7-57 Find integer (10 points)

7-57 Find integer (10 points)

#include <cstdio>

int main(){
    int n,x;
    int k=-1;
    scanf("%d%d",&n,&x);
    int a[n];
    for(int i=0;i<n;i++)
    {
    	scanf("%d",&a[i]);
    	if(a[i]==x)
    	{
    		k=i;
    	}
    }
    if(k==-1)
    {
    	printf("NO Found!\n");
    }
    else{
    	printf("%d\n",k);
    }
    return 0;
}