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

0 like 1 dislike
2.9k 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 | 2.9k 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!
     *** ********** 
*    * ** **   **  *
int main()
{
 * * * * ** **** * ** ** ****  * a,b,c,D = 0,x1 = 0,x2 = 0,Real = 0,imaginary = 0;
** * *** *** * *** *  * ***    ** ****** **    * ***          ****  **  * **  **

** *  ** ***  **   ********* * *** **  of %.2fx^2 + %.2fx +%.2f = 0 are",a,b,c);
   *  **      **   *   *   = (b*b-4*a*c);
*   ** * *    * **   * *  * = (-b + sqrt(D))/(2*a);
*  * * ***  ** **  ****    ** = (-b - sqrt(D))/(2*a);
*     *     * *** * ** *   (D < 0)
*** ** **** *** ***  ***   * 
* ** *  **  ** *****  ** *  *****  *  complex and * ***  ***  *
 ******  ** **  * *  ****  **  **** * * * **  = *****  * **   * ** *** ** ***  * ***
 *  * *   * **  **    ****** *  * **  **  =  **   *   *** ***  *  **  * *  **
  * *******  ****   * ***   * 
*  * **   *** * * ****      *  (D > 0)
*** **  * * * ** ** * **** *
 * ******** ** *** ** *  *** *** * * real and * * ** *
  * **  ***     **    ** *  * ***** **** = * * * * * **   
* ** *** * ***** *  **           **  *  = %.2f",x2);
  ***   **** ** ***  ***** ** 
* * ** * ** *   **  *** ** (D == 0)
*  **  ******* *** **    * *
***    * ** *** ** ** * ***** **  ** * ** * real and same\r\n");
*    * ** **   * *** *** *   * * ** ****  *  * ** = x2 = %.2f",x1);
 * *   ** *     ** *   * **  
}
answered by (-214 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
* ***       *  *  ** **
int main(void)
{
*     **     *  * *   * **** a,b,c,D = 0,x1 = 0,x2 = 0,Real = 0,imaginary = 0;
 *  *   ** **   *    *  **  * **  *****      * **  ******   ** * ** 

   **  *   * ****** ** *   **** *    ** *** of %.2fx^2 + %.2fx +%.2f = 0     **   *   
**   **   ** ***** * **   = (b*b-4*a*c);
    * **   *   ***   ***** = (-b + sqrt(D))/(2*a);
 *** * ** ** * *  *  **  = (-b - sqrt(D))/(2*a);
 ********  * * *   ***  ** * ******  = -b/(2*a);
* *  **   ***  ** * *** * **  = sqrt(-D)/(2*a);
 *  **      ** * * * **** ***** *** * * (D < 0)
 *  ******    ** *** * * *  * * *
* *** * **  **  **  *  *    * ****   complex and   *********  ****   
*     * *     **  ** ** *    * * **  * *  = *  **  ******* *  * * *    **  * 
   * * ** * ***       *   * *    ****  **  * = *   * * * **     *** 
  * *   * **** ** * ***  *     
  **  *     *  ** **   ***  * *    (D > 0)
  *** **  *       * *    * *
 * * * **  ****    ****  * ** *  *****  real and * *   *  *   * 
 *****    *   *** *** ** * *  ** * **** = ***** *  *  *  
  **   *     * **   *  *   * ******* *   ** = %.2f",x2);
**  ***     *  ******* *  
     *  *    *    ***  **  *  ** (D == 0)
 ***  * **  *****   **    ** **  
   **   ***** *  *  *****  **  ******** *** real and same\r\n");
       * ** *   ** * ** *  ** *         * = x2 = %.2f",x1);
*  * * * *** ** *** **  
}
answered by (-214 points)
0 0
prog.c: In function 'main':
prog.c:9:16: warning: implicit declaration of function 'sqrt' [-Wimplicit-function-declaration]
     x1 = (-b + sqrt(D))/(2*a);
                ^~~~
prog.c:9:16: warning: incompatible implicit declaration of built-in function 'sqrt'
prog.c:9:16: note: include '<math.h>' or provide a declaration of 'sqrt'
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
 *  **  *   *  * ****
#   **   * *** ***  ***
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 complex and  **   * *       ** *  
*  ** ** *  *  *     * ****    * * *  *  ****     **** * **  *    *** = %.2f+%.2fi\n", realPart,imaginaryPart);
*  *****   *    **  **** * *** *   *   **    **    * * **** *  ***   = %.2f+%.2fi", *** * * **** *  
* *  *  * ** ** ***** * *   
*  *     ***** * *       ** *    *  * if(D == 0)
  * * ****   ** **    **  *   

 * *  *  *    **    *  *  **  * **** **** **   *  **  *      *  *  of %.2fx^2 + %.2fx + %.2f = 0 are real and  * ***  * * * **
** ***     * *  * *  ****   ***    * *  *  *** * ******* *****   ** * * * = x2 = %.2f", x1);
* *   *  *  **   **   
 ** *** ****    * ***  * ***
   ** *** *  *  ***   ******  
*   * *****  * *** * ** ******* **    ******* ** ** *    * * *      * ** * of %.2fx^2 + %.2fx + %.2f = 0 are real and  **  ** * *******  **
   *   *   * **  * *  * * *   * * *  * * **   * **** *  *  * *  *  **** = %.2f\n", x1);
 *** *  *** *  *  ***   **** * *   ** *  ** * *   *  * *  *  * **  = %.2f", x2);
 **   *  ** *** ** *******  
 * *  * * ** ****  * ** **  **** * 0;

}
answered by (-281 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 like 0 dislike 
Hidden content!
 * *** * **      ** *
#  *** *  * ***  *****
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 complex and   ****   **** *   *
**** *  *   *****      * *   *** *    ** * ***     * **      **  *  * ** = -%.2f+%.2fi\n", realPart,imaginaryPart);
  ** ** * * * ** **   *  *  *    **  * ** ** *** **   *****   ***** * = -%.2f+%.2fi", * ** ** **  * *** *
* **** *   ** *  * ***  ***  ****  
      ** *     * ** * *  * *  if(D == 0)
*** * **  *  ** *      *    *

**  * ***   **** ****** * *******  ****   **      *** *  *    ** *** of %.2fx^2 + %.2fx + %.2f = 0 are real and  *****     ** 
*** *  ** **  * ***** *** * *      *     *   **** **** ** *  *****  = x2 = %.2f", x1);
* **   ** *   **      ******
*  ******** ** *  ** *  *  **  *** 
 *** **   ***     *** * *
    *      * * ** * **     *** ** ***** *  ****  * *** *       of %.2fx^2 + %.2fx + %.2f = 0 are real and ***** *  **   *   *  
*  **** * * ***** *** *    **  *   *** * ** *  **  ***** *****  **   *** = %.2f\n", x1);
   *   **     ** **  ** * ******   *  *   * *    * **  **** *   * * = %.2f", x2);
*  **  *  * ** * ***   * *  *   **
** ******* * * ** * ***  **** 0;

}
answered by (-281 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 like 0 dislike 
Hidden content!
#include<stdio.h>
#include<stdlib.h>
#include<math.h>

int main(void)
{
   **  *     *** *    * * * ***  * a, b, c, D, spD, x1, x2;
    
 *   *    * *  ****  ****** ***  **    * ** * %lf %lf", &a, &b ,&c)==3)
    {
 ***   *    ** ** **  *  * ** **** **  ****  * *   ****   *  * *  - (4*a*c);
 *  ****  *  *  * * *   ** *   ***  *** **  ***
*******   ** *** *** ** **   * ***** *  ***  **** *     * * ***
  * * ** * * *** * *  *  *  * *    ******  * * * *  *
 **** ****   **  * **  *   * ** ***  *   * ** * ***  *  * *   *  *     ***     * ** *
 * ***   *  *   * *     *   *  *  ****    *****  ***  **  ** *  *****  **  ** ** *  (-b+spD)/(2*a);
****   **  *    * * ** * ***** * *   * * *    *   * ***    ** *    **** ** ** (-b-spD)/(2*a);
  * * * *  * **   *    * ****  *  *   * * *  *** * ***  **  *****  * *****    (x1==x2){
*   * *  ** ** *  * *  ****   *  ** **  *****  ** *  ** *******  ** ** * ***** * ****  **  * **    *   *   **     **** ***  *** ** ** of %.2lfx^2 + %.2lfx + %.2lf = 0 are real and same\nx1 = x2 = %.2lf",a,b,c,x1);
   *   *   * ** *   *   *   **** *  ** *  * ** ** *  ****  * *  * *****    * *
 * ****    *       * *         ****** ***  ** ***    *  * ** *  *** *  **   **** *****  {
***  * * * ***** * *   ***** ** *  *** *   ** * * * * ** * *  ** *  * *  *      ** **    ** * * *** **  ** *   ****      of %.2lfx^2 + %.2lfx + %.2lf = 0 are real and different\nx1 = %.2lf\nx2 = %.2lf",a,b,c,x1,x2);
** ****       **      ***   ********   *  **     *  **  **  **   * *** *** 
  ***  *****  * * **  * ***   **  *   ** * **  *  *   *
**  ** ** **   *** *   ***  **     * ******    ****  *   *  if(D==0)
*   *  ** *    * ***  ** *   ** *** *   *     * ***     * * * 
* ******  ** ***  * ***   *  ** ** * *** ** **   **  *  ** * *  *   ** *  *     (-b)/(2*a);
***   *   * * ***  *  **    **  *****  *** ***  **  *       **  ***  *  **  ***   * 
 **   * * * ** ****** * ***** **** ** * * * **  ******    *   ** *  * ** * *** 
*   * ** *  *  **      ***   ** *  **   *   ********   **** **    ***  *  *  ** ****    ** *  * *   of %.2lfx^2 + %.2lfx + %.2lf = 0 are real and same\nx1 = x2 = %.2lf",a,b,c,x1);
*  ***  *  **  * **  ** *  ****  * * *** *  ****  * *  * * **    *   * ** * *  * **   * 
  *   *  *  ******** **** *   ** *** * *  *  **    ** *****     * * ** ****
  *** *    *     *     *   ** ****** * * **   *  *         **    * **   *  ***
****** ****  *  *     *  *** ** *  *    ****   * ****** ** *     *  * * *  * ***     * 
***** ** * **** **** * **** * **   ** *** **    * *** ** ** ** ****  * ***  ***   *  ** *  * * *** of %.2lfx^2 + %.2lfx + %.2lf = 0 are real and same\nx1 = x2 = %.2lf",a,b,c,x1);
*  * ***  *   *  ***** **  ** *        *****    ** ** * ***  **  **  *   ** *  ** ***
 * * ***** ** **  *** *  *   ***  ***  *   *** * ***  *** 
 **   ****   **** ******** ** ** ** * ** **** **   *** *  **** if(D<0)
    ****  * **  **  * ****** ***  ***  ** * * * ***     
****  **    ** *  ** ** *  ** *   ** *   * **  * * ** *** **  *  **  * *   * (-b)/(2*a);
   **  *  * * *  *** ** ***   * **   *****   **   * *   * ** **   **  ***   ***     ** ** -x1;
 **** ** **** ***** *** *    * *   * **** **  ** * *   ***   *  *  *   **       **  * * of %.2lfx^2 + %.2lfx + %.2lf = 0 are complex and different\nx1 = %.2lf+%.2lfi\nx2 = %.2lf%.2lfi",a,b,c,x1,x2,x1,x1);
 * ****** *  *  * **  ****     ******* *****   **  * ** 
 * **** *    *  *****
    
 * ** ** *   * ***** * ** *** ** *** * *****  *
** ***  ** **   * *    **    * 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<stdlib.h>
#include<math.h>

int main(void)
{
  ** * *   * *   *******   a, b, c, D, spD, x1, x2;
    
* * * * *  *   *** ***  **   * ** * *  %lf %lf", &a, &b ,&c)==3)
    {
   ****** ***** ***  **** **  *  *  *   **  ** * *** - (4*a*c);
   *** *  ***  ***  * *   *** **** ** **  * * **** ** *
  *****        * *  * *  ***   * ** ***  **    * *  **  *     
 *   *      *     ***   *  ** * * **** * **   **** *
 *  * ** *  ***  *** * * *  ** *** *  ** *   **   **  * *   ****       *  * *** **    *** ***
   **  ***    * ****  **  *  * ** *****   ******   **       **   ****  *  *  *   ****   * ***** (-b+spD)/(2*a);
 *  *  **     ** ** *  *  **  * ***     * *** *** *   *  *    * **  * * **   *  (-b-spD)/(2*a);
**** *  ***** ***  *      *  * ***   ** * ***** *  **  * *    *  *  ****** *  ** * **** (x1==x2){
 ** * * **  * ** *  *     * * *  *    **  ** ****     **   *    ***      *  ****  *     *** **  *****   *** *** *  * *  ** *** ****  of %.2lfx^2 + %.2lfx + %.2lf = 0 are real and same\nx1 = x2 = %.2lf",a,b,c,x1);
  ** **  ** * * * * * ***  **  **  **  ** **    * **** **  * **      *** ******* *  
*   **      * **   *    *   ****    **     *  * * ** ***   * *   *   *** * *   *   *   *  * {
 * *** *  ** * ****  ***  * *    **    ****    *  *** * * *** *   ******** ** ****   *  **   * *  *  ***** *   * * of %.2lfx^2 + %.2lfx + %.2lf = 0 are real and different\nx1 = %.2lf\nx2 = %.2lf",a,b,c,x1,x2);
*      **  *  *  * *  *** ** * * *** ** * **** **          *  * ****  * *****     * *  ** 
**  *   **    *      *** * *  **   *    *  *   ***
** ***** * **** ** **  *   *  * *** *    * *  * *      **  *****  if(D==0)
  * ***       * ****** *** ** *  *  * *** *   ***  * * ***
****    *   **   **** **    ** *****   ****       * **** ** ** **  *** *  ***     (-b)/(2*a);
 *   * * * *  *  *        *    ***  *  **  *    ****     **** * ** *       ****
* *   *  ***  **  * *  * *  * ***  *      **   * *** *** *******  * **** ** * ******  **  *  *
 ** **** ** *** **** *** ** * * **** ** *  *** ** * *  *** **   *  **   * * *  * *  *    *   of %.2lfx^2 + %.2lfx + %.2lf = 0 are real and same\nx1 = x2 = %.2lf",a,b,c,x1);
** *  * ****  ***     *  *  *  * ** **  ***    *  *  *   * **** *    * * ***** 
**  ***   *     * *  **    **      * *    **  **  * *     **********  ** *  *****  * 
 **  **  *** *     * * **  *    ****  *** * *  ** *    * *** *   ****    *   *** ** *
    * *  * *    *** * ** ** * **   *******  ** ** **** ** *  ** * * *   **    *
 ******  *  * * ***   * ** * ** *   * ***** *** *  * * *  * * *** *  ***** ** ** * ***  of %.2lfx^2 + %.2lfx + %.2lf = 0 are real and same\nx1 = x2 = %.2lf",a,b,c,x1);
   ** ** *  *  *   *  ** *    *        *** * * ** * * * ****  *  ** *** ****** 
 * *** *  * ** *   *   ** ***        *    *****   * *  * 
  *    ****  ****      *   **  * * * * **   * *   * ** * if(D<0)
 **** **   * * *** ***   *   **  *   * * *   ** *     
          ** *  *** * * ***    **   **     *   **  * **** *     ***** *    * * *** * (-b)/(2*a);
 ** **     **      *       * ***     * ** **  * *   ****** *     *** *     ***  -x1;
  ****  *   * * **     * **  *   ****  *** * *       **** * *   **  *  *   *  *  *  *** *****    of %.2lfx^2 + %.2lfx + %.2lf = 0 are complex and different\nx1 = %.2lf+%.2lfi\nx2 = %.2lf%.2lfi",a,b,c,x1,x2,x1,x1);
  ** **  *** * ** ***  *       ******* ****  *  ** *
**     * ****** **** ***   ** 
    
   ** * * * *  ** ***** **  * * * *   *  ** ***
*  * * ** ***  *    *  *  *  * * * 0;
}
answered by (-249 points)
0 0
prog.c: In function 'main':
prog.c:8:11: warning: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
     while(scanf("%lf %lf %lf", &a, &b ,&c)==3)
           ^~~~~
prog.c:8:11: warning: incompatible implicit declaration of built-in function 'scanf'
prog.c:8:11: note: include '<stdio.h>' or provide a declaration of 'scanf'
prog.c:18:17: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
                 printf("Roots of %.2lfx^2 + %.2lfx + %.2lf = 0 are real and same\nx1 = x2 = %.2lf",a,b,c,x1);
                 ^~~~~~
prog.c:18:17: warning: incompatible implicit declaration of built-in function 'printf'
prog.c:18:17: note: include '<stdio.h>' or provide a declaration of 'printf'
prog.c:21:17: warning: incompatible implicit declaration of built-in function 'printf'
                 printf("Roots of %.2lfx^2 + %.2lfx + %.2lf = 0 are real and different\nx1 = %.2lf\nx2 = %.2lf",a,b,c,x1,x2);
                 ^~~~~~
prog.c:21:17: note: include '<stdio.h>' or provide a declaration of 'printf'
prog.c:29:13: warning: incompatible implicit declaration of built-in function 'printf'
             printf("Roots of %.2lfx^2 + %.2lfx + %.2lf = 0 are real and same\nx1 = x2 = %.2lf",a,b,c,x1);
             ^~~~~~
prog.c:29:13: note: include '<stdio.h>' or provide a declaration of 'printf'
prog.c:34:13: warning: incompatible implicit declaration of built-in function 'printf'
             printf("Roots of %.2lfx^2 + %.2lfx + %.2lf = 0 are real and same\nx1 = x2 = %.2lf",a,b,c,x1);
             ^~~~~~
prog.c:34:13: note: include '<stdio.h>' or provide a declaration of 'printf'
prog.c:41:13: warning: incompatible implicit declaration of built-in function 'printf'
             printf("Roots of %.2lfx^2 + %.2lfx + %.2lf = 0 are complex and different\nx1 = %.2lf+%.2lfi\nx2 = %.2lf%.2lfi",a,b,c,x1,x2,x1,x1);
             ^~~~~~
prog.c:41:13: note: include '<stdio.h>' or provide a declaration of 'printf'
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>
#include<stdlib.h>
#include<math.h>

int main(void)
{
 **    *    ***  **         ** a, b, c, D, spD, x1, x2;
    
   ** *** *    *  *  ** *  **  * ********* %lf %lf", &a, &b ,&c)==3)
    {
  * * * *  * *  *   * * *** **       *   *****  ******  - (4*a*c);
  *  *** ***  ** ***   * ***** ** *   * *** ** * * ** **
 *   * * *  *  *********  *    *   **  ** *   *   ** * **  ** *   *  *
 * * * **  *   * **** ** *** *   *** * * *  *   **   
*    * **     * *****  *   ***  ** ** **     * * * ***   ******** * ** *  **  * * * * * 
  ***  *   *  * *** * *     ** * **     ** * *  ** *  *    ****  *  ***      ***** ***  * (-b+spD)/(2*a);
*  * * **  * * ** *   **** * *   *  ****  **  ******** **   *   ** ** ** **   (-b-spD)/(2*a);
 ***    *** *** *  * ******* ******** ** *** * *  *        **  *** ****   * **  ** (x1==x2){
 **** *   * * *   * ** *     *  ** ** ** ** ***    *** *  *  **  *  **   * **    * * **  *********     *    *** * *  *   * * of %.2lfx^2 + %.2lfx + %.2lf = 0 are real and same\nx1 = x2 = %.2lf\n",a,b,c,x1);
 *** ** **  ***** ** **  *   ** ****   *  ****    *     ** ***  ** * *  **     
*  *   ****   * *** ********* *** *** *   * *  * **   ***** ****** ** ** *  * * **    * {
 * **  * ***** ****   *** ********    **        * * * *****   *  ** *  ** *   *****   **   ** *   *        * **   *** **  of %.2lfx^2 + %.2lfx + %.2lf = 0 are real and different\nx1 = %.2lf\nx2 = %.2lf\n",a,b,c,x1,x2);
 *** ******    ** *  * *** *****  * *   ** *     **  *     *** ** * *  *  ***       ***
 * * * * *  ****   **  ***  **     * **   *  * * ***   **** * 
*** ** * *   *** ***  * * * **  ** **  * * **   * **      ***  if(D==0)
 ***  *  ***  *** ******** ***** * *      *  *  * *** *
*    * ** ***   * * ** ** *  *  * **   * ****** ** **     *  * *  *    **    *   **  * *  (-b)/(2*a);
 * *******    ***  ** ** ***  **    * *** ***  *  * * **  * **   ** *  ***  * 
 *   *** *     **       ***  *  *** ***** ***   * * **     **   **   ** **   **
 ** **    *   *    *    ****  ** * **  * ** ****** ****  ** *   **  * * *       * ******    *     of %.2lfx^2 + %.2lfx + %.2lf = 0 are real and same\nx1 = x2 = %.2lf\n",a,b,c,x1);
 ** **     *** **** ***   *  *  * *  *****  *   **  ****  *  **  *  * ***  ** ****
*  ***** **      *  *     *** **     * ****** **    *** **   **   *  **** * * ***  *  **  
 *** *    *   *   *  * ** * * **      * * *  ***  ** **  * * ***     **   ***
  *      ***  * *   *   * ** *** *      * * *  ****   **** * *  *    ** ****  
 ****** *    *      *  *****     *** ** *  *** * * ****   **  **** **  * * **  * *** *  *   ** *   of %.2lfx^2 + %.2lfx + %.2lf = 0 are real and same\nx1 = x2 = %.2lf\n",a,b,c,x1);
 ********     ** **  ***  ****     **   *  ** * *  **  *   *  *  *   ***   
 ***   *       ****  **** *** *  **** **** ***   *     **  
*   *  **   * ****     ** *    * *** *  **  **     *   * if(D<0)
 *** * ** ** *** *  **    *****  *         ***  **   * * *    
 *  ** *** ** *     *******  *  ******   * ** *    *   *    ***     ** * *  **** (-b)/(2*a);
 ** ***      *  ***     ** **** * ******** *  **    ** ****** *   ** -x1;
    * *  ****  *** ***  *  * **     *   * *     *******    * ** **  *  * *** **   ** *  *   ** of %.2lfx^2 + %.2lfx + %.2lf = 0 are complex and different\nx1 = %.2lf+%.2lfi\nx2 = %.2lf%.2lfi",a,b,c,x1,x2,x1,x1);
*   **** ****  *   ******* * * *   ***** * *** ** 
    * * *** *** * ** *   
    
** * **  ** ****  **   *  ***  *** *** ** *    
**** *     * ** *** *** *   *  0;
}
answered by (-249 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Correct output
Case 3: Wrong output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
   *   **   * * * *  **
   ** *******   **** *  
 ***  **** **  *  ** *  * 
int  *  **    
*   *** ** * ****** **  ** a, b, c, D, spD, x1, x2;
**   **   ***  ***  * *          
 *  *       **   *  *       ***      *   %lf ***  * **  **   &b     **  *  *   
  ** **  *   {
* **** ***** ** *** *    *   * **   * *     **       *******    - (4*a*c);
  ** ** *   *  **   * ** ***  **   ******    ****  * *  **  **   
  ******       ****   **
    * **       {
**  ***     *    *           ***  ** **  *  * *    *  *  * 
*  * ***  * *  ** *  * *** * *** ** ** * ** ****   **** *   x1= **   * * ** 
* * * **   * *** *  ** * **  *   ** *****  ****    ** * *   x2= ***** ** 
****** *  * ***  *  *  ** * *   ** *   * *  *** **  ***     if (x1==x2){
** ** ****  *  * **  * * * * **** **  * * * ** *    * * *  *   *       * ******  * ** * of %.2lfx^2 + %.2lfx + %.2lf = 0 are real and same\nx1 = x2 =   ** ** *  **  *** 
 * ** **  * * * ** **   * *    *      **      * *  ** **     ***** *   **
* *  ** * ****     ** *  *    *  *   ***    * *          else {
 **        *** *  *  *** *** ***      ** *** *   ** * * *  ** *   *  * *  *  *      *         ******   ***** of %.2lfx^2 + %.2lfx + %.2lf = 0 are real and       *** = %.2lf\nx2 = ** **  *   * *  * ** ** 
  *  **   * ***    *  ***   **    ** * ***     *******   *** * }
* ** **   *** * **    *  ***  **  ****** * * ***  * * 
******** * *** *   **** ** * ******* *** **    **  **  if(D==0)
    *     * * *   **  **   {
         **     *    *** * * **   *  **  *      *   ** *** *  *** * ****  **   *****     *    * 
 **   * ** * **     *  * **    * *   **  ** ** ***  **  **       ** ****   ***  * * *** 
* **          *        {
* * * **    **      * ** ****     ***  ****   *      *** *    * **  ** * *    **** *** **  **  ***** of %.2lfx^2 + %.2lfx + %.2lf = 0 are real and same\nx1 = x2 = *** *   **** *  **
  ****  **   * *   ** *** *** ** ****** **   **  *     **  * *** ***   *  *
** ***  **  * ************   * * * ********* *  * ** ** ** ****   * * ** ***   
  ***** * * *****   **    *   *    ***** * * ***       *** * **  ***** * * 
  ****  *           {
 *  * * * ** ****** *   ** ** *  **  **    * *  * ****  *   *  * *   ** *  *   * ** *   **  * of %.2lfx^2 + %.2lfx + %.2lf = 0 are real and same\nx1 = x2 = *** **  *  *** ***     
*** **  * **  **   ****   ****  *   *****       *  ***  ****  *  * **  ** *** *****  * 
 *  * ******* *    ****** * *  **      *   * *  *    *
 *   **** ** ** *  *   *** *    * *      *    * *   **  * **  **  **
**  *         *******   
            x1=     *   
   *** *     *** *  * * ** *  **   x2= -x1;
 * * *  * **  * ** **  ******** *   ** ***       *    **  * *** **** ** ***  ***** * ** ****** of %.2lfx^2 + %.2lfx + %.2lf = 0 are complex and  * ** *  = ** ** **     =  *  * *   * * * ***** **** * 
  *       **   *       * ****    * ** *  * *  * ********   *  
*** **** **** ** * * **  *** 
* *** *   **   ** * * *
   * **   *** *    **  *   ***  * **** * ***   **
*  ** * *  **  * ** *** **** * * *  *  0;
}
answered by (-249 points)
0 0
/tmp/ccvUqbC2.o: In function `main':
prog.c:(.text+0x6e): undefined reference to `sqrt'
collect2: error: ld returned 1 exit status
commented by (4.3k points)
0 0
-----------Re-judge-----------
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
commented by (4.3k points)
0 0
-----------Re-judge-----------
Case 0: Wrong output
Case 1: Wrong output
Case 2: Correct output
Case 3: Wrong output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
*   **  * ** **    
  **   ** ***   *****
int main(){
*      *       * *****  **  * a,b,c;
 ** * * *  * * ** * **** *** D;
**  * ** *    * *  *   **  *** **   * %lf   * **  ** ** * *   * * **** * * *   
  * ****   *** *    * ***  **  - 4*a*c ;

***** **  **  *  * *     ** ***  *  *** *   *  of %.2fx^2 + %.2fx + %.2f = 0  **  ***  **

*    *** * **  * *** ** *    *  *** *
 *    **   ** *     **  * *     ***  *  * ** ** *** *  ** ***  * * complex and  *  **  *  *
** **  *   *  ********  ****    * **  ***** *****   *** *   ** *  * **  **  = * ****  ***** ** **  (-b) / (2*a) ), sqrt(-D) / (2*a) );
   * * * * ****  ** ** ** * **  *** * ***  * ***** * **   *     = *     ********    * (-b) / (2*a) ), sqrt(-D) / (2*a) );
 ***  * ** * ** ** *   ***
**    **   ***  * * ***    ** if(D==0){
**** * ** *** *  ** *   *    **  * * ********* ***** ** ****       real and same\n");
  * *   *****  *  ***  ***    ** ******   **** ** ** **   * * = x2 = %.2f",( (-b) / (2*a) ) );
*** **  ** * *  **  * * ***  *  **
    *** * *   *   *  * **  ******    **
 * **     **    *  * **  *      *  * *   ******** * ** * *** ** * ***  real and   * * ** * * *   
****  * * ** *  ** * * *    * * * *   *** ***   **    *     * * = %.2f\n",( ((-b) + sqrt(D)) / (2*a) ) );
* *  *    *****         ***   * * * **  ***** *  **  *   *  * **  = %.2f", ( ((-b) - sqrt(D)) / (2*a) ) );
****  * ** * **    ****  * * *

  **     ** **  * ******      0;
}
answered by (-116 points)
0 0
/tmp/cc8OPUJA.o: In function `main':
prog.c:(.text+0x51): undefined reference to `pow'
prog.c:(.text+0xdd): undefined reference to `sqrt'
prog.c:(.text+0x13f): undefined reference to `sqrt'
prog.c:(.text+0x213): undefined reference to `sqrt'
prog.c:(.text+0x26a): undefined reference to `sqrt'
collect2: error: ld returned 1 exit status
commented by (4.3k points)
0 0
/tmp/ccLeUfQ5.o: In function `main':
prog.c:(.text+0x51): undefined reference to `pow'
prog.c:(.text+0xdd): undefined reference to `sqrt'
prog.c:(.text+0x13f): undefined reference to `sqrt'
prog.c:(.text+0x213): undefined reference to `sqrt'
prog.c:(.text+0x26a): undefined reference to `sqrt'
collect2: error: ld returned 1 exit status
commented by (4.3k points)
0 0
-----------Re-judge-----------
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
commented by (4.3k points)
0 0
-----------Re-judge-----------
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 <math.h>
int main()
{
*     *** ** * **** *  *   *** a,b,c,x,y,d;
 **  **** *** *    ** * ** ** *** %f  * **     *  ***  *   ***  **
**   ** **  * *** * ** *   ** 
*** *  * ***  ***** * ***       *  *****  ***
  * ** *****  * * **  *   *  ** * *  *  ** *
* ****   *  ***** **  *   * **  (d>0){
 * ****   *    * * **  * *   ** ***     *  of %.2fx^2 + %.2fx + %.2f = 0 are real and    *     *  **** 
*  * *** *  ** * * *  * **   *     *  = %.2f\nx2 = %.2f",x,y);
 **    ****  * ** ***
** ***  **    ****   ** * *     * * if (d==0){
***  **** ***** * ***  * * * *    * ** ** of %.2fx^2 + %.2fx + %.2f = 0 are real and    ******* **  * 
 * **  * ** * ***  ***   ***** ****  **  = x2 = %.2f",x);
    *     *  * *     ***    
***  **   * * *     *  
  ***      * *  ****** * ** *  * * * 
 ** ***    **     *   *    ** * *  *   ***  ***  of %.2fx^2 + %.2fx + %.2f = 0 are complex and  * ** ** *  ** ******  
* *  *   * ******* * ** **  **** *  
 * * *        *** ***  ** ** * * **** **   =  ** *   * *   * 
* **   *  ** *  * * *** **    *   *** **  =   **  * ****  **  
 * * **  *   **  *    * ** 

 ** ** ****   * * *       *    0;
}
answered by (54 points)
1 0
/tmp/ccheVQNV.o: In function `main':
prog.c:(.text+0x87): undefined reference to `sqrt'
prog.c:(.text+0xd5): undefined reference to `sqrt'
prog.c:(.text+0x21f): undefined reference to `sqrt'
collect2: error: ld returned 1 exit status
commented by (4.3k points)
0 0
/tmp/ccJPGNPl.o: In function `main':
prog.c:(.text+0x87): undefined reference to `sqrt'
prog.c:(.text+0xd5): undefined reference to `sqrt'
prog.c:(.text+0x21f): undefined reference to `sqrt'
collect2: error: ld returned 1 exit status
commented by (4.3k points)
0 0
-----------Re-judge-----------
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
commented by (4.3k points)
0 0
-----------Re-judge-----------
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:172.71.254.149
©2016-2024

No related questions found

12,783 questions
183,443 answers
172,219 comments
4,824 users