1 files changed, 0 insertions, 48 deletions
diff --git a/works/solutions/acwing/1209.cpp b/works/solutions/acwing/1209.cpp
deleted file mode 100644
index 3f3ff7a..0000000
--- a/works/solutions/acwing/1209.cpp
+++ /dev/null
@@ -1,48 +0,0 @@
-#include <array>
-#include <iostream>
-#include <vector>
-
-int number;
-int count = 0;
-std::array<bool, 10> used{false};
-std::array<int, 9> current;
-
-int calc(int start, int end) {
-  int n = 0;
-  for (int i = start; i < end; i++) {
-    n *= 10;
-    n += current[i];
-  }
-  return n;
-}
-
-void dfs(int n) {
-  if (n == 9) {
-    for (int i = 1; i <= 7; i++)
-      for (int j = i + 1; j <= 8; j++) {
-        int a = calc(0, i);
-        int b = calc(i, j);
-        int c = calc(j, 9);
-        if ((number - a) * b == c) {
-          count++;
-        }
-      }
-    return;
-  }
-
-  for (int i = 1; i <= 9; i++) {
-    if (!used[i]) {
-      used[i] = true;
-      current[n] = i;
-      dfs(n + 1);
-      used[i] = false;
-    }
-  }
-}
-
-int main() {
-  std::cin >> number;
-  dfs(0);
-  std::cout << count;
-  return 0;
-}