#
# 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=[[1 for j in range(n)] for i in range(m)]
        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]