题解 | #找x#

#include<stdio.h>
#define maxsize 200
int main() {
    int n, a[maxsize];
    while ( scanf("%d", &n) != EOF) {
        int x, i;
        for (i = 0; i < n; i++)
            scanf("%d", &a[i]);
        scanf("%d", &x);
        for ( i = 0; i < n; i++)
            if (a[i] == x) {
                printf("%d", i);
                break;
            }
        if (n == i)
            printf("-1");

    }


    return 0;

}