How do i need to give the output?

#1

if t > 1, the output should be in next line or comma separated or something else ??? no information has been given on how to give the output.

#2

It should be in the next line.

#3
#4

then what is wrong with this?

#5

Consider a case:
1
2
98 9

Expected O/p:
998

Your O/p:
989

The custom compare function must be something like this:
bool mycompare(string a,string b)
{
string ab=a+b;
string ba=b+a;
return ab>ba;
}

#6

Consider the array [54, 546, 548, 60]

Consider the first two elements of the above array:
So in the compare function:
a=54
b=546
ab=54546
ba=54654
Since ba has a larger value than ab, so you have to sort such that b comes before a in the array.
So we return ab>ba (if ab forms the larger number a must come before b in the array and if ba forms the larger number b must come before a in the array)

#7

thankyou bhaiiya : )