B流浪地球

B流浪地球

 中途改了题意没看到瞎做半天hhh

#include <bits/stdc++.h>
#define ll long long
using namespace std;
double c =  2997924.58;
ll quickmul(ll a,ll b)
{ll ret=1;for(; b ; b >>=1 ,a =(ll) a * a )if((b & 1))ret=ret * a ;return ret;
} void solve(double x,double y)
{double tp = (2*x+y);if(y>=c){printf("0n");return ;}int cnt = 1;while(tp<c){tp = 2*tp+y;cnt++;}printf("%dn",cnt);
}
int main()
{double n,x,y;scanf("%lf",&n);while(n--){scanf("%lf %lf",&x,&y);solve(x,y);}return 0;
}