8 files changed, 117 insertions, 0 deletions
diff --git a/codeforces/LuckyDivision/main b/codeforces/LuckyDivision/main
new file mode 100755
index 0000000..e4df5c3
--- /dev/null
+++ b/codeforces/LuckyDivision/main
diff --git a/codeforces/LuckyDivision/main.cpp b/codeforces/LuckyDivision/main.cpp
new file mode 100644
index 0000000..3f63c4b
--- /dev/null
+++ b/codeforces/LuckyDivision/main.cpp
@@ -0,0 +1,111 @@
+#include<bits/stdc++.h>
+using namespace std;
+
+using ll = long long;
+using pi = pair<int, int>;
+using vpi = vector<pi>;
+using vi = vector<int>;
+using vll = vector<long long>;
+using mpii = map<int, int>;
+using mpll = map<ll, ll>;
+using db = long double;
+
+#define pb push_back 
+#define all(x) (x).begin(), (x).end()
+#define rall(x) (x).rbegin(), (x).rend()
+#define lb lower_bound
+#define ub upper_bound
+
+const int MOD = (int)1e9 + 7;
+const db PI = acos((db)-1);
+const int dx[4]{1, 0, -1, 0};
+const int dy[4]{0, 1, 0, -1};
+
+//pretty printing
+template<typename K, typename V>
+void printm(const map<K, V> &mp) {
+  cerr << "{" << endl;
+  for (auto p : mp) {
+    cerr << "  { " << p.first << " : " << p.second << " }\n";
+  }
+  cerr << "}" << endl;
+}
+template<typename T>
+void printv(const vector<T> &v) {
+  cerr << "[";
+  for (int i = 0; i < v.size(); i++) {
+    if (i == v.size() - 1) {
+      cerr << v[i];
+    } else {
+      cerr << v[i] << ", ";
+    }
+  }
+  cerr << "]\n";
+}
+
+template<typename T>
+void printvv(const vector<vector<T>> &v) {
+  cerr << "[\n";
+  for (auto &vec : v) {
+    cout << "  ";
+    printv(vec);
+  }
+  cerr << "]\n";
+}
+void print() {
+  cerr << "\n";
+}
+
+template<typename T, typename... TS>
+void print(T val, TS... vals) {
+  cerr << val << " ";
+  print(vals...);
+}
+
+
+/* stuff you should look for:
+  ---------------------------
+   * special cases (n=1?)
+   * int overflow, array bounds
+   * do smth instead of nothing and stay organized
+   * WRITE STUFF DOWN
+   * DON'T GET STUCK ON ONE APPROACH
+ */
+
+bool isLucky(int n) {
+  while(n) {
+    int num = n % 10;
+    if (num != 7 && num != 4) {
+      return false;
+    }
+    n /= 10;
+  }
+  return true;
+}
+
+string solve() {
+  int n;
+  cin >> n;
+  vi luckyNumbers;
+  for (int i = 1; i <= 1000; i++) {
+    if (isLucky(i)) {
+      luckyNumbers.pb(i);
+    }
+  }
+  int i = 0;
+  while(luckyNumbers[i] <= n) {
+    if (n % luckyNumbers[i] == 0) {
+      return "YES";
+    } 
+    i++;
+  }
+  return "NO";
+}
+
+int main () {
+	ios_base::sync_with_stdio(false);
+	cin.tie(NULL);
+  cout << solve() << '\n';
+}
+
+
diff --git a/codeforces/LuckyDivision/main_input0.txt b/codeforces/LuckyDivision/main_input0.txt
new file mode 100644
index 0000000..abac1ea
--- /dev/null
+++ b/codeforces/LuckyDivision/main_input0.txt
@@ -0,0 +1 @@
+47
diff --git a/codeforces/LuckyDivision/main_input1.txt b/codeforces/LuckyDivision/main_input1.txt
new file mode 100644
index 0000000..b6a7d89
--- /dev/null
+++ b/codeforces/LuckyDivision/main_input1.txt
@@ -0,0 +1 @@
+16
diff --git a/codeforces/LuckyDivision/main_input2.txt b/codeforces/LuckyDivision/main_input2.txt
new file mode 100644
index 0000000..8e14edc
--- /dev/null
+++ b/codeforces/LuckyDivision/main_input2.txt
@@ -0,0 +1 @@
+78
diff --git a/codeforces/LuckyDivision/main_output0.txt b/codeforces/LuckyDivision/main_output0.txt
new file mode 100644
index 0000000..f033a50
--- /dev/null
+++ b/codeforces/LuckyDivision/main_output0.txt
@@ -0,0 +1 @@
+YES
diff --git a/codeforces/LuckyDivision/main_output1.txt b/codeforces/LuckyDivision/main_output1.txt
new file mode 100644
index 0000000..f033a50
--- /dev/null
+++ b/codeforces/LuckyDivision/main_output1.txt
@@ -0,0 +1 @@
+YES
diff --git a/codeforces/LuckyDivision/main_output2.txt b/codeforces/LuckyDivision/main_output2.txt
new file mode 100644
index 0000000..5e35d1b
--- /dev/null
+++ b/codeforces/LuckyDivision/main_output2.txt
@@ -0,0 +1 @@
+NO