Submission #603939

#	Time	Username	Problem	Language	Result	Execution time	Memory
603939		MohamedAhmed04	Boarding Passes (BOI22_passes)	C++14	5 / 100	1 ms	468 KiB

passes

#include <bits/stdc++.h>

using namespace std ;

const int MAX = 1e5 + 10 ;

int arr[MAX] ;
int n ;

string s ;

long double calc(int x)
{
	long double sum = 0 ;
	for(int i = 0 ; i < x ; ++i)
		sum += 0.5 * i ;
	return sum ;
}

int main()
{
	ios_base::sync_with_stdio(0) ;
	cin.tie(0) ;
	cin>>s ;
	n = s.size() ;
	long double ans = calc(n/2) + calc((n+1) / 2) ;
	return cout<<fixed<<setprecision(12)<<ans<<"\n" , 0 ;
}

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