Question

How to swap three numbers in cycle order with C++

Answer 1

#include <iostream>

void CycleSwap(int *a, int *b, int *c);

int main()
{
	int a = 1, b = 2, c = 3;

	std::cout << "a = " << a << " b = " << b << " c = " << c << std::endl;

	CycleSwap(&a, &b, &c);

	std::cout << "a = " << a << " b = " << b << " c = " << c << std::endl;

	return 0;
}
void CycleSwap(int *a, int *b, int *c)
{

	int tmp;

	tmp = *b;
	*b = *a;
	*a = *c;
	*c = tmp;
}



/*
run:

a = 1 b = 2 c = 3
a = 3 b = 1 c = 2

*/

 

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