upload

1/D.cpp

@@ -0,0 +1,33 @@
+#include <iostream>
+
+
+int main() {
+    int n, m, q, counter = 0;
+    std::cin >> n >> m >> q;
+    bool** episodes = new bool* [n];
+    for (int i = 0; i < n; ++i) {
+        episodes[i] = new bool[m];
+    }
+
+    for (int i = 0; i < q; ++i) {
+        int e, s;
+        std::cin >> e >> s;
+
+        if (!episodes[s - 1][e - 1]) {
+            episodes[s - 1][e - 1] = true;
+            ++counter;
+        }
+    }
+
+    std::cout << n*m - counter << "\n";
+
+    for (int s = 0; s < n; ++s) {
+        for (int e = 0; e < m; ++e) {
+            if (!episodes[s][e]) {
+                std::cout << e + 1 << " " << s + 1 << "\n";
+            }
+        }
+    }
+    delete[] episodes;
+    return 0;
+}