문제

링크

풀이

#include <algorithm>
#include <iostream>
#include <vector>
using namespace std;
 
void solve(void) {
  int n, m; cin >> n >> m;
 
  vector<int> cnt(m, 0);
  while (n--) {
    int x; cin >> x;
    cnt[--x]++;
  }
  cout << *max_element(cnt.begin(), cnt.end());
}
 
int main(void) {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
 
  solve();
  return 0;
}