题解 | #不同路径的数目(一)#
不同路径的数目(一)
http://www.nowcoder.com/practice/166eaff8439d4cd898e3ba933fbc6358
dp
# # 代码中的类名、方法名、参数名已经指定,请勿修改,直接返回方法规定的值即可 # # # @param m int整型 # @param n int整型 # @return int整型 # class Solution: def uniquePaths(self , m: int, n: int) -> int: # write code here dp = [[0]*n for _ in range(m)] for i in range(m): dp[i][0] = 1 for j in range(n): dp[0][j] = 1 for i in range(1,m): for j in range(1,n): dp[i][j] = dp[i-1][j]+dp[i][j-1] return dp[m-1][n-1]