#include<iostream>
#include<stdlib.h>
using namespace std;
int compare(const void*a,const void *b)
{
return *((int*)a)-*((int*)b);
}
int main()
{
int ar[100],i;
for(int i=0;i<100;i++)
ar[i]=i+10;
i=22;
int *p;
if(p=(int*)bsearch((void*)&i,(void*)ar,100,sizeof(int),compare))
cout<<i<<' '<<*p<<endl;
else
cout<<"error!"<<endl;
cout<<"第"<<p-ar<<"个数"<<endl;
return 0;
}