This is an archive repository for hihocoder questions and my solutions.
.Net Core 2.1.403
Every problem is constructed under an individual project. For projects with standard input, sample input has been already stored in corresponding file with name input
. You can use it with following command:
cat input | dotnet run
Updated on 2019-10-14
ID | Name | Tags | Difficulty | Solved | Solution |
---|---|---|---|---|---|
1000 | A + B | math |
Lv.1 | 23798 | 1000 |
1014 | Trie树 | trie |
Lv.2 | 6813 | 1014 |
1037 | 数字三角形 | dp |
Lv.2 | 2628 | 1037 |
1049 | 后序遍历 | trees dfs |
Lv.2 | 1566 | 1049 |
1066 | 无间道之并查集 | disjoint set |
Lv.2 | 1182 | 1066 |
1081 | 最短路径·一 | shortest paths |
Lv.2 | 1200 | 1081 |
1094 | Lost in the City | enumeration |
Lv.1 | 951 | 1094 |
1097 | 最小生成树一·Prim算法 | mst |
Lv.2 | 990 | 1097 |
1098 | 最小生成树二·Kruscal算法 | mst |
Lv.2 | 843 | 1098 |
1105 | 题外话·堆 | heap |
Lv.2 | 759 | 1105 |
1109 | 最小生成树三·堆优化的Prim算法 | mst heap |
Lv.2 | 487 | 1109 |
1152 | Lucky Substrings | Lv.1 | 1274 | 1152 | |
1186 | Coordinates | Lv.1 | 1014 | 1186 | |
1288 | Font Size | Lv.1 | 3448 | 1288 | |
1322 | Tree or Not | dfs disjoint set |
Lv.2 | 193 | 1322 |
1335 | Email Merge | data structure |
Lv.2 | 68 | 1335 |
1361 | Playfair密码表 | Lv.1 | 536 | 1361 | |
1376 | 数组去重 | Lv.2 | 97 | 1376 | |
1458 | Parentheses Matching | Lv.1 | 154 | 1458 | |
1481 | 出勤记录I | Lv.1 | 481 | 1481 | |
1493 | 歌德巴赫猜想 | Lv.1 | 492 | 1493 | |
1494 | 一面砖墙 | Lv.2 | 331 | 1494 | |
1501 | 风格不统一如何写程序 | Lv.1 | 468 | 1501 | |
1518 | 最大集合 | Lv.1 | 272 | 1518 | |
1522 | F1 Score | Lv.1 | 247 | 1522 | |
1603 | 提取用户名 | Lv.1 | 195 | 1603 | |
1615 | 矩阵游戏II | Lv.1 | 141 | 1615 | |
1662 | 查找三阶幻方 | Lv.1 | 154 | 1662 | |
1675 | 稀疏矩阵乘积 | Lv.1 | 74 | 1675 | |
1678 | 版本号排序 | Lv.1 | 124 | 1678 | |
1682 | 扫雷游戏 | Lv.1 | 142 | 1682 | |
1720 | 小数数字 | Lv.1 | 126 | 1720 | |
1740 | 替换函数 | Lv.1 | 76 | 1740 | |
1761 | 洗牌 | Lv.1 | 58 | 1761 | |
1788 | 偶数长度回文子串 | Lv.1 | 80 | 1788 | |
1820 | 切割木棒 | Lv.1 | 66 | 1820 | |
1824 | 右转九十度 | Lv.1 | 52 | 1824 | |
1842 | AB字符串 | Lv.1 | 69 | 1842 | |
1850 | 字母去重 | Lv.1 | 93 | 1850 | |
1862 | 立方体 | Lv.1 | 60 | 1862 | |
1888 | 货运费用 | Lv.1 | 55 | 1888 | |
1892 | 修改字符串 | Lv.1 | 39 | 1892 | |
1928 | 方格矩阵高度 | Lv.1 | 55 | 1928 | |
1959 | 鱼的战斗 | Lv.1 | 58 | 1959 | |
1960 | 奇因子之和 | Lv.2 | 53 | 1960 | |
1985 | 订单追踪 | Lv.1 | 15 | 1985 |
ID | Name | Tags | Difficulty | Solved | Solution |
---|---|---|---|---|---|
1015 | KMP算法 | kmp |
Lv.3 | 4259 | |
1033 | Alternating Sums | dp |
Lv.2 | 863 | |
1034 | Twilight's Kingdom | offline algorithm balanced tree data structure |
Lv.5 | 128 | |
1035 | Self-Driving III | dp dp tree |
Lv.4 | 139 | |
1036 | Trie图 | trie automata |
Lv.3 | 828 | |
1038 | 01背包 | dp |
Lv.2 | 3550 | |
1039 | 字符消除 | strings |
Lv.1 | 3024 | |
1040 | 矩形判断 | geometry |
Lv.2 | 977 | |
1041 | 国庆出游 | trees dfs |
Lv.2 | 661 | |
1042 | 跑马圈地 | enumeration |
Lv.2 | 279 | |
1043 | 完全背包 | dp |
Lv.2 | 2197 | |
1044 | 状态压缩·一 | bitmasking dp |
Lv.2 | 1126 | |
1045 | Projection | math enumeration binary search |
Lv.4 | 8 | |
1046 | K Seq | segment tree heap |
Lv.5 | 70 | |
1047 | Random Tree | math combinatorics probabilities |
Lv.5 | 16 | |
1048 | 状态压缩·二 | bitmasking dp |
Lv.3 | 578 | |
1050 | 树中的最长路 | trees |
Lv.2 | 1107 | |
1051 | 补提交卡 | greedy enumeration |
Lv.1 | 3038 | |
1053 | 居民迁移 | greedy binary search |
Lv.2 | 158 | |
1054 | 滑动解锁 | dfs |
Lv.2 | 323 | |
1055 | 刷油漆 | trees dp |
Lv.2 | 669 | |
1057 | Performance Log | Lv.2 | 498 | ||
1058 | Combination Lock | Lv.3 | 92 | ||
1059 | String Matching Content Length | Lv.2 | 360 | ||
1062 | 最近公共祖先·一 | trees lca |
Lv.2 | 980 | |
1063 | Travel on a Tree | dp tree |
Lv.4 | 150 | |
1064 | Circle | geometry |
Lv.4 | 79 | |
1065 | Find the Most Weighted Node | trees divide and conquer |
Lv.5 | 58 | |
1067 | 最近公共祖先·二 | trees lca |
Lv.2 | 612 | |
1068 | RMQ-ST算法 | rmq |
Lv.2 | 905 | |
1069 | 最近公共祖先·三 | trees lca |
Lv.2 | 516 | |
1070 | RMQ问题再临 | enumeration |
Lv.2 | 638 | |
1071 | Toy | Lv.4 | 23 | ||
1072 | Guidance | Lv.4 | 30 | ||
1073 | Singles Day | Lv.5 | 48 | ||
1074 | Typeface Design | rmq |
Lv.4 | 101 | |
1075 | Little Pony and Alohomora Part III | combinatorics dp |
Lv.4 | 163 | |
1076 | Chain of AND Operations | dp |
Lv.4 | 152 | |
1077 | RMQ问题再临-线段树 | segment tree |
Lv.3 | 776 | |
1078 | 线段树的区间修改 | segment tree |
Lv.3 | 765 | |
1079 | 离散化 | segment tree discretization |
Lv.3 | 449 | |
1080 | 更为复杂的买卖房屋姿势 | segment tree |
Lv.3 | 375 | |
1082 | The Marshtomp has seen it all before | strings |
Lv.1 | 2214 | |
1083 | Integral | geometry |
Lv.3 | 83 | |
1084 | Extend KMP | suffix tree |
Lv.4 | 120 | |
1085 | Polynomial | math |
Lv.5 | 0 | |
1086 | Browser Caching | hash |
Lv.2 | 371 | |
1087 | Hamiltonian Cycle | bitmasking dp |
Lv.2 | 166 | |
1088 | Right-click Context Menu | trees dfs |
Lv.3 | 58 | |
1089 | 最短路径·二:Floyd算法 | shortest paths |
Lv.2 | 1157 | |
1090 | Highway | math |
Lv.2 | 84 | |
1091 | Clicker | dp |
Lv.3 | 144 | |
1092 | Have Lunch Together | shortest paths |
Lv.2 | 174 | |
1093 | 最短路径·三:SPFA算法 | shortest paths |
Lv.2 | 801 | |
1095 | HIHO Drinking Game | binary search |
Lv.2 | 232 | |
1096 | Divided Product | dp |
Lv.3 | 209 | |
1099 | Constellations | enumeration |
Lv.2 | 115 | |
1100 | Disk Storage | constructive algorithms |
Lv.3 | 72 | |
1101 | Arithmetic Puzzles | backtracking pruning |
Lv.4 | 16 | |
1102 | Individual Income Tax | math |
Lv.2 | 322 | |
1103 | Colorful Lecture Note | strings stack |
Lv.2 | 285 | |
1104 | Suzhou Adventure | tree dp |
Lv.3 | 108 | |
1106 | Koch Snowflake | math |
Lv.2 | 211 | |
1107 | Shortest Proper Prefix | trie |
Lv.2 | 250 | |
1108 | Troublesome Power Supply | 2-sat |
Lv.3 | 72 | |
1110 | Regular Expression | divide and conquer dp |
Lv.2 | 286 | |
1111 | Huffman Code | combinatorics |
Lv.3 | 63 | |
1112 | Good Paths on A Tree | Lv.4 | 33 | ||
1113 | Willful Tycoon | Lv.4 | 14 | ||
1114 | 小Hi小Ho的惊天大作战:扫雷·一 | Lv.2 | 444 | ||
1115 | Nozdormu | enumeration backtracking |
Lv.2 | 83 | |
1116 | Calc | segment tree |
Lv.3 | 167 | |
1117 | Age of War | dp probabilities |
Lv.4 | 27 | |
1118 | OTK | dp |
Lv.5 | 0 | |
1119 | 小Hi小Ho的惊天大作战:扫雷·二 | Lv.2 | 159 | ||
1120 | 小Hi小Ho的惊天大作战:扫雷·三 | Lv.1 | 198 | ||
1121 | 二分图一•二分图判定 | Lv.1 | 1042 | ||
1122 | 二分图二•二分图最大匹配之匈牙利算法 | Lv.3 | 518 | ||
1123 | Good Pair | Lv.3 | 200 | ||
1124 | Good Matrix | Lv.3 | 90 | ||
1125 | Good String | Lv.3 | 36 | ||
1126 | Good Permutation | Lv.4 | 21 | ||
1127 | 二分图二·二分图最小点覆盖和最大独立集 | Lv.2 | 382 | ||
1133 | 二分·二分查找之k小数 | Lv.2 | 844 | ||
1135 | Magic Box | Lv.1 | 2828 | ||
1136 | Professor Q's Software | Lv.2 | 710 | ||
1137 | Recruitment | Lv.1 | 143 | ||
1138 | Islands Travel | Lv.1 | 348 | ||
1139 | 二分·二分答案 | Lv.2 | 313 | ||
1141 | 二分·归并排序之逆序对 | Lv.2 | 643 | ||
1142 | 三分·三分求极值 | Lv.2 | 622 | ||
1143 | 骨牌覆盖问题·一 | Lv.1 | 1454 | ||
1144 | 01-string | Lv.2 | 408 | ||
1145 | Nichijou | Lv.3 | 86 | ||
1146 | Dark Forest | Lv.4 | 48 | ||
1147 | Portal | Lv.5 | 66 | ||
1148 | February 29 | Lv.1 | 3427 | ||
1149 | Palindrome | Lv.2 | 917 | ||
1150 | Base Station | Lv.3 | 420 | ||
1151 | 骨牌覆盖问题·二 | Lv.2 | 510 | ||
1153 | Numeric Keypad | Lv.2 | 357 | ||
1154 | Spring Outing | Lv.3 | 173 | ||
1155 | S-expression | Lv.3 | 40 | ||
1156 | Colorful Tree | Lv.4 | 315 | ||
1157 | Building Pyramids | Lv.4 | 125 | ||
1158 | Prime Dependence | Lv.4 | 648 | ||
1159 | Poker | Lv.4 | 245 | ||
1160 | Attack | Lv.4 | 348 | ||
1161 | XiaoIce | Lv.4 | 84 | ||
1162 | 骨牌覆盖问题·三 | Lv.2 | 243 | ||
1163 | 博弈游戏·Nim游戏 | Lv.2 | 845 | ||
1164 | Randomized Fibonacci | Lv.2 | 413 | ||
1165 | Yuuka's Puzzle Game | Lv.3 | 128 | ||
1166 | Commutative Algebra | Lv.3 | 47 | ||
1167 | Advanced Theoretical Computer Science | Lv.4 | 82 | ||
1168 | Transport | Lv.3 | 367 | ||
1169 | Game | Lv.4 | 202 | ||
1170 | Robots | Lv.4 | 212 | ||
1171 | City and Magic Tower | Lv.5 | 65 | ||
1172 | 博弈游戏·Nim游戏·二 | Lv.2 | 435 | ||
1173 | 博弈游戏·Nim游戏·三 | Lv.2 | 279 | ||
1175 | 拓扑排序·二 | Lv.1 | 767 | ||
1176 | 欧拉路·一 | Lv.2 | 622 | ||
1177 | Straight | Lv.2 | 250 | ||
1178 | Counting | Lv.2 | 223 | ||
1179 | Finite Game | Lv.3 | 145 | ||
1180 | No Dice | Lv.5 | 12 | ||
1181 | 欧拉路·二 | Lv.2 | 499 | ||
1182 | 欧拉路·三 | Lv.2 | 301 | ||
1183 | 连通性一·割边与割点 | Lv.2 | 386 | ||
1184 | 连通性二·边的双连通分量 | Lv.2 | 313 | ||
1185 | 连通性·三 | Lv.2 | 254 | ||
1187 | Divisors | Lv.2 | 310 | ||
1188 | Swimming Plans | Lv.3 | 28 | ||
1189 | Events Arrangement | Lv.4 | 19 | ||
1190 | 连通性·四 | Lv.2 | 189 | ||
1191 | Mr.W and Grid | Lv.3 | 117 | ||
1192 | Easy Tree Embedding | Lv.4 | 70 | ||
1193 | Treap | Lv.4 | 19 | ||
1194 | Gate Set Classification | Lv.5 | 1 | ||
1195 | 高斯消元·一 | Lv.2 | 267 | ||
1196 | 高斯消元·二 | Lv.2 | 183 | ||
1198 | Memory Allocating Algorithm | Lv.2 | 158 | ||
1199 | Tower Defense Game | Lv.3 | 101 | ||
1200 | Increase Charisma Points | Lv.3 | 37 | ||
1224 | Racing | Lv.2 | 342 | ||
1225 | Sunflower | Lv.4 | 37 | ||
1226 | Elfin | Lv.4 | 8 | ||
1227 | The Cats' Feeding Spots | Lv.2 | 1054 | ||
1228 | Mission Impossible 6 | Lv.3 | 397 | ||
1229 | Protecting Homeless Cats | Lv.5 | 17 | ||
1230 | The Celebration of Rabbits | Lv.4 | 70 | ||
1231 | Border Length | Lv.4 | 109 | ||
1232 | Couple Trees | Lv.4 | 171 | ||
1233 | Boxes | Lv.3 | 467 | ||
1234 | Fractal | Lv.2 | 1223 | ||
1235 | New Teaching Buildings | Lv.5 | 3 | ||
1236 | Scores | Lv.4 | 170 | ||
1237 | Farthest Point | Lv.2 | 886 | ||
1238 | Total Highway Distance | Lv.2 | 455 | ||
1239 | Fibonacci | Lv.3 | 1009 | ||
1240 | Image Encryption | Lv.4 | 150 | ||
1241 | Best Route in a Grid | Lv.2 | 269 | ||
1242 | MX Loves Game | Lv.4 | 128 | ||
1243 | MX Loves Bomb | Lv.4 | 72 | ||
1244 | MX Loves Hash | Lv.5 | 2 | ||
1245 | WPH and Triangles | Lv.2 | 249 | ||
1246 | WPH and Ring | Lv.3 | 81 | ||
1247 | WPH and Cities | Lv.4 | 71 | ||
1248 | WPH and Groups | Lv.5 | 8 | ||
1249 | Xiongnu's Land | Lv.3 | 234 | ||
1250 | Xiang Hex | Lv.5 | 7 | ||
1251 | Today Is a Rainy Day | Lv.5 | 108 | ||
1252 | Kejin Game | Lv.5 | 100 | ||
1253 | Stamps | Lv.5 | 13 | ||
1254 | You Are Under Arrest | Lv.5 | 3 | ||
1255 | Mysterious Antiques in Sackler Museum | Lv.3 | 233 | ||
1256 | Archipelago Tour | Lv.5 | 9 | ||
1257 | Snake Carpet | Lv.4 | 150 | ||
1258 | Osu! Master | Lv.3 | 254 | ||
1259 | A Math Problem | Lv.4 | 242 | ||
1260 | String Problem I | Lv.3 | 166 | ||
1261 | String Problem II | Lv.4 | 60 | ||
1262 | String Problem III | Lv.5 | 11 | ||
1263 | String Problem IV | Lv.5 | 2 | ||
1264 | Magic String | Lv.3 | 75 | ||
1265 | Endless Operations | Lv.4 | 49 | ||
1267 | Eulerian subgraphs | Lv.5 | 44 | ||
1269 | 优化延迟 | Lv.2 | 434 | ||
1270 | 建造基地 | Lv.3 | 297 | ||
1271 | 舰队游戏 | Lv.3 | 68 | ||
1272 | 买零食 | Lv.1 | 818 | ||
1273 | 清理海报 | Lv.2 | 253 | ||
1274 | 自行车架 | Lv.3 | 59 | ||
1275 | 扫地机器人 | Lv.4 | 26 | ||
1279 | Rikka with Sequence | Lv.3 | 67 | ||
1280 | Rikka with Sequence II | Lv.3 | 29 | ||
1281 | Rikka with Graph | Lv.4 | 9 | ||
1282 | Rikka with Sequence III | Lv.5 | 5 | ||
1283 | hiho密码 | Lv.1 | 889 | ||
1284 | 机会渺茫 | Lv.2 | 548 | ||
1285 | 智力竞赛 | Lv.3 | 241 | ||
1286 | 子矩阵求和 | Lv.3 | 42 | ||
1287 | 数论一·Miller-Rabin质数测试 | Lv.2 | 505 | ||
1289 | 403 Forbidden | Lv.2 | 693 | ||
1290 | Demo Day | Lv.3 | 980 | ||
1291 | Building in Sandbox | Lv.3 | 173 | ||
1295 | 数论二·Eular质数筛法 | Lv.3 | 549 | ||
1296 | 数论三·约瑟夫问题 | Lv.2 | 425 | ||
1297 | 数论四·扩展欧几里德 | Lv.2 | 333 | ||
1298 | 数论五·欧拉函数 | Lv.3 | 243 | ||
1299 | Cheap Ticket | Lv.3 | 299 | ||
1300 | Koinobori | Lv.4 | 214 | ||
1301 | Lucky number | Lv.4 | 125 | ||
1302 | The Cleaning Robot Redemption | Lv.5 | 1 | ||
1303 | 数论六·模线性方程组 | Lv.3 | 208 | ||
1304 | 搜索一·24点 | Lv.1 | 347 | ||
1305 | Difference of Interval Collections | discretization |
Lv.2 | 120 | |
1306 | Stock Prices | rmq |
Lv.3 | 86 | |
1307 | Crossing Restricted Zone | geometry dfs disjoint set |
Lv.2 | 98 | |
1308 | 搜索二·骑士问题 | backtracking hash |
Lv.2 | 211 | |
1309 | Task Distribution | discretization |
Lv.2 | 181 | |
1310 | Counting Islands | dfs |
Lv.2 | 158 | |
1311 | Binary Fractions | math |
Lv.3 | 114 | |
1312 | 搜索三·启发式搜索 | backtracking |
Lv.3 | 133 | |
1313 | Treasure Boxes | greedy |
Lv.3 | 164 | |
1314 | Longest Non-Decreasing Subsequence | dp |
Lv.3 | 66 | |
1315 | Reachable Permutations | dp |
Lv.5 | 26 | |
1316 | Polynomial Evaluation | math randomized algorithm |
Lv.5 | 1 | |
1317 | 搜索四·跳舞链 | backtracking,dancing links |
Lv.3 | 173 | |
1318 | Invalid Binary Numbers | dp |
Lv.2 | 251 | |
1319 | Region Perimeter | backtracking |
Lv.2 | 146 | |
1320 | String Folding | dp |
Lv.3 | 87 | |
1321 | 搜索五·数独 | backtracking,dancing links |
Lv.4 | 98 | |
1323 | Making Palindrome | dp |
Lv.2 | 192 | |
1324 | Hilbert Curve | math,divide and conquer |
Lv.2 | 63 | |
1325 | 平衡树·Treap | balanced search tree |
Lv.3 | 247 | |
1326 | Ordered Binary String | enumeration |
Lv.2 | 178 | |
1327 | Separating Same Characters | greedy |
Lv.2 | 135 | |
1328 | Maze Escape | shortest paths,bfs |
Lv.2 | 110 | |
1329 | 平衡树·Splay | balanced search tree |
Lv.3 | 165 | |
1330 | Array Rearrangement | combinatorics |
Lv.2 | 115 | |
1331 | Biinary Numbers | dp |
Lv.2 | 141 | |
1332 | Basic Arithmetic Calculator | stack divide and conquer |
Lv.2 | 99 | |
1333 | 平衡树·Splay2 | balanced search tree |
Lv.3 | 96 | |
1334 | Word Construction | backtracking |
Lv.2 | 82 | |
1336 | Matrix Sum | binary indexed tree |
Lv.4 | 116 | |
1337 | 平衡树·SBT | balanced search tree |
Lv.4 | 99 | |
1338 | A Game | dp |
Lv.2 | 197 | |
1339 | Dice Possibility | dp |
Lv.3 | 153 | |
1340 | Robots Crossing River | greedy |
Lv.2 | 41 | |
1341 | Constraint Checker | strings |
Lv.2 | 471 | |
1342 | Full Binary Tree Picture | trees binary search |
Lv.3 | 255 | |
1343 | Stable Members | graph theory topological sort |
Lv.3 | 115 | |
1344 | Part-Time Jobs | shortest paths bitmasking dp |
Lv.3 | 32 | |
1345 | Little h's Buddies | Lv.3 | 62 | ||
1346 | Little h's Buddies II | Lv.3 | 34 | ||
1347 | Little h's Tree | Lv.4 | 41 | ||
1348 | Little h's Rabbits | Lv.5 | 14 | ||
1349 | Nature Numbers | math |
Lv.2 | 129 | |
1351 | Popular Products | Lv.2 | 92 | ||
1352 | Counting Islands II | Lv.3 | 94 | ||
1353 | 满减优惠 | Lv.2 | 566 | ||
1354 | 积水的城市 | Lv.3 | 291 | ||
1355 | 罚抄一百遍 | Lv.3 | 50 | ||
1356 | 分隔相同整数 | Lv.3 | 137 | ||
1357 | 小Ho的防护盾 | Lv.2 | 293 | ||
1358 | 小P的强力值 | Lv.2 | 168 | ||
1359 | 震荡数组 | Lv.3 | 42 | ||
1360 | 凸多边形 | Lv.4 | 79 | ||
1362 | 修补木桶 | Lv.2 | 261 | ||
1363 | 图像算子 | Lv.3 | 65 | ||
1364 | 奖券兑换 | Lv.4 | 195 | ||
1365 | 图片排版 | Lv.1 | 87 | ||
1366 | 逆序单词 | Lv.2 | 489 | ||
1367 | 等式填空 | Lv.3 | 47 | ||
1368 | 积水的城市2 | Lv.3 | 30 | ||
1369 | 网络流一·Ford-Fulkerson算法 | Lv.3 | 483 | ||
1370 | 快乐数字 | Lv.2 | 83 | ||
1371 | 翻转链表 | Lv.2 | 62 | ||
1372 | 平方求和 | Lv.2 | 52 | ||
1373 | 二叉树垂直遍历 | Lv.2 | 18 | ||
1374 | 计算器 | Lv.3 | 44 | ||
1375 | 沙漠之旅 | Lv.2 | 38 | ||
1377 | 设计LRU Cache | Lv.2 | 22 | ||
1378 | 网络流二·最大流最小割定理 | Lv.3 | 256 | ||
1379 | Emulator | Lv.3 | 143 | ||
1380 | Certificate | Lv.3 | 51 | ||
1381 | Little Y's Tree | Lv.4 | 39 | ||
1382 | Automorphism | Lv.5 | 3 | ||
1383 | The Book List | Lv.4 | 574 | ||
1384 | Genius ACM | Lv.5 | 154 | ||
1385 | A Simple Job | Lv.4 | 789 | ||
1386 | Pick Your Players | Lv.5 | 39 | ||
1387 | A Research on "The Hundred Family Surnames" | Lv.5 | 95 | ||
1388 | Periodic Signal | Lv.4 | 347 | ||
1389 | Sewage Treatment | Lv.5 | 20 | ||
1390 | Ada's Needle Experiment | Lv.5 | 2 | ||
1391 | Countries | Lv.4 | 277 | ||
1392 | War Chess | Lv.5 | 60 | ||
1393 | 网络流三·二分图多重匹配 | Lv.3 | 245 | ||
1394 | 网络流四·最小路径覆盖 | Lv.4 | 253 | ||
1398 | 网络流五·最大权闭合子图 | Lv.4 | 217 | ||
1399 | Shortening Sequence | Lv.2 | 3228 | ||
1400 | Composition | Lv.3 | 1178 | ||
1401 | Registration Day | Lv.3 | 383 | ||
1402 | MS Recognition | Lv.4 | 85 | ||
1403 | 后缀数组一·重复旋律 | Lv.4 | 366 | ||
1404 | Five in a Row | Lv.1 | 97 | ||
1405 | Building Heap | Lv.2 | 71 | ||
1406 | Guess Number with Lower or Higher Hints | Lv.3 | 60 | ||
1407 | 后缀数组二·重复旋律2 | Lv.4 | 266 | ||
1408 | The Lastest Time | Lv.1 | 140 | ||
1409 | Smallest Sub Array | Lv.2 | 116 | ||
1410 | Powers of Two | Lv.3 | 81 | ||
1411 | Rikka with Sequence IV | Lv.3 | 132 | ||
1412 | Rikka with Subsequence | Lv.4 | 65 | ||
1413 | Rikka with String | Lv.4 | 59 | ||
1414 | Rikka with Grid | Lv.5 | 15 | ||
1415 | 后缀数组三·重复旋律3 | Lv.4 | 257 | ||
1416 | Inventory is Full | Lv.2 | 62 | ||
1417 | Total Hamming Distance | Lv.2 | 67 | ||
1418 | Target Sum | Lv.2 | 62 | ||
1419 | 后缀数组四·重复旋律4 | Lv.4 | 163 | ||
1420 | Bigint Multiplication | Lv.2 | 59 | ||
1421 | 四叉树 | Lv.3 | 65 | ||
1422 | Harmonic Matrix Counter | Lv.4 | 13 | ||
1423 | Binary Tree | Lv.5 | 4 | ||
1424 | Asa's Chess Problem | Lv.4 | 53 | ||
1425 | What a Beautiful Lake | Lv.3 | 92 | ||
1426 | What a Ridiculous Election | Lv.3 | 124 | ||
1427 | What a Simple Research | Lv.3 | 94 | ||
1428 | A Triangle Puzzle | Lv.4 | 11 | ||
1429 | A New Ground Heating Device | Lv.4 | 26 | ||
1430 | A Boring Problem | Lv.4 | 65 | ||
1431 | Parrot | Lv.5 | 6 | ||
1432 | JiLi Number | Lv.4 | 75 | ||
1433 | Boarding Passes | Lv.2 | 55 | ||
1434 | Sorting Photo Files | Lv.2 | 70 | ||
1435 | Circle Detect | Lv.3 | 45 | ||
1436 | GeoHash一·编码解码 | Lv.3 | 60 | ||
1437 | GeoHash二·附近目标 | Lv.3 | 30 | ||
1438 | Gas Stations | Lv.2 | 49 | ||
1439 | Logic Expression Tree | Lv.3 | 34 | ||
1440 | Keywords Filter | Lv.3 | 33 | ||
1441 | 后缀自动机一·基本概念 | Lv.2 | 236 | ||
1442 | Smallest Rectangle | Lv.2 | 48 | ||
1443 | Push Button I | Lv.2 | 57 | ||
1444 | Push Button II | Lv.3 | 42 | ||
1445 | 后缀自动机二·重复旋律5 | Lv.4 | 530 | ||
1446 | Big Plus | Lv.2 | 73 | ||
1447 | Interval Coverage | Lv.2 | 56 | ||
1448 | Split Array | Lv.2 | 56 | ||
1449 | 后缀自动机三·重复旋律6 | Lv.4 | 426 | ||
1450 | Inside Triangle | Lv.2 | 64 | ||
1451 | Ctrl-C Ctrl-V | Lv.2 | 41 | ||
1452 | Longest Subsequence | Lv.3 | 57 | ||
1453 | Rikka with Tree | Lv.3 | 171 | ||
1454 | Rikka with Tree II | Lv.4 | 98 | ||
1455 | Rikka with Tree III | Lv.4 | 35 | ||
1456 | Rikka with Lattice | Lv.5 | 19 | ||
1457 | 后缀自动机四·重复旋律7 | Lv.1 | 320 | ||
1459 | Same Letters In A Row | Lv.2 | 47 | ||
1460 | Smallest Substring | Lv.3 | 57 | ||
1461 | Rikka with Number | Lv.3 | 91 | ||
1462 | Rikka with Tree IV | Lv.4 | 26 | ||
1463 | Rikka with Cactus | Lv.5 | 1 | ||
1464 | Rikka with Flow | Lv.5 | 9 | ||
1465 | 后缀自动机五·重复旋律8 | Lv.1 | 226 | ||
1466 | 后缀自动机六·重复旋律9 | Lv.1 | 75 | ||
1467 | 2-SAT·hihoCoder音乐节 | Lv.1 | 111 | ||
1468 | 2-SAT·hihoCoder新春晚会 | Lv.1 | 55 | ||
1469 | Fu | Lv.3 | 191 | ||
1470 | Fair Game | Lv.4 | 36 | ||
1471 | Crowded City | Lv.4 | 52 | ||
1472 | Magic Substring | Lv.5 | 10 | ||
1473 | 小Ho的强迫症 | Lv.2 | 225 | ||
1474 | 拆字游戏 | Lv.2 | 166 | ||
1475 | 数组分拆 | Lv.3 | 153 | ||
1476 | 矩形计数 | Lv.3 | 113 | ||
1477 | 闰秒 | Lv.1 | 122 | ||
1478 | 水陆距离 | Lv.2 | 279 | ||
1479 | 三等分 | Lv.3 | 101 | ||
1480 | 矩阵填数 | Lv.3 | 78 | ||
1482 | 出勤记录II | Lv.2 | 272 | ||
1483 | 区间价值 | Lv.3 | 123 | ||
1484 | 手势识别 | Lv.3 | 16 | ||
1486 | 物品价值 | Lv.2 | 220 | ||
1487 | 岛屿3 | Lv.2 | 203 | ||
1488 | 排队接水 | Lv.4 | 84 | ||
1489 | Legendary Items | Lv.2 | 656 | ||
1490 | Tree Restoration | Lv.2 | 357 | ||
1491 | Monster Killing | Lv.3 | 43 | ||
1492 | Parentheses Sequence | Lv.3 | 80 | ||
1495 | 矩形分割 | Lv.2 | 173 | ||
1496 | 寻找最大值 | Lv.3 | 238 | ||
1497 | Queen Attack | Lv.2 | 640 | ||
1498 | Diligent Robots | Lv.2 | 496 | ||
1499 | A Box of Coins | Lv.3 | 200 | ||
1500 | EL SUENO | Lv.3 | 96 | ||
1502 | 最大子矩阵 | Lv.2 | 242 | ||
1503 | 一人麻将 | Lv.2 | 77 | ||
1504 | 骑士游历 | Lv.3 | 127 | ||
1505 | 小Hi和小Ho的礼物 | Lv.2 | 165 | ||
1506 | 投掷硬币 | Lv.2 | 275 | ||
1507 | 可疑的记录 | Lv.2 | 153 | ||
1508 | 剑刃风暴 | Lv.3 | 62 | ||
1509 | XOR Sorting | Lv.2 | 158 | ||
1510 | Binary Reverse | Lv.3 | 15 | ||
1511 | The variance of tree | Lv.4 | 51 | ||
1512 | Tree Count | Lv.5 | 20 | ||
1513 | 小Hi的烦恼 | Lv.2 | 238 | ||
1514 | 偶像的条件 | Lv.2 | 277 | ||
1515 | 分数调查 | Lv.3 | 290 | ||
1516 | 过河问题 | Lv.3 | 53 | ||
1517 | 模拟降水 | Lv.4 | 10 | ||
1519 | 逃离迷宫II | Lv.2 | 119 | ||
1520 | 古老数字 | Lv.3 | 49 | ||
1521 | 矩阵游戏 | Lv.4 | 9 | ||
1523 | 数组重排2 | Lv.1 | 253 | ||
1524 | 逆序对 | Lv.2 | 209 | ||
1525 | 逃离迷宫3 | Lv.3 | 19 | ||
1526 | Sequence Value | Lv.3 | 130 | ||
1527 | Fast Multiplication | Lv.3 | 123 | ||
1528 | Basketball Game | Lv.4 | 30 | ||
1529 | Non-Decreasing Sequence | Lv.4 | 146 | ||
1530 | 分数取模 | Lv.2 | 194 | ||
1531 | 德国心脏病 | Lv.2 | 99 | ||
1532 | 最美和弦 | Lv.3 | 48 | ||
1533 | 道路修建 | Lv.4 | 2 | ||
1534 | Array Partition | Lv.2 | 127 | ||
1535 | MSFT | Lv.2 | 120 | ||
1536 | Selling Antique Coins | Lv.3 | 24 | ||
1537 | Unimodal Permutation | Lv.3 | 17 | ||
1538 | 大礼堂地毯 | Lv.2 | 102 | ||
1539 | 数组重排3 | Lv.2 | 102 | ||
1540 | 自信心 | Lv.3 | 15 | ||
1541 | 相交的铁路线 | Lv.3 | 48 | ||
1542 | 无根数变有根树 | Lv.2 | 242 | ||
1543 | SCI表示法 | Lv.2 | 185 | ||
1544 | 充电时刻表 | Lv.3 | 31 | ||
1545 | 小Hi和小Ho的对弈游戏 | Lv.4 | 56 | ||
1546 | 集合计数 | Lv.2 | 167 | ||
1547 | 迷宫探索 | Lv.2 | 112 | ||
1548 | 召唤佣兽 | Lv.3 | 10 | ||
1549 | 或运算和 | Lv.4 | 36 | ||
1550 | 顺序三元组 | Lv.1 | 247 | ||
1551 | 统计子目录 | Lv.2 | 125 | ||
1552 | 缺失的拼图 | Lv.3 | 97 | ||
1553 | 区间统计 | Lv.3 | 26 | ||
1554 | Shortest Nore0061 | Lv.3 | 73 | ||
1555 | Quartic Equation | Lv.3 | 32 | ||
1556 | Dodge Torpedoes | Lv.4 | 1 | ||
1557 | Toffoli Gate | Lv.5 | 1 | ||
1558 | H国的身份证号码I | Lv.1 | 310 | ||
1559 | 合并子目录 | Lv.2 | 95 | ||
1560 | H国的身份证号码II | Lv.3 | 126 | ||
1561 | 观光旅行 | Lv.4 | 48 | ||
1562 | 小Hi的钟表 | Lv.1 | 208 | ||
1563 | 影院座位 | Lv.2 | 61 | ||
1564 | 同步H公司的终端 | Lv.3 | 98 | ||
1565 | 大富翁 | Lv.3 | 116 | ||
1566 | 皇室成员的名字 | Lv.1 | 248 | ||
1567 | 偶树的切分 | Lv.2 | 179 | ||
1568 | 不一定合法括号序列 | Lv.3 | 95 | ||
1569 | 无限巧克力谜题 | Lv.3 | 10 | ||
1570 | 小Hi与法阵 | Lv.2 | 87 | ||
1571 | 小Hi与钢铁侠 | Lv.2 | 24 | ||
1572 | 小Hi与花盆 | Lv.3 | 119 | ||
1573 | 小Hi与矩阵 | Lv.3 | 43 | ||
1574 | 元素魔法 | Lv.2 | 86 | ||
1575 | 两个机器人 | Lv.2 | 64 | ||
1576 | 子树中的最小权值 | Lv.3 | 68 | ||
1577 | 为了Hiho的荣耀 | Lv.3 | 18 | ||
1578 | Visiting Peking University | Lv.5 | 1225 | ||
1579 | Reverse Suffix Array | Lv.5 | 111 | ||
1580 | Matrix | Lv.5 | 319 | ||
1581 | Agent Communication | Lv.5 | 54 | ||
1582 | Territorial Dispute | Lv.5 | 435 | ||
1583 | Cake | Lv.5 | 46 | ||
1584 | Bounce | Lv.5 | 568 | ||
1585 | Polynomial Product | Lv.5 | 30 | ||
1586 | Minimum | Lv.5 | 1031 | ||
1587 | Typist's Problem | Lv.5 | 69 | ||
1588 | The Next Moment | Lv.2 | 110 | ||
1589 | 回文子串的数量 | Lv.2 | 105 | ||
1590 | 紧张的会议室 | Lv.3 | 45 | ||
1591 | 锦标赛 | Lv.3 | 16 | ||
1595 | Numbers | Lv.3 | 164 | ||
1596 | Beautiful Sequence | Lv.4 | 82 | ||
1597 | Good 01-Sequence | Lv.4 | 12 | ||
1598 | K-Beautiful Tree | Lv.5 | 5 | ||
1599 | 逃离迷宫4 | Lv.2 | 98 | ||
1600 | 料理次元 | Lv.2 | 13 | ||
1601 | 最大得分 | Lv.3 | 82 | ||
1602 | 本质不同的回文子串的数量 | Lv.4 | 74 | ||
1604 | 股票价格II | Lv.2 | 162 | ||
1605 | 小Hi的生成树计数 | Lv.3 | 90 | ||
1606 | 小Hi和小Ho的密码 | Lv.3 | 15 | ||
1607 | H星人社交网络 | Lv.1 | 112 | ||
1608 | Jerry的奶酪 | Lv.2 | 42 | ||
1609 | 数组分拆II | Lv.3 | 30 | ||
1610 | 座位安排计划 | Lv.3 | 9 | ||
1611 | 气泡图 | Lv.1 | 120 | ||
1612 | 候选人追踪 | Lv.2 | 27 | ||
1613 | 墨水滴 | Lv.3 | 61 | ||
1614 | 鱼形子图计数 | Lv.3 | 16 | ||
1616 | 是二叉搜索树吗? | Lv.2 | 39 | ||
1617 | 方格取数 | Lv.3 | 63 | ||
1618 | 单词接龙 | Lv.3 | 20 | ||
1619 | “共同富裕” | Lv.1 | 162 | ||
1620 | 股票价格3 | Lv.2 | 114 | ||
1621 | 超市规划 | Lv.3 | 19 | ||
1622 | 有趣的子区间 | Lv.3 | 25 | ||
1623 | 有歧义的号码 | Lv.1 | 151 | ||
1624 | 最短游览路线 | Lv.2 | 114 | ||
1625 | 重复字符串匹配 | Lv.3 | 89 | ||
1626 | 缩写命名 | Lv.3 | 64 | ||
1627 | Domains | Lv.5 | 8 | ||
1628 | K-Dimensional Foil | Lv.5 | 11 | ||
1629 | Graph | Lv.5 | 52 | ||
1630 | Chinese Checkers | Lv.5 | 50 | ||
1631 | Cats and Fish | Lv.5 | 466 | ||
1632 | Secret Poems | Lv.5 | 397 | ||
1633 | Liaoning Ship’s Voyage | Lv.5 | 118 | ||
1634 | Puzzle Game | Lv.5 | 127 | ||
1635 | Colored Nodes | Lv.5 | 32 | ||
1636 | Pangu and Stones | Lv.5 | 280 | ||
1637 | 逃离单身节 | Lv.1 | 110 | ||
1638 | 小Hi的天平 | Lv.2 | 49 | ||
1639 | 图书馆 | Lv.3 | 15 | ||
1640 | 命名的烦恼 | Lv.3 | 24 | ||
1643 | 最少换乘 | Lv.3 | 47 | ||
1644 | 完美命名的烦恼 | Lv.3 | 22 | ||
1645 | Rikka with Sequence V | Lv.2 | 157 | ||
1646 | Rikka with String II | Lv.5 | 30 | ||
1647 | Rikka with Function | Lv.5 | 3 | ||
1648 | Rikka with String III | Lv.5 | 3 | ||
1649 | 漏写的数字 | Lv.1 | 115 | ||
1650 | 扁平化管理 | Lv.2 | 61 | ||
1651 | 小球染色 | Lv.3 | 56 | ||
1652 | 三角形面积和2 | Lv.3 | 15 | ||
1653 | 公平分队 | Lv.2 | 121 | ||
1654 | XY游戏 | Lv.2 | 61 | ||
1655 | 第K小最简真分数 | Lv.3 | 52 | ||
1656 | 前缀后缀查询 | Lv.3 | 34 | ||
1660 | 鱼雷射击 | Lv.3 | 12 | ||
1661 | 数组区间 | Lv.4 | 19 | ||
1663 | 双阶乘的末尾数字 | Lv.2 | 82 | ||
1664 | 01间隔方阵 | Lv.3 | 60 | ||
1665 | 方块游戏 | Lv.3 | 59 | ||
1670 | 比赛日程安排 | Lv.1 | 92 | ||
1671 | 反转子串 | Lv.2 | 66 | ||
1672 | 区间问题 | Lv.3 | 63 | ||
1673 | 01间隔矩阵 | Lv.3 | 50 | ||
1674 | 对局匹配 | Lv.1 | 94 | ||
1676 | 树上的等差数列 | Lv.2 | 46 | ||
1677 | 翻转字符串 | Lv.3 | 35 | ||
1679 | 自底向上遍历二叉树 | Lv.2 | 76 | ||
1680 | hiho字符串2 | Lv.3 | 56 | ||
1681 | 最长多数子串 | Lv.4 | 22 | ||
1683 | 切分短信 | Lv.2 | 30 | ||
1684 | 车队 | Lv.3 | 90 | ||
1685 | 最大子矩阵2 | Lv.3 | 31 | ||
1686 | 互补二元组 | Lv.1 | 134 | ||
1687 | 寻找切线 | Lv.2 | 79 | ||
1688 | LR问题 | Lv.2 | 59 | ||
1689 | 推断大小关系 | Lv.3 | 50 | ||
1690 | AEIOU | Lv.1 | 84 | ||
1691 | 数字游戏 | Lv.2 | 48 | ||
1692 | 第K小分数 | Lv.3 | 57 | ||
1693 | 逆序异或和 | Lv.3 | 55 | ||
1694 | 删除树节点 | Lv.2 | 89 | ||
1695 | 公平分队II | Lv.3 | 49 | ||
1696 | 折线中点 | Lv.1 | 89 | ||
1697 | 最小先序遍历 | Lv.2 | 86 | ||
1698 | 假期计划 | Lv.3 | 35 | ||
1699 | 矩形深度 | Lv.4 | 10 | ||
1700 | 相似颜色 | Lv.1 | 149 | ||
1701 | 挑选子集 | Lv.2 | 109 | ||
1702 | 矩阵迷宫 | Lv.3 | 96 | ||
1703 | 第K小先序遍历 | Lv.3 | 52 | ||
1704 | 循环数组 | Lv.1 | 201 | ||
1705 | 座位问题 | Lv.2 | 110 | ||
1706 | 末尾有最多0的乘积 | Lv.3 | 105 | ||
1707 | 麻烦的第K大问题 | Lv.4 | 23 | ||
1708 | 灯光控制 | Lv.1 | 50 | ||
1709 | 相似的字符串 | Lv.2 | 127 | ||
1710 | 等差子数列 | Lv.3 | 57 | ||
1711 | 评论框排版 | Lv.3 | 19 | ||
1712 | 字符串排序 | Lv.1 | 199 | ||
1713 | 亮灯方案 | Lv.2 | 64 | ||
1714 | 部门聚会 | Lv.3 | 102 | ||
1715 | 树的连通问题 | Lv.4 | 18 | ||
1716 | 继承顺位 | Lv.1 | 105 | ||
1717 | hiho字符串3 | Lv.2 | 72 | ||
1718 | 最长一次上升子序列 | Lv.3 | 39 | ||
1719 | 工具选择 | Lv.4 | 9 | ||
1721 | 回文字符串2 | Lv.2 | 84 | ||
1722 | 最小差值 | Lv.3 | 58 | ||
1723 | 子树统计 | Lv.4 | 22 | ||
1724 | 算式最大值 | Lv.1 | 82 | ||
1725 | 朋友字符串 | Lv.2 | 65 | ||
1726 | 区间覆盖问题 | Lv.3 | 38 | ||
1727 | 区间表示 | Lv.4 | 11 | ||
1728 | 卡片游戏 | Lv.1 | 51 | ||
1729 | 宝藏坐标 | Lv.2 | 41 | ||
1730 | 物品分类 | Lv.3 | 28 | ||
1731 | 云的观测 | Lv.4 | 9 | ||
1732 | 1-偏差排列 | Lv.1 | 76 | ||
1733 | 递增N元组 | Lv.2 | 54 | ||
1734 | 逃离迷宫5 | Lv.2 | 55 | ||
1735 | 最大割集 | Lv.4 | 10 | ||
1736 | 最大的K-偏差排列 | Lv.1 | 53 | ||
1737 | 孤独的字符 | Lv.2 | 55 | ||
1738 | 秋天来了 | Lv.3 | 28 | ||
1739 | Nim森林 | Lv.4 | 10 | ||
1742 | 树的权重 | Lv.2 | 55 | ||
1743 | K-偏差排列 | Lv.3 | 19 | ||
1744 | hohahola | Lv.1 | 63 | ||
1745 | 最大顺子 | Lv.2 | 76 | ||
1746 | 路径包含问题 | Lv.3 | 24 | ||
1747 | 随机排列 | Lv.3 | 18 | ||
1748 | 最小排列 | Lv.1 | 61 | ||
1749 | 最大前缀和 | Lv.2 | 31 | ||
1750 | 质数 | Lv.3 | 26 | ||
1751 | 随机排列2 | Lv.3 | 25 | ||
1752 | 方向 | Lv.1 | 76 | ||
1753 | 被遗忘的整数 | Lv.2 | 60 | ||
1754 | 金额组合 | Lv.3 | 46 | ||
1755 | 数字组合 | Lv.3 | 32 | ||
1756 | Monster | Lv.3 | 92 | ||
1757 | Rank Problem | Lv.4 | 19 | ||
1758 | Plus Or Minus | Lv.4 | 29 | ||
1759 | Pick Numbers | Lv.4 | 13 | ||
1760 | 命名 | Lv.1 | 52 | ||
1762 | 密码更改 | Lv.2 | 29 | ||
1763 | 道路摧毁 | Lv.3 | 19 | ||
1764 | 公平划分 | Lv.1 | 48 | ||
1765 | 配对 | Lv.2 | 41 | ||
1766 | 字符串问题 | Lv.3 | 38 | ||
1767 | 公共山峰 | Lv.3 | 18 | ||
1768 | 真正的素数 | Lv.1 | 55 | ||
1769 | 最长子段 | Lv.2 | 43 | ||
1770 | 单调数 | Lv.3 | 20 | ||
1771 | 解方程 | Lv.3 | 32 | ||
1772 | 最小距离字符串 | Lv.1 | 67 | ||
1773 | 打牌 | Lv.1 | 54 | ||
1774 | 最佳数字 | Lv.3 | 27 | ||
1775 | 密码转化 | Lv.2 | 51 | ||
1776 | 序列 | Lv.1 | 42 | ||
1777 | 彩球 | Lv.1 | 45 | ||
1778 | 最优子段 | Lv.2 | 52 | ||
1779 | 公路收费 | Lv.3 | 31 | ||
1780 | Another Assignment | Lv.2 | 73 | ||
1781 | Another Bubble Sort | Lv.4 | 54 | ||
1782 | Another Challenge | Lv.4 | 6 | ||
1783 | Another Duplicate Counting | Lv.5 | 4 | ||
1785 | 数字游戏2 | Lv.2 | 62 | ||
1786 | 跳石头 | Lv.2 | 75 | ||
1787 | 道路建设 | Lv.3 | 46 | ||
1789 | 阶乘问题 | Lv.2 | 60 | ||
1790 | 特工配对 | Lv.2 | 59 | ||
1791 | 幸运数字 | Lv.3 | 29 | ||
1792 | 数位翻转 | Lv.1 | 119 | ||
1793 | 最短公共子序列 | Lv.2 | 85 | ||
1794 | 拼三角形 | Lv.3 | 61 | ||
1795 | 神奇的序列 | Lv.3 | 33 | ||
1796 | 完美K倍子数组 | Lv.1 | 69 | ||
1797 | 单调递增子序列 | Lv.2 | 63 | ||
1798 | 666 | Lv.3 | 53 | ||
1799 | 基因合成 | Lv.4 | 11 | ||
1800 | 玩具设计师 | Lv.2 | 50 | ||
1801 | 剪切字符串 | Lv.2 | 27 | ||
1802 | 全速跑垒 | Lv.3 | 5 | ||
1803 | 共时性 | Lv.4 | 3 | ||
1804 | 地铁站 | Lv.2 | 23 | ||
1805 | 教科书般的亵渎 | Lv.2 | 10 | ||
1806 | 面包店 | Lv.2 | 14 | ||
1807 | 好的数字串 | Lv.4 | 15 | ||
1808 | A problem with constraint up to 5e4 | Lv.5 | 89 | ||
1809 | A problem with constraint up to 5e3 | Lv.4 | 38 | ||
1810 | A problem with constraint up to 5e2 | Lv.5 | 8 | ||
1811 | A problem with constraint up to 5e1 | Lv.5 | 25 | ||
1812 | 圆的最大权值 | Lv.1 | 59 | ||
1813 | 休息、复习和考试 | Lv.2 | 10 | ||
1814 | 取球游戏 | Lv.3 | 35 | ||
1815 | 中位数 | Lv.3 | 28 | ||
1816 | 工作城市分配 | Lv.1 | 77 | ||
1817 | 工作城市分配2 | Lv.2 | 47 | ||
1818 | 顺子组合 | Lv.2 | 39 | ||
1819 | 栈的加强版 | Lv.3 | 53 | ||
1821 | 取卡片游戏 | Lv.2 | 34 | ||
1822 | 战舰日常任务 | Lv.3 | 16 | ||
1823 | 树的黑白染色 | Lv.4 | 13 | ||
1825 | 钝角三角形 | Lv.2 | 22 | ||
1826 | 咖啡店选址 | Lv.2 | 10 | ||
1827 | 队长人选 | Lv.3 | 17 | ||
1828 | Saving Tang Monk II | Lv.5 | 679 | ||
1829 | Tomb Raider | Lv.5 | 658 | ||
1830 | Cheat | Lv.5 | 162 | ||
1831 | 80 Days | Lv.5 | 1034 | ||
1832 | Odd Chess | Lv.5 | 23 | ||
1833 | Shortest Path Problem | Lv.5 | 12 | ||
1834 | The Mole | Lv.5 | 26 | ||
1835 | K-Dimensional Foil II | Lv.5 | 173 | ||
1836 | Order | Lv.5 | 7 | ||
1837 | Rikka with Polygon | Lv.5 | 2 | ||
1838 | 鎕鎕鎕 | Lv.2 | 111 | ||
1839 | 榶榶榶 | Lv.3 | 51 | ||
1840 | 溏溏溏 | Lv.4 | 5 | ||
1841 | 煻煻煻 | Lv.5 | 1 | ||
1843 | 骨牌塔 | Lv.2 | 31 | ||
1844 | 数位乘积 | Lv.2 | 64 | ||
1845 | 泥泞的道路 | Lv.4 | 19 | ||
1846 | ABC | Lv.1 | 54 | ||
1847 | 等分数字串 | Lv.2 | 34 | ||
1848 | 子数组的和 | Lv.3 | 27 | ||
1849 | 子数组的中位数 | Lv.4 | 20 | ||
1851 | D级上司 | Lv.2 | 51 | ||
1852 | 数组的F值 | Lv.3 | 35 | ||
1853 | 方格染色 | Lv.3 | 28 | ||
1854 | 禁止登录 | Lv.1 | 54 | ||
1855 | 合法数字 | Lv.2 | 43 | ||
1856 | 构造矩阵 | Lv.2 | 33 | ||
1857 | 卡片序列 | Lv.3 | 15 | ||
1858 | 判断进制 | Lv.1 | 54 | ||
1859 | 复原折痕 | Lv.2 | 4 | ||
1860 | 最大异或和 | Lv.3 | 29 | ||
1861 | 合法括号序列 | Lv.3 | 9 | ||
1863 | 右孩子左兄弟 | Lv.1 | 35 | ||
1864 | 树上的监视器 | Lv.3 | 28 | ||
1865 | 最大公约数 | Lv.3 | 21 | ||
1866 | XOR | Lv.3 | 37 | ||
1867 | GCD | Lv.4 | 17 | ||
1868 | Dominos | Lv.5 | 1 | ||
1869 | Items | Lv.5 | 10 | ||
1870 | Jin Yong’s Wukong Ranking List | Lv.3 | 168 | ||
1871 | Heshen's Account Book | Lv.3 | 83 | ||
1872 | Pythagorean triple | Lv.5 | 20 | ||
1873 | Frog and Portal | Lv.3 | 112 | ||
1874 | Xor 2 | Lv.5 | 4 | ||
1875 | The Kth Largest Value | Lv.5 | 21 | ||
1876 | Solving Equations is Easy | Lv.5 | 12 | ||
1877 | Approximate Matching | Lv.5 | 51 | ||
1878 | Palindromes | Lv.5 | 111 | ||
1879 | Rikka with Triangles | Lv.5 | 32 | ||
1880 | 地铁环线 | Lv.1 | 65 | ||
1881 | 特殊任务 | Lv.2 | 31 | ||
1882 | 播放列表 | Lv.3 | 32 | ||
1883 | 生成树问题 | Lv.3 | 13 | ||
1884 | 括号序列 | Lv.1 | 41 | ||
1885 | 飞行路线 | Lv.2 | 23 | ||
1886 | 中位数2 | Lv.3 | 16 | ||
1887 | 圈地游戏 | Lv.4 | 5 | ||
1890 | 多维数组 | Lv.2 | 26 | ||
1891 | 括号序列2 | Lv.3 | 13 | ||
1893 | 生成用户名 | Lv.2 | 32 | ||
1894 | 跳数游戏 | Lv.3 | 22 | ||
1895 | 前后缀缩写 | Lv.3 | 9 | ||
1896 | 重复子序列问题 | Lv.1 | 33 | ||
1897 | 方圆距离 | Lv.2 | 18 | ||
1898 | 探索迷宫 | Lv.2 | 20 | ||
1899 | 收集贴纸 | Lv.3 | 7 | ||
1900 | 奇偶交错排列 | Lv.1 | 40 | ||
1901 | 增加得分 | Lv.2 | 24 | ||
1902 | 字符替换 | Lv.3 | 20 | ||
1903 | 编程课奖励 | Lv.3 | 27 | ||
1904 | 都8102年了 | Lv.1 | 51 | ||
1905 | 地形高度 | Lv.2 | 24 | ||
1906 | 区间求并 | Lv.2 | 16 | ||
1907 | 奇偶交错排列2 | Lv.3 | 9 | ||
1910 | 考眼力 | Lv.1 | 19 | ||
1912 | 员工组织图 | Lv.1 | 9 | ||
1913 | 星球人口 | Lv.1 | 24 | ||
1914 | 航班座位 | Lv.1 | 24 | ||
1915 | 取数游戏 | Lv.2 | 17 | ||
1916 | 循环复杂度 | Lv.3 | 11 | ||
1917 | CUTE and ETUC | Lv.2 | 23 | ||
1918 | Ximpha's mercy | Lv.3 | 12 | ||
1919 | Nero's magic | Lv.4 | 10 | ||
1920 | Hyper Cute Link | Lv.5 | 6 | ||
1921 | 字符串划分 | Lv.2 | 40 | ||
1922 | 构建最小权值二叉树 | Lv.3 | 34 | ||
1923 | 邻近HIO组合 | Lv.3 | 20 | ||
1924 | 字符串树 | Lv.1 | 41 | ||
1925 | 古代信使 | Lv.2 | 21 | ||
1926 | 逆序对计数 | Lv.3 | 24 | ||
1927 | 交错01串 | Lv.1 | 39 | ||
1929 | 数对 | Lv.2 | 48 | ||
1930 | 修整土地 | Lv.3 | 15 | ||
1931 | 最短管道距离 | Lv.1 | 64 | ||
1932 | 字符删除 | Lv.2 | 44 | ||
1933 | 最短管道距离2 | Lv.3 | 14 | ||
1934 | 木板刷油漆 | Lv.3 | 51 | ||
1935 | 浇花问题 | Lv.1 | 65 | ||
1936 | 连续整数列 | Lv.2 | 39 | ||
1938 | 还原BST | Lv.3 | 29 | ||
1939 | 三角形扫雷 | Lv.1 | 49 | ||
1940 | 游戏胜率 | Lv.2 | 41 | ||
1941 | 折返跑 | Lv.3 | 26 | ||
1942 | 单调序列 | Lv.3 | 15 | ||
1943 | 放置矩形 | Lv.1 | 52 | ||
1944 | 两条直线 | Lv.2 | 20 | ||
1945 | 有向图可达节点 | Lv.2 | 39 | ||
1946 | 找路径 | Lv.3 | 6 | ||
1947 | 推断上下级 | Lv.1 | 60 | ||
1948 | 数组划分游戏 | Lv.2 | 51 | ||
1949 | H市规划 | Lv.2 | 54 | ||
1950 | 占领树节点 | Lv.3 | 33 | ||
1951 | 二叉树 | Lv.3 | 54 | ||
1952 | 运算数 | Lv.4 | 14 | ||
1953 | 公倍数 | Lv.5 | 7 | ||
1954 | 压缩树 | Lv.5 | 10 | ||
1955 | 纸牌游戏 | Lv.1 | 22 | ||
1956 | 多项式系数 | Lv.2 | 21 | ||
1957 | 字符统计 | Lv.3 | 17 | ||
1958 | 有向图的关键点 | Lv.3 | 15 | ||
1962 | 紧张的会议室2 | Lv.4 | 15 | ||
1963 | 战斗胜率 | Lv.1 | 24 | ||
1964 | 最大房租 | Lv.2 | 35 | ||
1965 | 生存游戏 | Lv.3 | 18 | ||
1966 | 双LIS | Lv.3 | 11 | ||
1967 | Largest Area | Lv.2 | 71 | ||
1968 | Optimization of Matrix Multiplication | Lv.4 | 42 | ||
1969 | 等差数列 | Lv.1 | 30 | ||
1970 | 摧毁标靶 | Lv.2 | 11 | ||
1971 | 检查道路 | Lv.2 | 22 | ||
1972 | 解谜游戏 | Lv.3 | 3 | ||
1974 | 智能分包 | Lv.2 | 20 | ||
1975 | 灯塔问题2 | Lv.3 | 11 | ||
1976 | 逃离迷宫6 | Lv.3 | 24 | ||
1977 | 小Hi与魔法 | Lv.1 | 27 | ||
1978 | 选项编码 | Lv.2 | 24 | ||
1979 | 假期旅行 | Lv.3 | 23 | ||
1980 | 脉冲星观测 | Lv.3 | 5 | ||
1981 | 话题分析 | Lv.1 | 13 | ||
1982 | 交换数字 | Lv.2 | 8 | ||
1983 | 最小的字符串 | Lv.3 | 14 | ||
1984 | 集合与数组 | Lv.3 | 8 | ||
1986 | 数列问题 | Lv.1 | 17 | ||
1987 | 字符串的划分 | Lv.3 | 11 | ||
1988 | 光线弹射 | Lv.4 | 3 | ||
1989 | 幸运数之和 | Lv.1 | 6 | ||
1990 | 矩阵幻方 | Lv.1 | 2 | ||
1991 | 子串问题1 | Lv.1 | 4 | ||
1992 | 子串问题2 | Lv.2 | 4 | ||
1993 | 再买优惠 | Lv.1 | 33 | ||
1994 | 树与落叶 | Lv.2 | 14 | ||
1995 | 树上的最短边 | Lv.3 | 16 | ||
1996 | 01匹配 | Lv.3 | 11 |
ID | Name | Tags | Difficulty | Solved | Solution |
---|---|---|---|---|---|
1032 | 最长回文子串 | strings suffix tree |
Lv.2 | 3284 | 1032 |
1052 | 基因工程 | strings |
Lv.2 | 605 | 1052 |
1061 | Beautiful String | Lv.2 | 1274 | 1061 | |
1128 | 二分·二分查找 | Lv.2 | 988 | 1128 | |
1174 | 拓扑排序·一 | Lv.2 | 833 | 1174 | |
1197 | Give My Text Back | Lv.1 | 510 | 1197 | |
1223 | Inequality | Lv.1 | 587 | 1223 | |
1268 | 九宫 | Lv.1 | 661 | 1268 | |
1350 | Binary Watch | Lv.1 | 188 | 1350 | |
1485 | hiho字符串 | Lv.1 | 370 | 1485 | |
1641 | 热门号码 | Lv.1 | 125 | 1641 | |
1642 | 三角形面积和 | Lv.1 | 68 | 1642 | |
1784 | 传输数据 | Lv.1 | 93 | 1784 | |
1889 | 炸弹人 | Lv.2 | 22 | 1889 | |
1961 | 选择奏折 | Lv.3 | 33 | 1961 | |
1973 | 灯塔问题 | Lv.1 | 54 | 1973 |