View Code of Problem 7

#include<stdio.h>
int main() {
	int T;
	scanf("%d",&T);
	for(int i=0;i<T;i++){
		int n;
		int lists[1000000];
		scanf("%d",&n);
		for(int j=0;j<1000000;j++){
			lists[j]=-1;
		}
		for(int j=0;j<n;j++){
			int a,b;
			scanf("%d=%d",&a,&b);
			lists[a]=b;
			lists[b]=a;
		}
		int m;
		scanf("%d",&m);
		for(int j=0;j<m;j++){
			int search; 
			scanf("%d",&search);
			if(search>999999){
				printf("UNKNOW\n");
			}else{
				if(lists[search]==-1){
					printf("UNKNOW\n");
				}else{
					printf("%d\n",lists[search]);
				}
			}
			
		}
		printf("\n");
	}
}