and can you provide me problem link
Is this solu correct?
@codingblockscpp hey solution is looking fine but this is ICPC problem to apkocodechef pr icpc archives me hi milega waha ap submit kr skte ho ,to please look their and submit it ,so it will be more confirm to you.Happy coding 
how to return refernce of map
to avoid unnecceasarry copy
@codingblockscpp hey,just use reference variable for map just like this:
int fun(map <int,int> & m)
{
}
and while calling just pass map ,it will make changes in original map and no new copy is created.
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