View Code of Problem 7

#include<iostream>

using namespace std;

int main(){
	int t;

	cin>>t;

	while(t--){
		int n;
		int numarr[10001]={0};
		cin>>n;
		for(int i=0;i<n;++i){
			int a,b;
			scanf("%d=%d",&a,&b);
			numarr[a]=b;
			numarr[b]=a;
		}
		int m;
		cin>>m; 
		int ans[m];
		for(int i=0;i<m;++i){
			int num;
			cin>>num;
			if(numarr[num]==0){
				ans[i]=-1;
			}
			else {
				ans[i]=numarr[num];
			}
		}
		for(int i=0;i<m;++i){
			if(ans[i]==-1){
				cout<<"UNKNOW";
			}
			else{
				cout<<ans[i];
			}
			cout<<endl;
		}
	}
	return 0;
}