Submission #714505

#	Time	Username	Problem	Language	Result	Execution time	Memory
714505		ibrahim001	Boarding Passes (BOI22_passes)	C++14	0 / 100	1 ms	296 KiB

passes

#include "bits/stdc++.h"
#define intt long long
#define pb push_back
#define endl '\n'
#define F first
#define S second
#define pii pair<int,int>
#define pll pair<intt,intt>
#define ld long double
using namespace std;
int i,j;
int main(){
    ld res = 0;
    int n;
    cin >> n;
    for ( i = 1; i <= (n+1)/2; i++ )  res += 1.0*(i-1)/2;
    for ( ; i <= n; i++ )   res += 1.0*(n-i)/2;
    cout << res << endl;
}

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