Can you solve this equation

G. Can you solve this equation?

TimeLimit: 1000ms

2017.12.10

64-bitinteger IO format: %I64d     Java class name: Main

Submit Status

Now,giventhe equation 8*x^4 + 7*x^3 + 2*x^2 + 3*x + 6 == Y,can you find its solutionbetween 0 and 100;
Now please try your lucky.

Input 

Thefirst line of the input contains an integer T(1<=T<=100) which means thenumber of test cases. Then T lines follow, each line has a real number Y(fabs(Y) <= 1e10);

Output 

Foreach test case, you should just output one real number(accurate up to 4 decimalplaces),which is the solution of the equation,or “No solution!”,if there is nosolution for the equation between 0 and 100.

Sample Input 

2

100

-4

Sample Output 

1.6152

#include<stdio.h>#include<string.h>#include<math.h>int main(){    double f(double x);    int t,j;    scanf("%d",&t);    for(j=0;j<t;j++)    {        double y,x=0.0,m,l=100;        scanf("%lf",&y);        if((f(0)-y)*(f(100)-y)>0)            printf("No solution!\n");        else        {            while(fabs(l-x)>0.000001)            {                m=(l+x)/2;                if(f(m)-y>0)                    l=m;                else                    x=m;            }            printf("%.4lf\n",m);        }            }    return 0;}double f(double x)return 8*pow(x,4)+7*pow(x,3)+2*pow(x,2)+3*x+6;

Nosolution!