View Code of Problem 7

#include<stdio.h>
#include<string.h>
#include<iostream.h>
int a[100000];
int x;
int n,m;
int main()
{
	int T;
	cin>>T;
	while(T>0)
	{
		cin>>n;
		int i;
		int c,d;
		char e;
		memset(a,-1,sizeof(a));
		for(i=0;i<n;i++)
		{
			cin>>c>>e>>d;
			a[c]=d;a[d]=c;
		}
		cin>>m;
		for(i=0;i<m;i++)
		{
			cin>>x;
			if(a[x]!=-1)
		   cout<<a[x];
		   else cout<<"UNKNOW";
		   cout<<endl;
		}
		T--;
		if(T>0) cout<<endl;
	}
	return 0;
}
/*
Main.cc:3:21: fatal error: iostream.h: No such file or directory
 #include<iostream.h>
                     ^
compilation terminated.
*/

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