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Submission #860729

# Submission time Handle Problem Language Result Execution time Memory
860729 2023-10-14T04:26:59 Z E869120 Boarding Passes (BOI22_passes) C++14
5 / 100
 2 ms 604 KB 
#include <bits/stdc++.h>
using namespace std;

int N;
string S;

int main() {
    // Step 1. Input
    cin >> S;
    N = S.size();

    // Step 2. Calculate
    double Answer = 0.0;
    for (int i = 0; i < N; i++) {
        Answer += 0.5 * min(i, N - 1 - i);
    }
    printf("%.12lf\n", Answer);
    return 0;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB found '100800.5000000000', expected '100800.5000000000', error '0.0000000000'
2 Correct 0 ms 348 KB found '0.0000000000', expected '0.0000000000', error '-0.0000000000'
3 Correct 0 ms 348 KB found '0.0000000000', expected '0.0000000000', error '-0.0000000000'
4 Correct 0 ms 348 KB found '1.0000000000', expected '1.0000000000', error '0.0000000000'
5 Correct 0 ms 344 KB found '124002.0000000000', expected '124002.0000000000', error '0.0000000000'
6 Correct 2 ms 604 KB found '772893586.0000000000', expected '772893586.0000000000', error '0.0000000000'
7 Correct 2 ms 576 KB found '1100977812.5000000000', expected '1100977812.5000000000', error '0.0000000000'
8 Correct 2 ms 604 KB found '1249950000.5000000000', expected '1249950000.5000000000', error '0.0000000000'
9 Correct 2 ms 604 KB found '1249975000.0000000000', expected '1249975000.0000000000', error '0.0000000000'

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB 1st numbers differ - expected: '1.0000000000', found: '3.0000000000', error = '2.0000000000'
2 Halted 0 ms 0 KB -

Subtask #3
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 348 KB 1st numbers differ - expected: '1.0000000000', found: '3.0000000000', error = '2.0000000000'
2 Halted 0 ms 0 KB -

Subtask #4
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB found '100800.5000000000', expected '100800.5000000000', error '0.0000000000'
2 Correct 0 ms 348 KB found '0.0000000000', expected '0.0000000000', error '-0.0000000000'
3 Correct 0 ms 348 KB found '0.0000000000', expected '0.0000000000', error '-0.0000000000'
4 Correct 0 ms 348 KB found '1.0000000000', expected '1.0000000000', error '0.0000000000'
5 Correct 0 ms 344 KB found '124002.0000000000', expected '124002.0000000000', error '0.0000000000'
6 Correct 2 ms 604 KB found '772893586.0000000000', expected '772893586.0000000000', error '0.0000000000'
7 Correct 2 ms 576 KB found '1100977812.5000000000', expected '1100977812.5000000000', error '0.0000000000'
8 Correct 2 ms 604 KB found '1249950000.5000000000', expected '1249950000.5000000000', error '0.0000000000'
9 Correct 2 ms 604 KB found '1249975000.0000000000', expected '1249975000.0000000000', error '0.0000000000'
10 Incorrect 0 ms 348 KB 1st numbers differ - expected: '1.0000000000', found: '3.0000000000', error = '2.0000000000'
11 Halted 0 ms 0 KB -