제출 #414527

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
414527		fahimcp495	Balloons (CEOI11_bal)	C++17	10 / 100	207 ms	7712 KiB

bal

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

int main(){
  ios::sync_with_stdio(0), cin.tie(0);
  
  int n;  cin >> n;
  int x[n], r[n];
  for (int i = 0; i < n; ++i){
    cin >> x[i] >> r[i];
  }
  stack<int> st;
  double rr[n];
  for (int i = 0; i < n; ++i){
    while (!st.empty()) {
      int dx = x[i]-x[st.top()];
      rr[i] = min(1.0*r[i], 1ll*dx*dx/(4*rr[st.top()]));
      if (rr[i] >= rr[st.top()]) {
        st.pop();
      } else  break;
    }
    if (st.empty())  rr[i] = r[i];
    else {
      int dx = x[i]-x[st.top()];
      rr[i] = min(1.0*r[i], 1ll*dx*dx/(4*rr[st.top()]));
    }
    st.push(i);
  }

  cout << fixed << setprecision(3);
  for (int i = 0; i < n; ++i){
    cout << rr[i] << "\n";
  }
  
  return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 0 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10