Shafaet

//Programming Contest Template
//Shafaet Ashraf 
#include <bits/stdc++.h>

#define stream istringstream
#define rep(i,n) for(int i=0; i<(int)n; i++)
#define repv(i,n) for(int i=n-1; i>=0; i--)
#define repl(i,n) for(int i=1; i<=(int)n; i++)
#define replv(i,n) for(int i=n; i>=1; i--)
#define foreach(i,n) for(__typeof((n).begin())i =(n).begin();i!=(n).end();i++)

Shafaet

list=["user1",user2"]

list.each do |name|
h=Hacker.find_by_username(name)
m=Message.where(receiver_id: h.id)
puts h.id,m
end
#it will output only hackerid's if nobody sent any messages, otherwise it will print list of messages too

Shafaet

Welcome to HackerRank DSL (Domain Specific Language) Documentation! You can use our the DSL to generate code stubs that read test case data from standard input in hackerrank challenges.

• Datatypes Supported
• Reading Variables
• Writing Loops
• Reading 1-D Array
• Reading 2-D Array