正确的写法是位运算~~ 左移即可

#include <bits/stdc++.h>
using namespace std;
#define faster ios::sync_with_stdio(0), cin.tie(0), cout.tie(0)
typedef long long ll; ll n;ll cntl,cnta;const ll N=1e3+5; 
ll a[N]; ll T=1;
void solve(){
	ll l,r;cin>>l>>r;
	ll x=1;
	while(x<=r){
		if(x>=l)cntl++;
		x=x<<1;
	}
	 cout<<cntl;
}
int main(){
	faster;
	while(T--)solve();
	return 0;
}