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Submission #414527

# Submission time Handle Problem Language Result Execution time Memory
414527 2021-05-30T15:12:55 Z fahimcp495 Balloons (CEOI11_bal) C++17
10 / 100
 207 ms 7712 KB 
#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
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB 10 numbers

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB 2nd numbers differ - expected: '252735385.4379999936', found: '1000000000.0000000000', error = '747264614.5620000362'

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB 6th numbers differ - expected: '213.0000000000', found: '238.0000000000', error = '25.0000000000'

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 332 KB 79th numbers differ - expected: '36.0070000000', found: '2766.0000000000', error = '2729.9930000000'

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 20 ms 968 KB 137th numbers differ - expected: '67.1010000000', found: '3129.0000000000', error = '3061.8990000000'

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 50 ms 2200 KB 250th numbers differ - expected: '15134.0000000000', found: '18307.0000000000', error = '3173.0000000000'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 102 ms 4124 KB 162nd numbers differ - expected: '7765.0000000000', found: '14571.0000000000', error = '6806.0000000000'

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 105 ms 4740 KB 510th numbers differ - expected: '4505.0010000000', found: '13465.0000000000', error = '8959.9990000000'
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 138 ms 6344 KB 161st numbers differ - expected: '1703.0000000000', found: '4036.0000000000', error = '2333.0000000000'
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 207 ms 7712 KB 248th numbers differ - expected: '2694.0020000000', found: '8658.0000000000', error = '5963.9980000000'
2 Halted 0 ms 0 KB -