2024每日刷题(116)
Leetcode—64. 最小路径和
实现代码
class Solution {
public:int minPathSum(vector<vector<int>>& grid) {int m = grid.size();int n = grid[0].size();vector<vector<int>> dp(m + 1, vector<int>(n + 1, -1));for(int i = 1; i <= m; i++) {for(int j = 1; j <= n; j++) {if(dp[i - 1][j] < 0 && dp[i][j - 1] < 0) {dp[i][j] = grid[i - 1][j - 1];} else if(dp[i - 1][j] < 0) {dp[i][j] = dp[i][j - 1] + grid[i - 1][j - 1];} else if(dp[i][j - 1] < 0) {dp[i][j] = dp[i - 1][j] + grid[i - 1][j - 1];} else {dp[i][j] = min(dp[i][j - 1], dp[i - 1][j]) + grid[i - 1][j - 1];}}}return dp[m][n];}
};
运行结果
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