final 修饰符
1. 应用范围 final 修饰符应该使用在类、变量以及方法上 2. final 修饰类 Note that you can also declare an entire class final. A class that is declared final cannot be subclassed. This is particularly useful, for example, when creating an imm…
62.不同路径 每一位的结果等于上方与左侧结果和 class Solution {
public:int uniquePaths(int m, int n) {vector<vector<int>> dp(m,vector(n,0));for (int i 0; i < m; i) dp[i][0] 1;for (int j 0; j < n; j) dp[0][j] 1;for (int i 1; i < m; …