#include using namespace std; #define ALL(x) x.begin(),x.end() #define rep(i,n) for(int i=0;i<(n);i++) #define debug(v) cout<<#v<<":";for(auto x:v){cout<bool chmax(T &a,const T &b){if(abool chmin(T &a,const T &b){if(b>n; ll cnt=0,M=n; while(n!=1){ if(n&1) n=3*n+1; else n>>=1; chmax(M,n);cnt++; } cout<