View Code of Problem 7

#include <iostream>
using namespace std;

int main(){
  int T,n,a[1000000],b[1000000],m,input;
  scanf("%d",&T);
  
  while(T--){
    scanf("%d",&n);
    for(int i = 0;i < n;i ++){
      scanf("%d=%d",&a[i],&b[i]);
    }
    
    scanf("%d",&m);
    for(int j = 0;j < m;j ++){
      scanf("%d",&input);
      for(int k = 0;k < n;k ++){
        if(input == a[k]){
          printf("%d\n",b[k]);
          break;
        }
        else if(input == b[k]){
          printf("%d\n",a[k]);
          break;
        }
        else{
          printf("UNKNOW\n");
          break;
        }
      }
    }
    printf("\n");
  }
  return 0;
}