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23 lines
549 B
23 lines
549 B
#include <bits/stdc++.h>
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using namespace std;
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const int N = 1010;
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int a[N][N];
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int s[N][N];
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int main() {
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int n, m, q;
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cin >> n >> m >> q;
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for (int i = 1; i <= n; i++)
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for (int j = 1; j <= m; j++) {
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cin >> a[i][j];
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s[i][j] = s[i - 1][j] + s[i][j - 1] - s[i - 1][j - 1] + a[i][j];
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}
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while (q--) {
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int x1, y1, x2, y2;
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cin >> x1 >> y1 >> x2 >> y2;
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printf("%d\n", s[x2][y2] - s[x1 - 1][y2] - s[x2][y1 - 1] + s[x1 - 1][y1 - 1]);
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}
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return 0;
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} |