Problem:
Score : 300 points

Problem Statement

Does \sqrt{a} + \sqrt{b} < \sqrt{c} hold?

Constraints

1 \leq a, b, c \leq 10^9

All values in input are integers.

Input

Input is given from Standard Input in the following format:

a \ b \ c

Output

If \sqrt{a} + \sqrt{b} < \sqrt{c}, print Yes; otherwise, print No.

Sample Input 1

2 3 9

Sample Output 1

No

\sqrt{2} + \sqrt{3} < \sqrt{9} does not hold.

Sample Input 2

2 3 10

Sample Output 2

Yes

\sqrt{2} + \sqrt{3} < \sqrt{10} holds.

Solution in C++14 (GCC 5.4.1) (judge verdict: Wrong Answer)

#include<cstdio>
#include<cmath>
#define ll long long
int main()
{
	ll a,b,c;
	scanf("%lld%lld%lld",&a,&b,&c);
	c-=(a+b);
	ll sq=sqrt(4*a*b);
	if(c>sq)
		printf("Yes");
	else
	if(c<sq)
		printf("No");
	else
	{
		if(sq*sq!=4*a*b) 
			printf("No");
		else
			printf("Yes");
	}
	return 0;
}