Question

How to extract the last N digits from a number in C++

Answer 1

#include <iostream>
#include <cmath>

int last_digits(int num, int digits) {
    return num % static_cast<long>(pow(10, digits));
}

int main() {
    int num = 3892156;
    int N = 3;

    int last = last_digits(num, N);
    std::cout << last;
}


/*
run:

156

*/

 

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