Question

You've learned in the past lessons on how to use square root functions, right? Then let's take your knowledge to the test. Print out the square root of a given integer with only two decimal places.

Ready, solve, and go!

Input

A line containing an integer.

4

Output

A line containing a decimal with two decimal places.

2.00

Answer 1

#include <iostream>
#include <iomanip>
#include <math.h>
using namespace std;


int main(void){
	int n;
	cin>>n;


	double sqrtn=sqrt(n*1.0);


	cout<<fixed<<setprecision(2)<<sqrtn<<"\n\n";


	
	system("pause");
	return 0;
}