Submission #823821

#	Time	Username	Problem	Language	Result	Execution time	Memory
823821		peteza	Boarding Passes (BOI22_passes)	C++14	5 / 100	2 ms	468 KiB

passes

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

string s(899, 'A');

double f(int len) {
    return 1.00*(len/2)*(len/2-1)/2;
}

int main() {
    cin >> s;
    cout << fixed << setprecision(3);
    if(s.size() & 1) {
        cout << (f(s.size()-1) + f(s.size()+1))/2.00;
    } else {
        cout << f(s.size());
    }
}

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