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Submission #945455

# Submission time Handle Problem Language Result Execution time Memory
945455 2024-03-13T20:14:25 Z nolqf Balloons (CEOI11_bal) C++14
10 / 100
 152 ms 8408 KB 
#include <bits/stdc++.h>

using namespace std;
using ld = long double;

const int DIM = 2e5 + 5;

ld x[DIM], r[DIM];

inline ld get( int i, int j ) {
  return (x[i] - x[j]) * (x[i] - x[j]) / (4.0 * r[j]);
}

int main() {
  ios_base::sync_with_stdio(0);
  cin.tie(0);
  int n;
  ld aux;

  cin >> n;
  for ( int i = 1; i <= n; ++i ) {
	cin >> x[i] >> r[i];
  }
  vector<int> stk;
  for ( int i = 1; i <= n; ++i ) {
	while ( stk.size() && r[i] >= (aux = get(i, stk.back())) ) {
	  r[i] = aux;
	  stk.pop_back();
	}
	if ( stk.size() ) {
	  r[i] = min(r[i], get(i, stk.back()));
	}
	stk.push_back(i);
  }

  cout << fixed << setprecision(3);
  for ( int i = 1; i <= n; ++i ) {
	cout << r[i] << "\n";
  }
  return 0;
}

Subtask #1
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 2396 KB 5th numbers differ - expected: '17.1630000000', found: '99.0000000000', error = '81.8370000000'
2 Halted 0 ms 0 KB -

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 2396 KB 2 numbers

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 2396 KB 3rd numbers differ - expected: '0.0420000000', found: '3.0000000000', error = '2.9580000000'
2 Halted 0 ms 0 KB -

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 5 ms 2396 KB 114th numbers differ - expected: '39.0180000000', found: '56.0000000000', error = '16.9820000000'
2 Halted 0 ms 0 KB -

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 17 ms 4700 KB 196th numbers differ - expected: '100.7250000000', found: '111.0000000000', error = '10.2750000000'
2 Halted 0 ms 0 KB -

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 39 ms 5200 KB 13945th numbers differ - expected: '0.0140000000', found: '7.0000000000', error = '6.9860000000'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 79 ms 6220 KB 7236th numbers differ - expected: '0.0070000000', found: '7.0000000000', error = '6.9930000000'
2 Halted 0 ms 0 KB -

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 98 ms 6512 KB 4645th numbers differ - expected: '0.0260000000', found: '8.0000000000', error = '7.9740000000'
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 123 ms 7568 KB 1730th numbers differ - expected: '5.6890000000', found: '6.8060000000', error = '1.1170000000'
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 152 ms 8408 KB 2716th numbers differ - expected: '22.1690000000', found: '43.0000000000', error = '20.8310000000'
2 Halted 0 ms 0 KB -