Precreation contest files

Codeforces/CodeforcesRound1037(Div3)/EGCD,Unlucky!/solution.cpp

@@ -0,0 +1,48 @@
+#include <iostream>
+#include <vector>
+
+using namespace std;
+
+void solve() {
+  int n;
+  cin >> n;
+  vector<int> pre(n), stu(n);
+  for (int &i : pre)
+    cin >> i;
+  for (int &i : stu)
+    cin >> i;
+
+  if (pre[n - 1] != stu[0]) {
+    cout << "NO\n";
+    return;
+  }
+
+  for (int i = 0; i < n - 1; i++) {
+    if (pre[i] < pre[i + 1]) {
+      cout << "NO\n";
+      return;
+    }
+    if (pre[i] % pre[i + 1] != 0) {
+      cout << "NO\n";
+      return;
+    }
+  }
+  for (int i = n - 1; i > 0; i--) {
+    if (stu[i] < stu[i - 1]) {
+      cout << "NO\n";
+      return;
+    }
+    if (stu[i] % stu[i - 1] != 0) {
+      cout << "NO\n";
+      return;
+    }
+  }
+  cout << "YES\n";
+}
+
+int main() {
+  int t;
+  cin >> t;
+  while (t--)
+    solve();
+}