2
100
-4

1.6152
No solution!


#include<stdio.h>
double m;
double f(double x)
{
	return 8*x*x*x*x+7*x*x*x+2*x*x+3*x+6;
}
int main()
{
	int n;
	scanf("%d",&n);
	while(n--)
	{
		
		double l,r,s,h;
		scanf("%lf",&m);
		if(f(0)<=m&&f(100)>=m)
		{
			l=0,r=100;
			while(r-l>1e-7)
			{
				h=(r+l)/2;
				s=f(h);
				if(s>m)
				r=h;
				else
				l=h;
			}
			printf("%.4lf\n",(r+l)/2);
		}
		else printf("No solution!\n");
	}
		return 0;
}