话说这么水的题为什么我都过不了啊，唔
by zsjaaaxyzgfwpl1314 @ 2023-06-05 17:55:33
@[zsjaaaxy](/user/953660)
```cpp
#include <bits/stdc++.h>
using namespace std;
int a[105][105];
int main() {
int n, m, sum = 0;
scanf("%d%d", &n, &m);
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= m; j++) {
scanf("%d", &a[i][j]);
if(i == 1 || i == n || j == 1 || j == m)
sum += a[i][j];
}
}
printf("%d", sum);
return 0;
}
```
by midsummer_zyl @ 2023-07-09 12:49:01
@[midsummer_zyl](/user/1025321)
唔 谢谢（我好蠢）
by zsjaaaxyzgfwpl1314 @ 2023-07-10 09:33:36