Submission #1188527

#	Time	Username	Problem	Language	Result	Execution time	Memory
1188527		qwusha	Boarding Passes (BOI22_passes)	C++20	5 / 100	2 ms	584 KiB

passes

#include <bits/stdc++.h>
using namespace std;
#define fi first
#define se second
typedef long long ll;
typedef long double ld;
mt19937 rnd(chrono::high_resolution_clock::now().time_since_epoch().count());
#define int long long
#define ld long double

signed main() {
    string s;
    cin >> s;
    int n = s.size();
    ld res = 0;
    for (int i = 0; i < n / 2; i++) {
        res += i;
    }
    for (int i = n - 1; i >= n / 2; i--) {
        res += (n - 1 - i);
    }
    res /= 2;
    cout << setprecision(15) << res << '\n';
}

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