'commit'

TangDou/AcWing/Test/796.cpp

@@ -0,0 +1,36 @@
+#include <bits/stdc++.h>
+using namespace std;
+const int N = 1010;
+int a[N][N];
+int s[N][N];
+
+int main() {
+    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];
+            s[i][j] = s[i - 1][j] + s[i][j - 1] - s[i - 1][j - 1] + a[i][j];
+        }
+
+    while (q--) {
+        int x1, y1, x2, y2;
+        cin >> x1 >> y1 >> x2 >> y2;
+        printf("%d\n", s[x2][y2] - s[x1 - 1][y2] - s[x2][y1 - 1] + s[x1 - 1][y1 - 1]);
+    }
+    return 0;
+/*
+输入样例：
+3 4 3
+1 7 2 4
+3 6 2 8
+2 1 2 3
+1 1 2 2
+2 1 3 4
+1 3 3 4
+输出样例：
+17
+27
+21
+    */
+}