Nine degrees oj-topic 1052: Find X

Title Description:

Enter a number n, then enter n values to be different, enter a value x, and output this value in the array subscript (starting from 0, if not in the array then output-1).

Input:

Test data has multiple groups, enter N (1<=n<=200), then enter n number, and then enter X.

Output:

For each set of inputs, output the results.

Sample input:

21 30

Sample output:

-1

Source:

2010 The computer Research of Harbin Institute of Technology The real problem

Answering:

Problem solving problems? to discuss the subject of discussion please visit: http://t.jobdu.com/thread-7776-1-1.html

#include <iostream>using namespace Std;int main () {    int n,i,a[201],m,k;    while (Cin>>n)    {        k=-1;        for (i=0;i<n;i++)        {            cin>>a[i];        }        cin>>m;        for (i=0;i<n;i++)        {            if (a[i]==m)            {                k=i;                cout<<k<<endl;                break;            }        }        if (i==n)            cout<<k<<endl;    }    return 0;} /**************************************************************    problem:1052    user:vhreal    language:c++    result:accepted    time:0 ms    memory:1520 kb******************************************** ********************/

Nine degrees oj-topic 1052: Find X