Precreation contest files

Codeforces/CodeforcesRound1034(Div3)/EMEXCount/solution.cpp

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+#include "iostream"
+#include <map>
+
+using namespace std;
+
+void solve() {
+  int n, x;
+  cin >> n;
+  map<int, int> hash_map;
+
+  for (int i = 0; i < n; i++) {
+    cin >> x;
+    if (hash_map.count(x) == 0)
+      hash_map[x] = 1;
+    else
+      hash_map[x]++;
+  }
+
+  for (int k = 0; k <= n; k++) {
+    int cur_mex = 0;
+    for (auto &i : hash_map) {
+    }
+  }
+}
+
+int main() {
+  int t;
+  cin >> t;
+  while (t--)
+    solve();
+}