二分查找(递归与非递归)

#include <stdlib.h> #include <stdio.h> //二分查找非递归 int Binary_Search(int list[],int key,int length){ int low=0,high=length-1; while (low<=high){ int mid=(high+low)/2; if (list[mid]==key) return ++mid; else if (list[mid]>key) high=mid-1; else if (list[mid]<key) low=mid+1; } return -1; } int main(){ int list[10]={1,3,5,6,7,8,9,10,11,19}; int number=Binary_Search(list,10,10); printf("%d",number); return 0; }

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