제출 #2806

#제출 시각아이디문제언어결과실행 시간메모리
2806kk1401속이기 (GA5_fake)C++98
100 / 100
0 ms1092 KiB
#include<stdio.h>
#include<algorithm>

int d[1001];

int main()
{
    int i,k,sum=0,n;
    
    scanf("%d",&n);
    for(i=1; i<=n; i++) scanf("%d",&d[i]);
    
    std::sort(d+1,d+n+1);
    
    k=sum=d[2];
    for(i=3; i<=n; i++){
        k=k^d[i];
        sum+=d[i];
    }
    if(k==d[1]) printf("%d\n",sum>d[1]?sum:d[1]);
    else printf("0\n");
    return 0;
}
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