Submission #547317

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Source Code Expand

#include <iostream>
#include <cmath>
#include <vector>
#include <string>
#include <algorithm>
using namespace std;

int main() {
  int N, M;
  vector<int> score(M+1);
  cin >> N >> M;

  for (int i = 0; i < M+1; i++) {
    score[i] = 0;
  }

  for (int i = 0; i < N; i++) {
    int a;
    cin >> a;
    score[a] = score[a] + 1;
  }

  int x = 0;
  int x2 = -1;
  for (int i = 0; i < M+1; i++) {
    if (x < score[i]) {
      x = score[i];
      x2 = i;
    }
  }

  if (x > N / 2) {
    cout << x2 << endl;
  } else {
    cout << "?" << endl;
  }
  return 0;
}

Submission Info

Judge Result