hdu 改一个符号即可8*x^4+7*x^3 + 2*x^2 + 3*x + 6 == Y
描述
Now,given the equation 8*x^4 - 7*x^3 + 2*x^2 + 3*x + 6 == Y,can you find its solution between 0 and 100;
Now please try your lucky.
输入
The first line of the input contains an integer T(1<=T<=100) which means the number of test cases. Then T lines follow, each line has a real number Y (fabs(Y) <= 1e10);
输出
For each test case, you should just output one real number(accurate up to 4 decimal places),which is the solut......
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