5.10打卡

 三、程序流程图

 四、代码实现

#include<bits/stdc++.h>
#define N 10
using namespace std;
main()
{
    int i,a[N]={-3,4,7,9,13,45,67,89,100,180}, low=0,high=N-1,mid,k=-1,m;
    printf("aÊý×éÖеÄÊý¾ÝÈçÏÂ: \n");
    for(i=0;i<N;i++)
    printf("%d ", a[i]);
    printf("\n");
    printf("Enter m: ");
    scanf("%d", &m);
    while(low<=high)
    {
        mid=(low+high)/2;
        if(m<a[mid])
        {
            high=mid-1;
        }
        else if(m>a[mid])
        {
            low = mid+1;
        }
        else
        {
            k=mid;
            break;
        }
            
    }
    if(k>=0)
        printf("m=%d,index=%d\n",m,k);
    else
        printf("Not be found!\n");
}