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python/TangDou/AcWing/PrefixAndDifference/Study.cpp

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2025-08-30 18:35:01 +08:00
#include <bits/stdc++.h>
using namespace std;
const int N = 1010;
int a[N][N], b[N][N];
int n, m, q;
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;
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]);
while (q--) {
int x1, y1, x2, y2,c;
cin >> x1 >> y1 >> x2 >> y2>>c;
insert(x1, y1, x2, y2, c);
}
for (int i = 1; i <= n; i++) {
for (int j = 1; j <= m; j++) {
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;
}