Submission #868004

#	Time	Username	Problem	Language	Result	Execution time	Memory
868004		TAhmed33	Boarding Passes (BOI22_passes)	C++98	0 / 100	1 ms	348 KiB

passes

#include <bits/stdc++.h>
using namespace std;
typedef long double ld;
int main () {
	int n;
	cin >> n;
	ld ans = 0;
	for (int i = 2; i < n; i++) {
		ans += min(0.5 * (i - 1), 0.5 * (n - i));
	}
	cout << fixed << setprecision(3) << ans << '\n';
}

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