View Code of Problem 7

#include<stdio.h>
#include<stdlib.h>
int a[1000001];
int b[1000001];
int main()
{
	int t;
	int n,m;
	int i;
	int x;
	scanf("%d",&t);
	while(t--)
	{
		scanf("%d",&n);
		for(i=0;i<n;i++)
			scanf("%d=%d",&a[i],&b[i]);
		
		scanf("%d",&m);
		while(m--)
		{
			scanf("%d",&x);
			for(i=0;i<n;i++)
			{
				if(a[i]==x)
				{
					printf("%d\n",b[i]);
					break;
				}
				else if(b[i]==x)
				{
					printf("%d\n",a[i]);
					break;
				}
			}
			if(i==n)
				printf("UNKNOW\n");
		}
		printf("\n");
		
	}

	return 0;
}