害死人不偿命的(3n+1)猜想 (15)

复制代码

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

int main(){
    
    int n;
    while (cin >> n){
        int ans = 0;
        while (n != 1){
            if (n % 2 == 0)
                n /= 2;
            else
                n = (3 * n + 1)/2;
            ans++;
        }
        cout << ans << endl;
    }

    //system("pause");
    return 0;
}