CODEWITHSUNDEEP
c++rsalimitlargenumberuint64
vaultah
vaultah

Reputation: 46533

How to multiply integers larger than uint64?

#include <iostream>
#include <limits>
int main(void) {
    cout << std::numeric_limits<uint64_t>::max();
    return 0;    
}

The code above outputs (on my machine) 18446744073709551615, but I'm trying to multiply numbers that have at least 25 digits. How to properly handle a multiplication of 2 integers that are larger than uint64?

Upvotes: 1

Views: 1315

Answers (1)

bolov
bolov

Reputation: 75697

You need to use a library that handles big numbers. Here are some of them:

Upvotes: 3

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