#include<stdio.h>#define N 5intsearch(int a[N],int n){int low=0,high=N-1,mid,flag=0;while(low<=high){
mid=(low+high)/2;if(*(a+mid)==n){
flag=mid+1;break;}elseif(n>*(a+mid)){
low=mid+1;}else high=mid-1;}if(flag)return flag;elsereturn0;}main(){int a[N],n,i;int*p=a;printf("input these numbers in order\n");for(i=0;i<5;i++){scanf("%d",&a[i]);}printf("input what you want\n");scanf("%d",&n);int flag=search(p,n);if(flag)printf(" 位置:%d",flag);elseprintf("not find\n");}