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Submission #482368

# Submission time Handle Problem Language Result Execution time Memory
482368 2021-10-24T07:40:00 Z Berted Balloons (CEOI11_bal) C++14
20 / 100
 221 ms 12140 KB 
#include <iostream>
#include <stack>
#include <iomanip>
#include <vector>
#define ld long double
#define pdd pair<ld, ld>
#define fst first
#define snd second

using namespace std;

int N;
vector<pdd> S;

int main()
{
    ios :: sync_with_stdio(0); cin.tie(0);
    cin >> N;
    for (int i = 0; i < N; i++)
    {
        ld X, R; cin >> X >> R;
        while (S.size() > 1)
        {
            if ((X - S.back().fst) * (X - S.back().fst)/ (4 * S.back().snd) >= (X - S[S.size() - 2].fst) * (X - S[S.size() - 2].fst) / (4 * S[S.size() - 2].snd)) {S.pop_back();}
            else {break;}
        }
        if (S.size()) {R = min(R, (X - S.back().fst) * (X - S.back().fst)/ (4 * S.back().snd));}
        S.push_back({X, R});
        cout << fixed << setprecision(3) << R << "\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
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB 2 numbers

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 332 KB 17th numbers differ - expected: '213.0000000000', found: '234.0000000000', error = '21.0000000000'

Subtask #4
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 3 ms 452 KB 504th numbers differ - expected: '160.9360000000', found: '163.0000000000', error = '2.0640000000'

Subtask #5
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 23 ms 1868 KB 653rd numbers differ - expected: '96.2810000000', found: '123.0000000000', error = '26.7190000000'

Subtask #6
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 61 ms 3572 KB 14174th numbers differ - expected: '0.7720000000', found: '1.3710000000', error = '0.5990000000'
2 Halted 0 ms 0 KB -

Subtask #7
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 113 ms 6408 KB 7447th numbers differ - expected: '0.9750000000', found: '8.0000000000', error = '7.0250000000'

Subtask #8
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 132 ms 6528 KB 4793rd numbers differ - expected: '0.9540000000', found: '10.6220000000', error = '9.6680000000'
2 Halted 0 ms 0 KB -

Subtask #9
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 174 ms 11976 KB 1734th numbers differ - expected: '1856.0220000000', found: '1865.0000000000', error = '8.9780000000'
2 Halted 0 ms 0 KB -

Subtask #10
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 221 ms 12140 KB 2735th numbers differ - expected: '1883.4630000000', found: '1899.0000000000', error = '15.5370000000'
2 Halted 0 ms 0 KB -