Can you solve this equation?
Time limit:2000/1000 MS (java/others) Memory limit:32768/32768 K (java/others)
Total submission (s): 11180 Accepted Submission (s): 5151
Problem Descriptionnow,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 try your lucky.
Inputthe 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);
Outputfor Each test case, you should just output one real number (accurate up to 4 decimal places), which is the solution of The Equation,or "No solution!", if there is No solution for the equation between 0 and 100.
Sample Input
2100-4
Sample Output
1.6152No solution!
Authorredow
search questions, well, this time I know there is a search position, two-point search. It's really nice to find answers like this. Low and high infinite clip force answer. So because the final result only needs to satisfy certain accuracy. This will find the right conditions to jump out while.
Alas, if you do not know this, floating point violence is simply silent.
#include <iostream> #include <cmath> #include <stdio.h>using namespace std;double A (double x) { Return (8*pow (x,4) +7*pow (x,3) +2*pow (x,2) +3*pow (x,1) +6);} int main () { double y; int T; cin>>t; while (t--) { cin>>y; if (A (0) >y| | A (+) <y) { cout<< "No solution!" <<endl; Continue; } else{ double high,low,mid; high=100; low=0; while (Low+1e-8
Hangzhou Electric HDU ACM 2199 Can You solve this equation?
