#include <iostream>
using namespace std;
template <class T>
int seqSearch(T list[], int n, T key)
{
for(int i=0;i < n;i++)
if (list[i] == key)
return i;
return -1;
}
int main()
{
int i, n;
int data1[]={1,3,5,7,9,11,13,15,17,19,2,4,6,8,10,12,14,16,18,20};
cout << "输入想查找的数字(1~20)：";
cin >> n;
cout << "数据为：" << endl;
for(i=0;i<20;i++)
cout << data1[i] << " ";
cout << endl;
i = seqSearch ( data1 , 20 , n );
if (i<0)
cout << "没有找到数字" << n << endl;
else
cout << n << "是第" << i+1 << "个数字" << endl;
return 0;
}
