View Code of Problem 7

#include<iostream>

using namespace std;


const int maxn=100001;
int t,n,m,a[maxn]={0},b[maxn]={0},c[maxn]={0};
int main(){
	
    
    cin>>t;
    while(t--){
        cin>>n;
        char x='=';
        for (int i = 0; i < n; i++)
        {
           cin>>a[i]>>x>>b[i];
        }
        cin>>m;
        
        for ( i = 0; i < m; i++)
        { 
        	int flag=0;
            cin>>c[i];
            for (int j  = 0; j < n; j++)
            {
                if(c[i]==a[j]) {cout<<b[j]<<endl;flag=1;break;}
                 if(c[i]==b[j]) {cout<<a[j]<<endl;flag=1;break;}
             
            }
            if(flag==0) cout<<"UNKNOW"<<endl;
           
        }
        cout<<endl;
    }
    return 0;
}
/*
Main.cc: In function 'int main()':
Main.cc:21:15: error: 'i' was not declared in this scope
         for ( i = 0; i < m; i++)
               ^
*/