N initialization

#1

why we are not initialize separate n.

#2

@aayushveer9_9036417178d04a74 we can save memory by utilizing the same variable ‘n’ to store the remaining number.

for eg - if n=1234 we extracted 4 from it by using % (mod) operator I.e 1234%10 = 4 now instead of wasting memory of variable n we store the remaining number 123 in same variable n i.e n=123.

#3

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