#include <stdio.h>
int main () {
    int a[10]={0,23,56,6,87,24,16,19,21,29};
    printf("请输要查找的值：");
    int k;
    scanf("%d",&k);
    a[0]=k;
    int i=9;
    while(a[i]!=k)
        i--;
    printf("%d所在的下标是%d\n",k,i);
    return 0;                                                                                                                
}