10-26 Exercise 3: Find roots of a quadratic equation

0 like 1 dislike
13.7k views

Write a program to find roots of a quadratic equation

A quadratic equation is a second order equation having a single variable. Any quadratic equation can be represented as where a, b and c are constants ( a can't be 0) and x is unknown variable. 

寫一個找二次方程的求根程式

For Example

 is a quadratic equation where a, b and c are 2, 5 and 3 respectively.

To calculate the roots of quadratic equation we can use below formula. There are two solutions of a quadratic equation.

使用下列公式:

x = (-b + sqrt(D))/(2*a)
x = (-b - sqrt(D))/(2*a)

where, D = (b*b-4*a*c) is Discriminant (判別式), which differentiate the nature of the roots of quadratic equation.

For the complex result (複數根):

realPart = -b/(2*a);
imaginaryPart =sqrt(-D)/(2*a);

Note: We have used sqrt() function to find square root which is in math.h library.

 

Example input 1:

1 2 1

Example output 1:

Roots of 1.00x^2 + 2.00x + 1.00 = 0 are real and same
x1 = x2 = -1.00

 

Example input 2:

1 -3 2

Example output 2:

Roots of 1.00x^2 + -3.00x + 2.00 = 0 are real and different
x1 = 2.00
x2 = 1.00

 

Example input 3:

1 2 2

Example output 3:

Roots of 1.00x^2 + 2.00x + 2.00 = 0 are complex and different
x1 = -1.00+1.00i
x2 = -1.00-1.00i
[Exercise] Coding (C) - asked in Chapter 5: Selection Statements by (5.2k points)
ID: 28934 - Available when: 2017-10-26 18:00 - Due to: Unlimited
reopened by | 13.7k views
0 0
We will continue this question in few days
commented by (12.1k points)
0 0
Everything is fixed. Enjoy your time with The Judge :)
commented by (12.1k points)
0 0
ANNNNNNNNNNNNNNNNNNNNNNNNNNGRYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY
commented by (-249 points)
0 0
Your code has newline at the end sometime. You learned this lesson many times!
commented by (12.1k points)
0 0
After i correct the newline in my code,there is still wrong output.However,I had run the program in Codeblocks.The output is still as well as the result. Seeking for help.
commented by (-214 points)
0 0
your output lack of 1 space at line 8 when print out "Roots of ...". Please be careful with all small details when working with online judge
commented by (9.9k points)

56 Answers

0 like 0 dislike 
Hidden content!
#include <stdio.h>
* * *** ** *  **  *
int main()
{
***  *   *  **         *****  * *       *** * ** **   
***  **  ****   **  *** * **  *   *  %f **  *  ** ** **** **    ****** **
*    ** *  ** * * ***  * = (b*b-4*a*c);
 ****   * *  **     * *   *** * = (-b + sqrt(D))/(2*a);
** ** * *  **    *   **  = (-b - sqrt(D))/(2*a);
** * *** **   ** *   *   *** *      ** = -b/(2*a);
 *****     *   *  * * *  *  *    *    =sqrt(-D)/(2*a);
 * *   ****   *     *  ** * *       *  *  *
*  *   * * *  *    *    * 
** *** *** *    **  ***  * ** **  ** ***   ****   *       ***   * **** of %.2fx^2 + %.2fx + %.2f = 0 are real and ****   **    *  *
 *  **  *  *  *  ***  *** *****   ** ** * * ***   *    *** *****   * = %.2f\nx2 = %.2f",x1,x2);
** ** ***** * *  * **  *  

**** ***** * ***  ** *** ** * ** * if(D==0)
 * *   ** *  * **     *  
 **   *** ** * * * * * *     ***** *******  *** *  ** **  *****  of %.2fx^2 + %.2fx + %.2f = 0 are real and same\n",a,b,c);
*** * *   ***  **  * *  *   * ***  *  * **  ****** *** *     **  ***** ** = x2 = %.2f",x1);
* ** **   **  **** ********
** * * * *** ** * **   ****  ****
*****  **  * * **** *** * 
***** *****    * * * **    *  *   *  **  ** * *   *  *** ** ****   of %.2fx^2 + %.2fx + %.2f = 0 are complex and ***** ****  *   **  
**  *   ****** **  ******  *  ** *       *  *   ** *   **  *  =  *** *** *  * *    *** **   * *  
 ********* *    *  ** **  *      **   * **    * ***  ***   =  * *  *** *   *  *** ***** * 
* *     ** *     ***    *** 
** ** **  * **** *  * * *     ** *  0;
}
answered by (-281 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
 * *  ***** *** * *
int main()
{
*  **  *   *  **     * ** * *  ********** *   ** ****  
*      **** ** ****** *  * *   ** *     %f  **** * * ***** *** * * *
  *  * * * *      * ** ***  = (b*b-4*a*c);
   * ******  **** * * ***    *  = (-b + sqrt(D))/(2*a);
  *  ****  *  *      *   *** ** = (-b - sqrt(D))/(2*a);
  *  *  *       *  ***** ***    *  = -b/(2*a);
 * *  * * ***  ** ***  *** * *  *****  =sqrt(-D)/(2*a);
      *  **********    * ******  *  
    ** * **  *  ** *  *** **   
   *** * * ***    *****     **  **     **  ******* ****   ***   ** of %.2f x^2 + %.2f x + %.2f = 0 are real and * *   *   * ** * * * 
 * *   **     **   * *  *** * * *   * * ****** * * * *   ****   ** **  = %.2f\nx2 = %.2f",x1,x2);
**** ** *   * *   * ***   

** * **** **   **  * *  if(D==0)
*  * ***  *** **** * *** * *
 ******   **  *****  **  * **** *     **   * ***   * *  * * **  ***      of %.2fx^2 + %.2fx + %.2f = 0 are real and same\n",a,b,c);
**   *    * * *  * *  * *      ****** *    ** * * *  ** *    = x2 = %.2f",x1);
* **** ***  ****** *** ***  ***
** *  * ** *   *     ***
*** ** *  *** * *  * *   **  ******
  ***** *  **  *  * *  ****  * * ***   * ***  *  ** *  *      of %.2fx^2 + %.2fx + %.2f = 0 are complex and     *  **  ** * * 
  * * * ** *  * *** * ** **   *  * *  *    ****  ****  ** ***  *  = **  * **  **  *  ** *  ***
 ***     *** *** **  *   *      **    * ****    ***  ** *    **     = *** *  **   * ***  *   **
*   ***  **    *  *  ***** * *
*  **********  * *   * **    * * 0;
}
answered by (-281 points)
0 0
Case 0: Correct output
Case 1: Wrong output
Case 2: Correct output
Case 3: Wrong output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()

{
 * ***  * *      *   ****  a,b,c,x1,x2,D=0;
***********  * * * ** ***  
 * *  *  ** *  *  ** ***   *** * *   %f ****  **   *  *     *  **  * ** 
 ** * *  **     ***     *   
 * *  *  *  **  **  * *  * *   *  **    *
 * *  ***** ***** *    ****  **     + sqrt(D))/(2*a);
***  *****  * *  * ***  ** *  *    - sqrt(D))/(2*a);
*** *    *  **   *   **** *  * *
* *  *   *  * * *  **  ** ** * * ***** **
** *    *** **  * ** *****    
** **  * *    *   * ** *** * ** *  * ** **    ********* *    of %.2fx^2+%.2fx+%.2f=0 are complex and   ****    * * *  * *****  * **  
 * * **** *****   **   ***
*** ***** ** * ** *** ** *
  *** * ***  **    *** *** *    * if(D==0)
* **** *** ***   * *** ** ** * 
* ***  ******   *  **  * *  * * *  **  *  *      * *  *  *  *** of %.2fx^2+%.2fx+%.2f=0 are real and same\nx1=x2=%.2f",a,b,c,x1);
** * *  * * *  ****  ** * 
 *** * *  * **     *** * *   * 
*  *   *** * *  ******* * ***
  *  ** ** * ****  *** * * **
* *  * * ** * ***  * ******* **  **       * *      *   *   of %.2fx^2+%.2fx+%.2f=0 are real and   ** ** ****   * **   ***** 
    ****** *     * ***   ***
**   *   * ** *  ***    ** ***
*   * ********* *      * **
   * * *** *****  ****** ** *   0;
}
answered by (-127 points)
0 0
prog.c: In function 'main':
prog.c:12:14: warning: implicit declaration of function 'sqrt' [-Wimplicit-function-declaration]
     x1=(-b + sqrt(D))/(2*a);
              ^~~~
prog.c:12:14: warning: incompatible implicit declaration of built-in function 'sqrt'
prog.c:12:14: note: include '<math.h>' or provide a declaration of 'sqrt'
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
 ** * * * *  *      
int main()
{
*  ** ******  *   *  ***     ***** a,b,c,D;
********  *  ** *  * *** *  *** * x1,x2,r,i;
 * ***  *   * * *   * ** * **     ** **    * **   * * **    ******
**    * *    * *  *    *** * **** * *     
 **   ****** *  ***  **  *    ****** **  *    
 *        *   * **    ***   * *   ** **  ***** * 
 ** ** ** ****** ****** * **    
   * * *   *    * ***    *   *
*   *** *** **    ******   *    * *** *       ***  * ********  *** * * **** of %.2fx^2 + %.2fx + %.2f = 0 are real and same\n",a,b,c);
 * **** ** *  ****   * *    **  * *   *  *** * ***  **    *   ***    = x2 = %.2f",x1);
******* * * ** ** *  ***  * ** 
  *  *   * * *   *  * ** *  *** **  * if(D>0)
* *  **     ** *** ******* * 
***** *  *   *      * *   **  ***   *     **    ***** *** ***      *** *  * of %.2fx^2 + %.2fx + %.2f = 0 are complex and * * **  *** *  **    
     *   *****  *   * * **    *** *****   ***     *     = %.2f\n",x1);
 ***      **  ***   * *** *** *   **  *   **    **     **  **  = %.2f",x2);
*    ***  **    *  *** *  ** *  *
 *   ****  * **   **   *** ** ** if(D<0)
  ** *       *   *   *** 
  *    ** *    **   *** ** ****** ** **  * *   *   *   *** ** *  *  **    of %.2fx^2 + %.2fx + %.2f = 0 are complex and different\n",a,b,c);
*  ** *** *  * **   * ** * ** *  *  **  *   *    * -b/(2*a);
 ** ***********  ** ****  * * *  *      *  *       ** * *  * 
 ** *   * * ****** *** * **   ***    ***   * ***  *****  ******* **** = %.2f+%.2fi\n",r,i);
 ****** *** ******   *  * ****** ** ***** **    *  ***    *    **   ** *  * = %.2f-%.2fi",r,i);
 *    *   * * *  **** ***
}
answered by (-329 points)
0 0
prog.c: In function 'main':
prog.c:6:5: warning: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
     scanf("%f%f%f",&a,&b,&c);
     ^~~~~
prog.c:6:5: warning: incompatible implicit declaration of built-in function 'scanf'
prog.c:6:5: note: include '<stdio.h>' or provide a declaration of 'scanf'
prog.c:12:9: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
         printf("Roots of %.2fx^2 + %.2fx + %.2f = 0 are real and same\n",a,b,c);
         ^~~~~~
prog.c:12:9: warning: incompatible implicit declaration of built-in function 'printf'
prog.c:12:9: note: include '<stdio.h>' or provide a declaration of 'printf'
prog.c:17:9: warning: incompatible implicit declaration of built-in function 'printf'
         printf("Roots of %.2fx^2 + %.2fx + %.2f = 0 are complex and different\n",a,b,c);
         ^~~~~~
prog.c:17:9: note: include '<stdio.h>' or provide a declaration of 'printf'
prog.c:23:9: warning: incompatible implicit declaration of built-in function 'printf'
         printf("Roots of %.2fx^2 + %.2fx + %.2f = 0 are complex and different\n",a,b,c);
         ^~~~~~
prog.c:23:9: note: include '<stdio.h>' or provide a declaration of 'printf'
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
*  ** **  *** *   ***  *
int main()
{
* **  * **   ***  ******    a,b,c,D;
  *****  **** **  ** *  * *  * x1,x2,r,i;
     ** * * **  * *    * **  *   * * * *** * * *  *****   * *  * ****  ***  ***
** ***   * * **    ****  **  **   
***** ** ***    ** *      *   *** *** 
* *   *   * ******    *   *****       ***
  **  **   * *  **    *   *** * 
*  ** **   **   **   * * * *****
   ** **** *****  *  ** *     * *** **  * *      ******** ** ****  ** ** * of %.2fx^2 + %.2fx + %.2f = 0 are real and same\n",a,b,c);
 *   * *   * *** ******  * * *   **  **  *    ** **       * * *** = x2 = %.2f",x1);
**  *   *     **** * ***** 
**  * *** *   * ***** ****   if(D>0)
  ***    **    *   *** ** *
    ****  **    * **  ** **  *    **  * **** *   **  *     *** of %.2fx^2 + %.2fx + %.2f = 0 are complex and   *     *  *    **   
  * * ****        *  ** *    **  **   ** ***    *** * *     *  ** * = %.2f\n",x1);
  * **  * *** * ** ** *  *   *    *  ** ** *    *  * * **** *    **** = %.2f",x2);
 *         ***** ***** *   
 **  *   *   * ***   ***   *   if(D<0)
 ***    * * **  **    
* ****      * *  *     *     *   ***  *  *  **         * * *  ***  of %.2fx^2 + %.2fx + %.2f = 0 are complex and different\n",a,b,c);
 *    * * *   *** ***  ******  **  *  ** *  *** * *  -b/(2*a);
 *** **  ****   **  *   **  ****  *  * ** * *  ** **     * *  *
  ** ** * *   ****** *** *  **  * *** ***   ** ** * **   ** = %.2f+%.2fi\n",r,i);
** *     *    * * ***     ** ** * **  * ****** ********** *  *****  **** = %.2f-%.2fi",r,i);
* *** **   *** *    *  *    * *   
}
answered by (-329 points)
0 0
prog.c: In function 'main':
prog.c:8:12: warning: implicit declaration of function 'sqrt' [-Wimplicit-function-declaration]
     x1=(-b+sqrt(D))/(2*a);
            ^~~~
prog.c:8:12: warning: incompatible implicit declaration of built-in function 'sqrt'
prog.c:8:12: note: include '<math.h>' or provide a declaration of 'sqrt'
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
int main()
{
 **  *  *** **  ** ** ***    * a,b,c,d,x1,x2;
*  *  * * *  *********    ****  *    ** *    ** *  * **** ****  * ***  
     *   *** * ** ** ***   **   * **  * 
 **   *  * **    **    *   * *   *  * 
****** *   * * **  **   ****  *      ** ***
**** ***   * *  *** *  *** *** ** *
***   *** ***  * *** **  
*****    *  * * *     *  * * ** * * **   * **  *** * * *   *** **    ****** of %.2fx^2 + %.2fx + %.2f = 0 are real and * *  *** *   *      * 
     *   **     ***   *  *   ***       ***  ** ** **   *  *****  ** = %.2f\n",x1);
  ****   *  *    * **** *  *    * ** * **   * * *  ** *  * **  = %.2f",x2);
****  * **      *** ****   *
 *** * ** * **        ***  *  * *   if(d==0)
     ** ** *    * **  ****
* * *  *    *  *  **    ***   *** **  *    *  *    * ***   **   **** of %.2fx^2 + %.2fx + %.2f = 0 are real and same\n",a,b,c);
*  ** * * * ** ** **   **  ** * * *  ** ** ****  ****    *  **   = x2 = %.2f",x1);
*   **** *  *** ** ***  *  *
   **** *  *    *** * *   * 
**  * *** ** **  * *  **
 **        **   ****  * **   * ** * *  ***  ***    *   * **  of %.2fx^2 + %.2fx + %.2f = 0 are complex and ** *   * * ** **
 **    ****    ***   * ***  * ***     ***  **** *****  *   =   **** ** ****  *  *  *    **  *
* *    *** * ******* *  ***  * **   ****   **  ** ** *  * * *** = ** *   ****  * *  * **   *** * 
 *  *    *** ****  * * ** *  *
  ** **   * *   ****   *  * * 0;
}
answered by (-498 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include <stdlib.h>
#include <math.h>

int main()
{
 ***  ***   ** *  * * *** *    a,b,c,d,x1,x2;
*  **  *****   ****  *     *  * * ***   ** *   *** *  *   *    * * 
 *  ** * ** **   *   ***  *** **  * 
  *    * * ****   *     * *  ** = (-b + sqrt(d))/(2*a);
  *** *** ** *  ** * **** *** = (-b - sqrt(d))/(2*a);
**  * **  * **** ** **    *** 
  **** * * ****  **  * *** * *    **   **   **** *****  *** * of %.2fx^2 + %.2fx + %.2f = 0 are real and different\n",a,b,c);
* ***    *  ***   ***  ***** ****   * **** * *** *******  * ***  **** *****  *  * ** ** *   * **  * * *  ** ****      *   ** *  * * *** **  *  ***  *        * **** **** * *  * *  **   ** *  *   ***  ********* *******   ** *    = %.2f\n",x1);
   *  **   ***  ***** **  ***  ** ******** * **  *** * ** * **  *** * *****   ** *** *   * *  ***  **** **** ***  *   * * *** **    ********** ******  **    *** *** * ** ** **    * **  **   **** * * * * **** **  **  ** ** *  *  *  = %.2f",x2);}
   *  *** * *    *   **     *   if(d==0)
 *  **  **   *** *** **   *******    **  * ***   
** * **** ***    *     * **** ** **    **** * ** **  * ** ** * *  *** ***** ****** * of %.2fx^2 + %.2fx + %.2f = 0 are real and same\n",a,b,c);
  **   *** ** *  * * **    *  **  *** **   *    * ****  *  ** ** *  * ***  ** ** ** ****  * *  * *       ** * *    *******  **  *  * * **** * = x2 = %.2f",x1);}
 *   * **    **   ***   *  *
*   ** ** *** *  *  * **  **    *     ** *      *  ****** * ***     of %.2fx^2 + %.2fx + %.2f = 0 are complex and different\n",a,b,c);
 *    ******   * *  ** * *   *  *   *   * **** **   * **   *   ***  =  ** ** *       *  ****       *  **
  *  ***  ** *  **  *  ***       **** ***  * ***** ** *  *     **** =   ** ******** *     * *
** *  ** ***    ** ** **  *** 0;
}
answered by (-108 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include   ** *  ** * * *  
#include    ***   * ** ***

int main()

{
  *  ** *   **   * ******** *     ***  ** ***  **
* **   *  ** *****     * *       *   * %f   * *** ** * * * *  **  ** *   ***

   **   ** ** ** * * * **  * *  * * 
  ****    *****   *   * * **   + sqrt(D))/(2*a);
***      * ** *  * *** *** * * -  * **     *
  *** ****  *   *  *   **     *
 * *** * ***     *        *  *   ** **  **

* *  ** *** * ****      *   * * (D==0)
    ******* * ** **** * ****
** *  **  * *****  **   ***** *******       * ***** * ***  **   **** **** of %.2fx^2 + %.2fx + %.2f = 0 are real and same\nx1 = x2 = **** *  ** *** **
  * ** * *** * ****** * * *
***   ** * ** *   * * ***  * * * ** if (D>0)
* * ** **  *  * ***  
**  * *     * **    *  *** * *   *  * **      *  *  *  ***     of %.2fx^2 + %.2fx + %.2f = 0 are real and different\nx1 = %.2f\nx2 =  ***        *  ***
 ********     *  *** ** * * *  **
** **     * *   *  *******
  *  *    * * * * **** * 
 ** * **  *** **  * ** * *****   ** * *    *** * * ****  ** **    **** of %.2fx^2 + %.2fx + %.2f = 0 are complex and different\nx1 = %.2f+%.2fi\nx2 =     *  **  * * ***    **  *     *
***  * ** ***  **** ***    * *

* * * *** *  * *       **      *  0;

}
answered by (-249 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include *** *    ** **
#include    ** ** **** ** **
int main(void)
{
float a,b,c, D, x1, x2,i;
  **    ** **** ***  ** **  ****  **** %f   * ** **  &a, &b, &c);
** *   * ***  ****  *** * **** ***
  ** ** ** ** * **   ** **   *    (D>0)
  ** **   *  ** **  **    * * **
*** ****  *   ***  * * ***  **  * *** ****    *** * * *  *  *** ** *
  **** *   * *** *  **      **  **     *   **  *         ** *** 

         **      * * ***** *  ****   **     * **  * **   * ***   *   **** * of %.2fx^2 + %.2fx + %.2f = 0 are real and * ** * * = %.2f\nx2 = * **  *  * **  
 *   **  ****  *** * ** **   
   ** *   *** ** ****  ** * * * if (D==0)
* *   *    *  * **  **   * 
* *** *** *  **    *** * ***     * * * ***  ***  *  ** *     **
 ****  * ***    **** *  **  *     *** ***  **** * ** *** *   *  * *  * of %.2fx^2 + %.2fx + %.2f = 0 are real and same\nx1 = x2 =  * **   *  ****
 ** **** *     *    ** * **  
** * **** *  **** *  *** ***   
 * **** * **** *   *   ** 
*   *  *      * **** * ** ***     x1=x2 = -b/(2*a);
 *  * *   * *  *   *   *  * * *      ****     * ** *****  *   ** ******
** * * *** ** * *  *  *  ********    * * ***** ***** * **  * *   ***   of %.2fx^2 + %.2fx + %.2f = 0 are complex and   *** **  =      * *   =  ** *  ** * ** ***  x2,i);
*** ***   * * * ****    **   



  * *        ***  *       ****  0;
}
answered by (-304 points)
edited by
0 0
prog.c: In function 'main':
prog.c:10:16: warning: implicit declaration of function 'sqrt' [-Wimplicit-function-declaration]
         x1=(-b+sqrt(D))/(2*a);
                ^~~~
prog.c:10:16: warning: incompatible implicit declaration of built-in function 'sqrt'
prog.c:10:16: note: include '<math.h>' or provide a declaration of 'sqrt'
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Correct output
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Correct output
commented by (4.3k points)
0 0
prog.c: In function 'main':
prog.c:21:5: error: expected ';' before '{' token
     {
     ^
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Correct output
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Correct output
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include  *** **      
#include    **** ***  * 

int main()
{
*** ***** ** *  **  * ** *** ** a, b, c,  *  * * x1,x2, realPart,      *  


   *   ** **  *  * *****  *    **  *  * %lf  * * ** ** * ** * &b, &c);


 * ***   * * *** ******  *  * = b*b-4*a*c;

  ****  * *   * * * ***  condition for real and different roots


 *   * *    *   ***** **  * ** * *   for real and equal roots
******* * * **   ***  **  *   * * *** *  (determinant == 0)
*   **  *     *** * * *    * *
*** *********  * * *   * * **********    *****  ** **  * = x2 = -b/(2*a);
  *   *  *  * *       *  *     * * *   ***  ** *   ***  ***  * * of %.2fx^2 + %.2fx + %.2f = 0 are real and ******** a,b,c);
** **   *  *   *** * ** *  *  *  ****  * * * **  **** * *****  * = x2 =  ***** x1);
 ***  *  ** ** *     ******   * 

** * * *  * **    *      *   * *   **     if (determinant > 0)
    ** *        ** * ***  *
**  *** **  *   * **    ****    sqrt() function returns square root
  * *  *  *  *  * *  ** *** * ** **  ** *  *  *** * ***  = *  **  *******   *  *
**  **  *** ** * *    *   ** *    **  * ***    ** **  =  *** ** * *** *  ****

  *    ***  ***** ** **  *** * * ***   ****** **   *   **     *  ** **   of %.2fx^2 + %.2fx + %.2f = 0 are real and  * ** * ***         *
 * *   *     *** * * *  * **  *** ** *     ****   ****   *         * * * =     * *** *  x1);
*  **  **    * ** ***   *  * * *       * **     *  * * **   * * *** * * =  *   *  *   x2);
    * *    **** * ******** ** if roots are not real
***  * *** * *  *  ** ** *  *   *   
*  ** *  ******* ****  *  ***  
**     ** **  * * ** *****     * ***   **    *   * ** **  = -b/(2*a);
** * *  * * *   **  *  ** **  *      **** *  **     *  * *  *  * = * * *  *  ** *** 
*  * *    **  *   * * * *****  * ** * ***     * ****  ** *** ***** **   of %.2fx^2 + %.2fx + %.2f = 0 are complex and *  ****  *** a,b,c);
**  ***   * ** ******   ***** **  *   *  * *** **         **  ** * =  ***** * *** *       realPart, **** *  *
**** ** ******  * ****  * ***  ***** ****  **    ****   ** ** * *** = *   * ***** **   realPart,  *  *
** *    ** ** *   * * ** * ** *

    *     *** ***   *   0;
}
answered by (-167 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
Page:
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.69.214.204
©2016-2025

No related questions found

12,783 questions
183,442 answers
172,219 comments
4,824 users