ZiJiaW / LeetCode

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LeetCode

No. Name Hardness
4 Median of Two Sorted Arrays Hard
300 Longest Increasing Subsequence Medium
765 Couples Holding Hands Hard
799 Champagne Tower Medium
822 Card Flipping Game Medium
823 Binary Trees With Factors Medium
866 Prime Palindrome Medium
1145 Binary Tree Coloring Game Medium
1146 Snapshot Array Medium
1293 Shortest Path in a Grid with Obstacles Elimination Hard
1420 Build Array Where You Can Find The Maximum Exactly K Comparisons Hard
1585 Check If String Is Transformable With Substring Sort Operations Hard
1670 Design Front Middle Back Queue Medium
1722 Minimize Hamming Distance After Swap Operations Medium
1726 Tuple with Same Product Medium
1734 Decode XORed Permutation Medium
1752 Check if Array Is Sorted and Rotated Easy
1753 Maximum Score From Removing Stones Medium
1754 Largest Merge Of Two Strings Medium
1755 Closest Subsequence Sum Hard
1759 Count Number of Homogenous Substrings Medium
1760 Minimum Limit of Balls in a Bag Medium
1761 Minimum Degree of a Connected Trio in a Graph Hard
1764 Form Array by Concatenating Subarrays of Another Array Medium
1765 Map of Highest Peak Medium
1766 Tree of Coprimes Hard
1773 Count Items Matching a Rule Easy
1774 Closest Dessert Cost Medium
1775 Equal Sum Arrays With Minimum Number of Operations Medium
1776 Car Fleet II Hard
1781 Sum of Beauty of All Substrings Medium
1791 Find Center of Star Graph Medium
1792 Maximum Average Pass Ratio Medium
1837 Sum of Digits in Base K Easy
1838 Frequency of the Most Frequent Element Medium
1839 Longest Substring Of All Vowels in Order Medium
1840 Maximum Building Height Hard
1844 Replace All Digits with Characters Easy
1845 Seat Reservation Manager Medium
1846 Maximum Element After Decreasing and Rearranging Medium
1847 Closest Room Hard
1848 Minimum Distance to the Target Element Easy
1849 Splitting a String Into Descending Consecutive Values Medium
1850 Minimum Adjacent Swaps to Reach the Kth Smallest Number Medium
1851 Minimum Interval to Include Each Query Hard
1856 Maximum Subarray Min-Product Medium
1857 Largest Color Value in a Directed Graph Hard
1863 Sum of All Subset XOR Totals Easy
1864 Minimum Number of Swaps to Make the Binary String Alternating Medium
1865 Finding Pairs With a Certain Sum Medium
1866 Number of Ways to Rearrange Sticks With K Sticks Visible Hard
1871 Jump Game VII Medium
1877 Minimize Maximum Pair Sum in Array Medium
1879 Minimum XOR Sum of Two Arrays Hard
1901 Find a Peak Element II Medium
1903 Largest Odd Number in String Easy
1904 The Number of Full Rounds You Have Played Medium
1905 Count Sub Islands Medium
1906 Minimum Absolute Difference Queries Medium
1915 Number of Wonderful Substrings Medium
1962 Remove Stones to Minimize the Total Medium
1963 Minimum Number of Swaps to Make the String Balanced Medium
1968 Array With Elements Not Equal to Average of Neighbors Medium
1969 Minimum Non-Zero Product of the Array Elements Medium
1970 Last Day Where You Can Still Cross Hard
2054 Two Best Non-Overlapping Events Medium
2055 Plates Between Candles Medium
2058 Find the Minimum and Maximum Number of Nodes Between Critical Points Medium
2059 Minimum Operations to Convert Number Medium
2060 Check if an Original String Exists Given Two Encoded Strings Hard
2063 Vowels of All Substrings Medium
2064 Minimized Maximum of Products Distributed to Any Store Medium
2065 Maximum Path Quality of a Graph Hard
2070 Most Beautiful Item for Each Query Medium
2074 Reverse Nodes in Even Length Groups Medium
2075 Decode the Slanted Ciphertext Medium
2076 Process Restricted Friend Requests Hard
2080 Range Frequency Queries Medium
2081 Sum of k-Mirror Numbers Hard
2086 Minimum Number of Buckets Required to Collect Rainwater from Houses Medium
2087 Minimum Cost Homecoming of a Robot in a Grid Medium
2088 Count Fertile Pyramids in a Land Hard
2091 Removing Minimum and Maximum From Array Medium
2095 Delete the Middle Node of a Linked List Medium
2096 Step-By-Step Directions From a Binary Tree Node to Another Medium
2097 Valid Arrangement of Pairs Hard
2104 Sum of Subarray Ranges Medium
2105 Watering Plants II Medium
2106 Maximum Fruits Harvested After at Most K Steps Hard
2109 Adding Spaces to a String Medium
2110 Number of Smooth Descent Periods of a Stock Medium
2111 Minimum Operations to Make the Array K-Increasing Hard
2115 Find All Possible Recipes from Given Supplies Medium
2116 Check if a Parentheses String Can Be Valid Medium
2117 Abbreviating the Product of a Range Hard
2120 Execution of All Suffix Instructions Staying in a Grid Medium
2121 Intervals Between Identical Elements Medium
2122 Recover the Original Array Hard
2125 Number of Laser Beams in a Bank Medium
2126 Destroying Asteroids Medium
2127 Maximum Employees to Be Invited to a Meeting Hard
2130 Capitalize the Title Easy
2130 Maximum Twin Sum of a Linked List Medium
2131 Longest Palindrome by Concatenating Two Letter Words Medium
2132 Stamping the Grid Hard
2134 Minimum Swaps to Group All 1's Together II Medium
2135 Count Words Obtained After Adding a Letter Medium
2136 Earliest Possible Day of Full Bloom Hard
2139 Minimum Moves to Reach Target Score Medium
2140 Solving Questions With Brainpower Medium
2141 Maximum Running Time of N Computers Hard
2144 Minimum Cost of Buying Candies With Discount Easy
2145 Count the Hidden Sequences Medium
2146 K Highest Ranked Items Within a Price Range Medium
2147 Number of Ways to Divide a Long Corridor Hard
2148 Count Elements With Strictly Smaller and Greater Elements Easy
2149 Rearrange Array Elements by Sign Medium
2150 Find All Lonely Numbers in the Array Medium
2151 Maximum Good People Based on Statements Hard
2154 Keep Multiplying Found Values by Two Easy
2155 All Divisions With the Highest Score of a Binary Array Medium
2156 Find Substring With Given Hash Value Hard
2157 Groups of Strings Hard
2161 Partition Array According to Given Pivot Medium
2162 Minimum Cost to Set Cooking Time Medium
2163 Minimum Difference in Sums After Removal of Elements Hard
2164 Sort Even and Odd Indices Independently Easy
2165 Smallest Value of the Rearranged Number Medium
2166 Design Bitset Medium
2167 Minimum Time to Remove All Cars Containing Illegal Goods Hard
2169 Count Operations to Obtain Zero Easy
2170 Minimum Operations to Make the Array Alternating Medium
2171 Removing Minimum Number of Magic Beans Medium
2172 Maximum AND Sum of Array Hard
2177 Find Three Consecutive Integers That Sum to a Given Number Medium
2178 Maximum Split of Positive Even Integers Medium
2179 Count Good Triplets Hard
2410 Maximum Matching of Players With Trainers Medium
2411 Smallest Subarrays With Maximum Bitwise OR Medium
2412 Minimum Money Required Before Transactions Hard
2438 Range Product Queries of Powers Medium

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