代码

#include<bits/stdc++.h>
using namespace std;
long double ans1,ans2,ans,a,b;
long double f(long double x)
{
	return sqrt(pow(x-a-b,3));
}
int main()
{
	ios::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	cin>>a>>b;
	ans1=100000000000,ans2=10000000000;
	for(int i=1;i<=50;i++)ans=ans2-f(ans2)*(ans2-ans1)/(f(ans2)-f(ans1)),ans1=ans2,ans2=ans;
	cout<<fixed<<setprecision(0)<<ans;           
	return 0;
}

评测结果