不同路径
Pcjmy opened this issue · comments
Pcjmy commented
Li Xiangyue commented
/**
* @param {number} m
* @param {number} n
* @return {number}
*/
var uniquePaths = function(m, n) {
let dp = new Array(m).fill(0).map(() => new Array(n).fill(0))
for(let i = 0; i < m; i++){
dp[i][0] = 1
}
for(let i = 0; i < n; i++){
dp[0][i] = 1
}
for(let i = 1; i < m; i++){
for(let j = 1; j < n; j++){
dp[i][j] = dp[i - 1][j] + dp[i][j - 1]
}
}
return dp[m - 1][n - 1]
};