Submission #1098904

#	Time	Username	Problem	Language	Result	Execution time	Memory
1098904		ohad	Boarding Passes (BOI22_passes)	C++14	0 / 100	1 ms	348 KiB

passes

#include <iostream>
#include <string>
using namespace std;
typedef long long ll;

int main() {
	string a;
	cin >> a;
	ll size = a.length();
	if (size % 2 == 0)
		cout << (size / 2 * (size / 2 - 1)) / 2;
	else
	{
		cout << (size / 2 * (size / 2 - 1)) / 4 + ((size / 2 + 1) * (size / 2)) / 4;
	}
}

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