按照题意模拟即可。

#include <cstdio>
using namespace std;
int main() {
	int n;
	scanf("%d", &n);
	while (n != 1) {
		if (n & 1)
			printf("%d*3+1=%d\n", n, n * 3 + 1), n = n * 3 + 1;
		else
			printf("%d/2=%d\n", n, n >> 1), n >>= 1;
	}
	return 0;
}