九度OJ 1052 找x

#include<stdio.h>
int data[201];
int main(int argc, char *argv[])
{
    int n;
    int i;
    for(i=0;i<201;++i)
        data[i]=-2;
    while(scanf("%d",&n)!=EOF)
    {
        int tmp;
        for(i=0;i<n;++i){
            scanf("%d",&tmp);
            data[tmp]=i;
        }
        scanf("%d",&tmp);
        if(data[tmp]!=-2)
            printf("%d\n",data[tmp]);
        else
            printf("-1\n");
    }
 
    return 0;
}
 
/**************************************************************
    Problem: 1052
    User: kirchhoff
    Language: C
    Result: Accepted
    Time:0 ms
    Memory:916 kb
****************************************************************/