PAT B.1001 3n+1猜想

#include using namespace std;

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