View Code of Problem 7

#include<stdio.h>
int main()
{
	int t,n,i,j,k,a[100001],b[10001],c[10001],m,o,p,flag;
	char op;
	scanf("%d",&t);
	for(i=0;i<t;i++)
	{
		scanf("%d",&n);
		for(j=0;j<n;j++)//n个等式
		{
			scanf("%d%c%d",&a[j],&op,&b[j]);
		}
		scanf("%d",&m);
		for(k=0;k<m;k++)//m个数
		{
			scanf("%d",&c[k]);
		}

		
		for(p=0;p<m;p++)
		{
			for(o=0;o<n;o++)
			{
				if(c[p]==a[o])
				{
					printf("%d\n",b[o]);
					flag=1;
					break;
				}
			}
			for(o=0;o<n;o++)
			{
				if(c[p]==b[o])
				{
					printf("%d\n",a[o]);
					flag=1;
					break;
				}
			}
			if(flag!=1)
				printf("UNKNOW\n");
		}
		printf("\n");

	}
	return 0;
}

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