Description
Solutions
Solution
class Solution {
public:
int dp[101]\[101];
int uniquePaths(int m, int n) {
for(int i = 1; i<=m; i++) dp[i]\[1] = 1;
for(int i = 1; i<=n; i++) dp[1]\[i] = 1;
for(int i = 2; i<=m ; i++){
for(int j =2; j<=n ; j++){
dp[i]\[j] = dp[i-1]\[j] + dp[i]\[j-1];
}
}
return dp[m]\[n];
}
};
- 空间优化没怎么看懂;
- 【组合数学】马拦过河卒 | 潮汐朝夕