UniquePath.cpp

class Solution {
public:
    int uniquePaths(int m, int n) {
        int dp[n][m];
        dp[0][0] = 1;
        if (m == 0 || n == 0) {
            return 0;
        }
        for(int i = 0; i < n; i++) {
            dp[i][0] = 1;
        }
        for (int j = 0; j < m; j++) {
            dp[0][j] = 1;
        }
        for (int i = 1; i < n; i++){
            for (int j = 1; j < m; j++){
                dp[i][j] = dp[i-1][j] + dp[i][j-1];
            }
        }
        return dp[n-1][m-1];
    }
};