7-6

#include<stdio.h>

int main(void)

{

         int a[10]={1,2,3,4,5,6,7,8,9,10};

         int low,high,mid,n=10,x;

 

         printf("Enter x:");

         scanf("%d",&x);

 

         low=0;high=n-1;

         while(low<=high){

                   mid=(low+high)/2;

                   if(x==a[mid])

                            break;

                   else if(x<a[mid])

                            high=mid-1;

                   else low=mid+1;

         }

         if(low<=high)

                   printf("Index is %d\n",mid);

         else

                   printf("Not Found\n");

 

         return 0;

}#include<stdio.h>

int main(void)

{

         int a[10]={1,2,3,4,5,6,7,8,9,10};

         int low,high,mid,n=10,x;

 

         printf("Enter x:");

         scanf("%d",&x);

 

         low=0;high=n-1;

         while(low<=high){

                   mid=(low+high)/2;

                   if(x==a[mid])

                            break;

                   else if(x<a[mid])

                            high=mid-1;

                   else low=mid+1;

         }

         if(low<=high)

                   printf("Index is %d\n",mid);

         else

posted @ 2013-10-06 15:32  zhaoyang16  阅读(135)  评论(0编辑  收藏  举报