题解 | 单组_二维数组
单组_二维数组
https://www.nowcoder.com/practice/4df606b6c3764d9c969f8759c8a4807b
#include<bits/stdc++.h>
using namespace std;
int main() {
vector<vector<int>>nums;
int n, m;
long long answer = 0;
cin >> n >> m;
for (int i= 0; i < n ; i++) {
vector<int>row;
for(int j=0;j<m;j++){
int num;
cin>>num;
row.push_back(num);
}
nums.push_back(row);
}
for (int i = 0; i < n; i++) {
for (int j = 0; j <m; j++) {
answer += nums[i][j];
}
}
cout<<answer<<endl;
return 0;
}
左边刷题右边 chat 效果很好