View Code of Problem 7

#include <iostream>
#include <cstring>
#include <cstdio>
using namespace std;
int t,n,m,a[1000010][2];
int main(){
	scanf("%d",&t);
	while(t--){
		scanf("%d",&n);
		for(int i=0;i<n;i++)
			scanf("%d=%d",&a[i][0],&a[i][1]);
		cin>>m;
		while(m--){
			int x,flag=0;
			scanf("%d",&x);
			for(int i=0;i<n;i++){
				if(a[i][0]==x){
					printf("%d\n",a[i][1]);
					flag=1;
				}else if(a[i][1]==x){
					printf("%d\n",a[i][0]);
					flag=1;
				}
			}
			if(!flag)
				printf("UNKNOW\n");
		}
		printf("\n");
		memset(a,0,sizeof(a));
	}
	return 0;
}

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