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

0 like 1 dislike
12k 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 | 12k 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:172.69.130.53
©2016-2025

No related questions found

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