Submission #844719

#	Time	Username	Problem	Language	Result	Execution time	Memory
844719		MKutayBozkurt	Nivelle (COCI20_nivelle)	C++17	110 / 110	25 ms	664 KiB

nivelle

#include <bits/stdc++.h>
using namespace std;

#ifdef DEBUG
  #include "/Users/kutay/CP/templates/debug.h"
#else
  #define debug(...) void(38)
#endif

#define int long long

int32_t main() {
  ios_base::sync_with_stdio(0); cin.tie(0);
  int n; cin >> n;
  string s; cin >> s;
  double d = 1e9;
  pair<int, int> ans;
  for (int i = 1; i <= 26; i++) {
    vector<int> m(26);
    int cnt = 0, l = 0;
    for (int r = 0; r < n; r++) {
      if (m[s[r] - 'a'] == 0) cnt++;
      m[s[r] - 'a']++;
      while (cnt > i) {
        m[s[l] - 'a']--;
        if (m[s[l] - 'a'] == 0) cnt--;
        l++;
      }
      if ((double) i / (r - l + 1) < d) {
        d = (double) i / (r - l + 1);
        ans = make_pair(l, r);
      }
    }
  }
  cout << ans.first + 1 << " " << ans.second + 1 << '\n';
}

• Subtask 1: 7 / 7
• Subtask 2: 17 / 17
• Subtask 3: 13 / 13
• Subtask 4: 25 / 25
• Subtask 5: 48 / 48