How to take very long input for binary?

Question

I am making a program to convert binary into decimal for my school homework.
I have assigned the input variable as 'long' data type, but, maximum input is till 10^10 and I want input for Binaries greater than 10^10.

Any help would be grateful, thanks.

Answer 1

you can use -> long long int
it is biggest in build integer data type

Answer 2

or you can use vector better then array

Answer 3

thanks, but I guess, for longer inputs than long long int, I should use array.

Answer 4

yup, thanks