제출 #18893

#제출 시각아이디문제언어결과실행 시간메모리
18893chan492811이상한 수열 (OJUZ10_bizarre)C++98
100 / 100
10 ms3232 KiB
#include <cstdio>

int n,m;
int ip[50010];
bool arr[2000010];

int main(){
    int i,now=0,a;
    scanf("%d",&n);
    for(i=1;i<=n;i++){
        scanf("%d",&ip[i]); ip[i]+=1000000;
        if(!arr[ip[i]]) now++; arr[ip[i]]=1;
    }
    scanf("%d",&m); now+=1000000;
    if(m<=n){ printf("%d",ip[m]-1000000); return 0; } m-=n+1;
    while(m && now<=2000005 && !arr[now]) now++,m--;
    if(now<=2000005) printf("%d",now-1000000);
    else printf("%d",now+m-1000000);
    return 0;
}
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