P2956 [USACO09OCT]The Robot Plow G

R52218903

Luogu/problem/P2956/P2956.cpp

@@ -0,0 +1,27 @@
+#include <bits/stdc++.h>
+
+using namespace std;
+
+bool vis[250][250];
+
+int main() {
+    int x, y, p, x1, x2, y1, y2, ans = 0;
+    cin >> x >> y >> p;
+    for (int i = 0; i < p; i++) {
+        cin >> x1 >> y1 >> x2 >> y2;
+        for (int j = x1; j <= x2; j++) {
+            for (int k = y1; k <= y2; k++) {
+                vis[j][k] = true;
+            }
+        }
+    }
+    for (int i = 1; i <= x; i++) {
+        for (int j = 1; j <= y; j++) {
+            if (vis[i][j]) {
+                ans++;
+            }
+        }
+    }
+    cout << ans << endl;
+    return 0;
+}