제출 #15735

#제출 시각아이디문제언어결과실행 시간메모리
15735cki86201이상한 수열 (OJUZ10_bizarre)C++98
100 / 100
12 ms3232 KiB
#include<stdio.h>

int p[50050], cnt;
bool chk[2000020];

int main(){
	int n, m;
	scanf("%d",&n);
	for(int i=0;i<n;i++)scanf("%d",p+i);
	scanf("%d",&m);
	if(m<=n)return printf("%d",p[m-1]) & 0;
	for(int i=0;i<n;i++){
		if(!chk[p[i]+1000000])chk[p[i]+1000000] = 1, cnt++;
	}
	int i;
	for(i=cnt+1000000;i<=2000000 && i<cnt+1000000+m-n-1;i++){
		if(chk[i])break;
	}
	if(i == 2000001)printf("%d",m-n+cnt-1);
	else printf("%d",i-1000000);
	return 0;
}
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