题目传送门
#include <bits/stdc++.h>
using namespace std;
const int N = 1010;
int a[N][N], b[N][N];
int n, m, q;
/**
* 功能:二维差分构建
* @param x1 左上角横坐标
* @param y1 左上角纵坐标
* @param x2 右下角横坐标
* @param y2 右下角纵坐标
* @param c 值
*/
void insert(int x1, int y1, int x2, int y2, int c) {
b[x1][y1] += c;
b[x2 + 1][y1] -= c;
b[x1][y2 + 1] -= c;
b[x2 + 1][y2 + 1] += c;
}
int main() {
cin >> n >> m >> q;
//读入并构建
for (int i = 1; i <= n; i++)
for (int j = 1; j <= m; j++)
cin >> a[i][j], insert(i, j, i, j, a[i][j]);
//q次区域变化
while (q--) {
int x1, y1, x2, y2, c;
cin >> x1 >> y1 >> x2 >> y2 >> c;
insert(x1, y1, x2, y2, c);
}
//还原二维数组
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= m; j++) {//二维前缀和公式
a[i][j] = a[i - 1][j] + a[i][j - 1] - a[i - 1][j - 1]
+ b[i][j];
printf("%d ", a[i][j]);
}
printf("\n");
}
return 0;
}