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Submission #824017

# Submission time Handle Problem Language Result Execution time Memory
824017 2023-08-13T11:29:42 Z ttamx Boarding Passes (BOI22_passes) C++14
0 / 100
 1 ms 212 KB 
#include<bits/stdc++.h>

using namespace std;

typedef long double ld;

const int G=20;
const int N=1e5+5;

int n,g;

int main(){
    cin.tie(nullptr)->sync_with_stdio(false);
    cout << fixed;
    int n;
    cin >> n;
    if(n%2==0){
        cout << 0.5l*(n/2)*(n/2-1);
    }else{
        cout << 0.5l*(1.l*(n/2)*(n/2-1)+(n/2));
    }
}

Subtask #1
0 / 5.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB 1st numbers differ - expected: '100800.5000000000', found: '-0.0000000000', error = '1.0000000000'
2 Halted 0 ms 0 KB -

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB 1st numbers differ - expected: '1.0000000000', found: '-0.0000000000', error = '1.0000000000'
2 Halted 0 ms 0 KB -

Subtask #3
0 / 30.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 212 KB 1st numbers differ - expected: '1.0000000000', found: '-0.0000000000', error = '1.0000000000'
2 Halted 0 ms 0 KB -

Subtask #4
0 / 40.0

# Verdict Execution time Memory Grader output
1 Incorrect 0 ms 212 KB 1st numbers differ - expected: '100800.5000000000', found: '-0.0000000000', error = '1.0000000000'
2 Halted 0 ms 0 KB -