题解 | #xxx定律#

#include <cstdio>
#include <iostream>
using namespace std;

int XXXRegular(int n);
int main() {
    int a;
    while (cin >> a ) { // 注意 while 处理多个 case
       XXXRegular(a);
    }
}

int XXXRegular(int n) {

    int total = 0;
    while (n != 1) {

        if (n % 2 == 0) {
            n = n / 2;
        } else {
            n = (3 * n + 1) / 2;

        }
        total++;
    }
    cout << total << endl;
    return 0;

}




// 64 位输出请用 printf("%lld")