Submission #598618

#	Time	Username	Problem	Language	Result	Execution time	Memory
598618		someone	Boarding Passes (BOI22_passes)	C++14	5 / 100	1 ms	596 KiB

passes

#include <bits/stdc++.h>
#define int long long
using namespace std;

const int N = 2e5 + 42, MOD = 1e9 + 7;

signed main() {
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    string str; cin >> str;
    int n = str.size();

    int k = n/2;
    cout << setprecision(20);
    if(n % 2 == 0) {
        cout << (k*(k-1))/2.0;
    } else {
        cout << (k*k)/2.0;
    }
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 25
• Subtask 3: 0 / 30
• Subtask 4: 0 / 40