Submission #689530

#	Time	Username	Problem	Language	Result	Execution time	Memory
689530		tvladm2009	Treasure (info1cup19_treasure)	C++17	100 / 100	4 ms	1256 KiB

treasure

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

int main() {
  ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);

  int n, k;
  string s;
  cin >> n >> k >> s;
  stack<pair<int, int>> st;
  for (int i = 1; i <= n; i++) {
    if (!st.empty()) {
      if (st.top().first == s[i - 1]) {
        st.push({s[i - 1], st.top().second + 1});
      } else {
        st.push({s[i - 1], 1});
      }
    } else {
      st.push({s[i - 1], 1});
    }
    if (st.top().second == k) {
      int cnt = 0;
      while (cnt < k) {
        st.pop();
        cnt++;
      }
    }
  }
  string ret = "";
  while (!st.empty()) {
    ret += st.top().first;
    st.pop();
  }
  reverse(ret.begin(), ret.end());
  cout << ret;
  return 0;
}

• Subtask 1: 35 / 35
• Subtask 2: 65 / 65