Question

How to calculate power of a number using recursion in C++

Answer 1

#include <iostream>

int power(int n, int exponent);

int main(void)
{
	int exponent = 4, n = 2;

	int total = power(n, exponent);

	std::cout << n << " ^ " << exponent << " = " << total << std::endl;

	return(0);
}

int power(int n, int exponent)
{
	if (exponent != 0)
		return (n * power(n, exponent - 1));
	else
		return 1;
}

/*
run:

2 ^ 4 = 16

*/

 

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