Submission #153861

#	Time	Username	Problem	Language	Result	Execution time	Memory
153861		AlexPascu007	Akcija (COCI15_akcija)	C++98	80 / 80	66 ms	1220 KiB

akcija

#include <iostream>
#include <algorithm>
using namespace std;
long long n,i,c[100010],s;
int main() {
    cin>>n;
    for (i=1;i<=n;i++)
        cin>>c[i];
    sort(c+1,c+n+1);
    for (i=n;i>=1;i--) {
        s+=c[i];
        if (n%3==0) {
            if (i%3==1)
                s-=c[i];
        }
        else if (n%3==1) {
            if (i%3==2)
                s-=c[i];
        }
        else if (n%3==2) {
            if (i%3==0)
                s-=c[i];
        }
    }
    cout<<s;
    return 0;
}

• Subtask 1: 80 / 80