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890天前#include<stdio.h> |
int main(void) |
{ |
int arr[]={0,1,2,3,14,15,16,27,28,29},left,right,key,flag,mid; |
printf("Please input the number you want to search:\t"); |
scanf("%d",&key); |
left=0; |
right=9; |
while(left<=right) |
{ |
mid=(left+right)/2; |
if(arr[mid]==key) |
{ |
flag=1; |
break; |
} |
else |
if(key>arr[mid]) |
{ |
left=mid+1; |
} |
else |
{ |
right=mid-1; |
} |
} |
if(flag==1) |
{ |
printf("The number %d is arr[%d] in the array.",key,mid); |
} |
else |
{ |
printf("There is no %d in the array.\n",key); |
} |
return 0; |
} |
by: 发表于：2017-08-15 10:52:45 顶(0) | 踩(0) 回复
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