find last digit of number
#include <iostream>
int lastDigit(int number);
int main() {
int num;
std::cout << "Enter a number: ";
std::cin >> num;
int result = lastDigit(num);
std::cout << "The last digit of the number is: " << result << std::endl;
return 0;
}
int lastDigit(int number) {
return number % 10;
}