in line no. 35 and 36
why is it .first in both and not . second in line 36 ?
in line 68 and 71 , what does strpair and strpair+n mean?
means which element among the two , inside a pair is represented by strpair? also when we do strpair+ n then where is this n added ? to [ i ] ?
in line 77 :
swap( strpair[i] ,strpair[n-i-1] );
here why does second (i.e. keys stored ) element of the pair get swapped and not the first.
i didn’t understand this pair storing and its initialization inside the loop.
Prateek bhaiya should have cleared the background before using these terms.
completely useless !!
wasted my whole day in this 
DAMN
