题目描述

C++ 代码

#include <iostream>
using namespace std;
const int N = 1010;

int q[N][N];
int S[N][N];

int n , m , k;

int main(){
    cin >> n >> m >> k;
    for(int i = 1;i <= n;++i){
        for(int j = 1;j <= m;++j){
            cin >> q[i][j];
            S[i][j] = S[i - 1] [j] + S[i][j - 1] - S[i - 1][j - 1] + q[i][j];
        }
    }

    while(k--){
        int x1,y1,x2,y2;
        cin >> x1 >> y1 >> x2 >> y2;
        cout << S[x2][y2] - S[x1 - 1][y2] - S[x2][y1 - 1] + S[x1 - 1][y1 - 1] << endl;
    }
    return 0;
}