How to take input of an integer consist of 30+ digit ?

Question

Cpp

Answer 1

The maximum length of a long long integer type (which is the largest built-in integer type) can be shown by the following snippet. For dealing with +30 digits you should use external libraries like Boost [https://stackoverflow.com/questions/15400031/c-what-variable-type-for-extremely-big-integer-numbers]

#include <limits>

....

cout << numeric_limits<long long>::max(); // 9223372036854775807

Answer 2

Split it into 2 outputs and explain it explicitly. The SoloLearn compiler is really limited, deal with it!