HELP handling integers big integers that can not be stored in ULL

ankursmooth · June 24, 2015, 8:32pm

I need help on handling integers big integers that can not be stored in ULL.
is there any code that is used by most of programmers in coding competitions. (like there are many graph algos whose code is modified according to question but basic structure is same).
C++ code please

ironmandhruv · June 25, 2015, 4:08am

I think the one by Anudeep Nekkanti is one of the most popular and best.

github.com

anudeep2011/programming/blob/master/bigint.cpp

#include <iostream>
#include <iomanip>
#include <vector>
using namespace std;

const int base = 1000000000;
const int base_digits = 9;
 
struct bigint {
    vector<int> a;
    int sign;
 
    bigint() :
        sign(1) {
    }
 
    bigint(long long v) {
        *this = v;
    }

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I think the name is enough!

ankursmooth · June 26, 2015, 8:26pm

yes name is enough