Submission #414538

#	Time	Username	Problem	Language	Result	Execution time	Memory
414538		fahimcp495	Balloons (CEOI11_bal)	C++17	100 / 100	194 ms	7768 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];
  double r[n];
  for (int i = 0; i < n; ++i){
    cin >> x[i] >> r[i];
  }
  stack<int> st;
  for (int i = 0; i < n; ++i){
    while (!st.empty()) {
      int dx = x[i]-x[st.top()];
      r[i] = min(r[i], 1.0*dx*dx/(4*r[st.top()]));
      if (r[i] >= r[st.top()]) {
        st.pop();
      } else  break;
    }
    st.push(i);
  }

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

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