顺序查找

#include<stdio.h>

int orderSearch(int a[],int key,int m)
{
for(int i=0;i<m;i++)
if(a[i]==key)
{
return i+1;
}
return 0;
}
int main()
{
int key;
int a[5]={2,1,4,6,3};
int size=sizeof(a)/sizeof(a[0]);
printf("please input the number which you want to search:\n");
scanf("%d",&key);
int ret=orderSearch(a,key,size);
if(ret)
{
printf("The number %d is in %d position\n",key,ret);
}
else
{
printf("The number %d is not exist\n");
}
return 0;
}