View Code of Problem 74

#include<iostream>
#include<cstring>
#include<string>
#include<algorithm>
#include<vector>
using namespace std;

int main()
{
	double n;
	cin >> n;
	double x1 = 0.5 * (1 + n);
	double x2 = 0.5* (x1 + n / x1);
	while(abs(x2-x1)>0.00001){
		x1 = x2;
		x2 = 0.5* (x1 + n / x1);
	}
	printf("%.3f", x2);
	cin >> x1;
	return 0;
}