Add problem 1227.

1 files changed, 50 insertions, 0 deletions

diff --git a/acwing/1227.cpp b/acwing/1227.cpp
new file mode 100644
index 0000000..ff14be2
--- /dev/null
+++ b/acwing/1227.cpp
@@ -0,0 +1,50 @@
+#include <iostream>
+
+const int M = 1e5 + 10;
+
+int N, K;
+int H[M];
+int W[M];
+
+bool check(int l) {
+  if (l == 0)
+    return true;
+
+  int count = 0;
+
+  for (int i = 1; i <= N; i++) {
+    count += (H[i] / l) * (W[i] / l);
+    if (K <= count) {
+      return true;
+    }
+  }
+
+  return false;
+}
+
+int main() {
+  std::ios_base::sync_with_stdio(false);
+  std::cin.tie(nullptr);
+
+  std::cin >> N >> K;
+
+  for (int i = 1; i <= N; i++) {
+    std::cin >> H[i] >> W[i];
+  }
+
+  int l = 0, r = M;
+
+  while (l != r) {
+    int m = l + ((r - l + 1) / 2);
+
+    if (check(m)) {
+      l = m;
+    } else {
+      r = m - 1;
+    }
+  }
+
+  std::cout << l;
+
+  return 0;
+}