《二维差分》

#include <bits/stdc++.h>

using namespace std;

const int N = 1010;

int a[N][N], b[N][N];

void insert(int x1, int y1, int x2, int y2, int c)
{
    b[x1][y1] += c;
    b[x1][y2 + 1] -= c;
    b[x2 + 1][y1] -= c;
    b[x2 + 1][y2 + 1] += c;
}

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    
    int n, m, q;
    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 ++)
        {
            b[i][j] += b[i][j - 1] + b[i - 1][j] - b[i - 1][j - 1];
            cout << b[i][j] << ' ';
        }
        cout << endl;
    }
    
    return 0;
}