Form biggest no?

#1

how to approach this problem??

#2

Let us suppose you have to arrange two numbers A and B to obtain the larger number. You will have to decide which number to put first – we compare two numbers AB ( B appended at the end of A) and BA (A appended at the end of B). If AB is larger, then A should come before B in output, else B should come before. You can append them as strings for comparison.

this is basically a string sort question
where u make a custom comparator and
u neeed to make the comparison of 2 integers by converting to string
return a+b > b+a
eg:
a = 9
b = 90
so to form biggest number a+b -> 990
and b+a -> 909
so which is bigger 990
even though 90 is numerically greater than 9

so the crux is to return a+b > b+a
a & b are string value of int being passed as paramter

#3

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