10-12 Exercise: A water supply company

1 like 0 dislike
25.4k views

A water supply company charges the water consumption, as follows:

a) Fixed amount of 10$.
b) For the first 30 cubic meters 0.6$/meter.
c) For the next 20 cubic meters 0.8$/meter.  
d) For the next 10 cubic meters 1$/meter.  
e) For every additional meter 1.2$/meter.   

Write a program that reads the water consumption in cubic meters and displays the bill.
寫一個輸入水的用量 輸出水費的程式

Example Input:

25

Output:

Cost: 25.00

Example Input 2:

44

Output:

Cost: 39.20

Example Input 3:
 

75

Output:

Cost: 72.00

 

[Exercise] Coding (C) - asked in Chapter 4: Expressions by (12.1k points)
ID: 26465 - Available when: Unlimited - Due to: Unlimited
edited by | 25.4k views

91 Answers

0 like 0 dislike 
Hidden content!
**  *      * *        *
int main()
{
***   *   **  * **  * * ***   ** a1;
 *    *    *  ** ** *  *** * * * *** *    ***     * 
*  *  **** *  *     ***  ***  *   * < 30)
 * * * **  *** ***  ****     **  *****   ****  * *    *      * **    * ***   ** *   * *   *

* * *  *  *  ****   ***** ** * if(a1 >  ** ** *  ***  * < 50)
******* * *   *    ***** *   ****   *   ** *      * *   **   * *  *  * *     *  *    ***      *

**  ***** *     ** **** ** *  *  * if(a1 >     *  * * *** *  < 60)
**  *   ***  ** *          *******   ***** *   ** ** **     ***    *  *    **** ***    * * 0.6) + (20 *0.8)+(a1 - 60)*1+10);

  **** * **  *  *** * *** **  if(a1 > 60)
 ** **   * ********** ****  * * ** ***  ***  * ** * * *** * *   ****   *****  * *  **   *** %.2f\n",(20 *0.8)+(30 *0.6)+10+(a1 - 60)*1.2+10);
***** **     *  * **  
return 0;
}
answered by (-141 points)
0 1
prog.c: In function 'main':
prog.c:17:1: error: implicit declaration of function 'system' [-Werror=implicit-function-declaration]
 system("pause");
 ^~~~~~
cc1: all warnings being treated as errors
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include   **  *  * ** * 

int main ()
{
***  *    **  **    **** * ** waterUsage;
 *** * *   * * * ****   * ** *   *   Cost;

   **** *****  *** **     **  ** *  *   * * & waterUsage);

*** *  *  ** * **** ***  *** (waterUsage>=0 &&   ***  ** ******  *
* *  **     ** *    * **  * **
 ******* ****   *  * **   **    *  10 + (waterUsage *.6);
**   * ** ** * *      *  ****       *  * *  *   * Cost);
**  *  *    *    *** *** ***


 ** *** *   ** *   *     * * *  * * **   * ** && waterUsage<=50)
****   **   * ** * *   *  * *
*  * **   * ******** *    * ** * 28 + ((waterUsage-30)*0.8);
** *   ** ****** *   ****   * *   ***  * **   *   ***** *  *  Cost);
**     ** **  ****  **** *  

 *  **  *   * *******  * *  ***  *  **** ***    * && ** * ***  **  
 ** *  * *** **** * * *  *** **  * 
  * ****   * ** * *  *  *  **** = 44 + ((waterUsage-50)*1);
 * * *  **  ***  *** **** ** * **  **  * * ** *   
**  ** ***   *** * **** **    

* **    * *  *   *  * *    **** *   *   * ** *** ** * 
*  * ** ** ** ** **    *    ***
 *    *   **** *  * *  * = 54 ** * ****   ***  
      *  *   **  **   *** **     *   *   * ** Cost);
 *** **** * ***   *    *  * *

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













}
answered by (-167 points)
0 0
-----------Re-judge-----------
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
int main(void)
{
** ** ***  * *    *** **  a=0;
  *  *****   *  ****   *  *** * *  cost = 0;
 *  ** *** ** * **   *  * **    *       &a);
    *  *** **     *** ****** (a>60)
*  ******* ** * *   **  
 ***** * * *  * *** * * **    *   *   *    *  ** ****   *   * *** **   * **** * *     
****  * * * * ***   ***  * *** 
  * **  **   **   ***     ***** (a>50 && a<=60)
**  * *  **  * * *   ***      
 *  * * * * *** ***  ** ****  **   * * * *  *    * ***  * *   * **  * * 
  * ***  *   ****    * ***  
 ** * * ****  * * * *    *** (a>30 && a<=50)
 ** *  * ** * * *    * *    * 
*  **   ** *** * ** *** *  * ***  **  *   ***    **** * ***** **  ** *    
***  *  *   ** *     *  ***  * *
  * *** ** * *  *** * *  ** ** (a>0 && a<=30)
 ***    * *  ******  * *   **   
 *  **  *** * ** **     * *  *  * * *  ** *** * **  **   ******   *
* *     * *  ***  **     
  **** ** ** *   *  ** *  ***  *    ** %.2f", cost);
*****   ** *** ***  ** ***  0;
}
answered by (-249 points)
0 0
-----------Re-judge-----------
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
Case 4: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>
int main(void)
{
  ** **** ** * **    ***  ***  a;
  * ** ***  **       *     ** * cost;
 * ** *  ** *   *  * *   *      **  * * *  ***
**   *     *  ** ** * * *  (a>60)
  *    *     *****  * *    **  * **  * *  ****
    *   * *  * *  *  * **    **      ** ** **  * ****** * *  ***      ** * 
*      *****    ** ***   * *  ** **   *
*   *      *** ** **  *** *   (a>50 && a<=60)
***   ***** * * * *  **  *** * *  ** *    *
* ** *  *  *  *  **  * *** * ****   ** * *** *     * ***     * * 
*  ** *******    * *  ***   * * ****     *  
 * *    **** *  **    ** ********** (a>30 && a<=50)
 ** **    *   * ******  *  **    ** *
***** ***  *  * * *   **   ** ****   * * * * *   * ** *  *   
 * * * ****  * ****  ***  **   *  ** *****  ***   
    if (a>0 && a<=30)
   *  *** * ** **  *  * *** * * *   ** *****  
* * *    *     * *  ***  ** * **   ***     **    *  ******  
** ***** * ***  * **** *******       **
 * * ** * **  **   **********  * * ***   %.2f", cost);
*** * *   *** *** * * *   * **** 0;
}
answered by (-249 points)
0 0
prog.c: In function 'main':
prog.c:6:13: error: format '%d' expects argument of type 'int *', but argument 2 has type 'int' [-Werror=format=]
     scanf("%d",a);
             ^
prog.c:6:5: error: 'a' is used uninitialized in this function [-Werror=uninitialized]
     scanf("%d",a);
     ^~~~~~~~~~~~~
cc1: all warnings being treated as errors
commented
0 like 0 dislike 
Hidden content!
    * *
   *
**  * * 
{
    * * 
      **     *   * * ***    *
    **     * ***
        *   *  *       ***   *    * * **
        **  **    ** * *** *** *  **   ***   
         * *  *     * ** ** ** * * * * *** *  *  
        * *  *   **    *** *       *   * * **
        **  ***** * **  ***    * ** +  * *  *** -  * *   * 
   **  **   ** **
              * *  **  *****    ****    **      ** -  **  ***
 *   **  ** *    * 
* **  *
}
answered by (-141 points)
0 0
prog.c:1:9: error: #include expects "FILENAME" or #include ^ prog.c:2:9: error: #include expects "FILENAME" or #include ^ prog.c: In function 'main': prog.c:7:5: error: implicit declaration of function 'scanf' [-Werror=implicit-function-declaration] scanf("%d",&a1); ^~~~~ prog.c:7:5: error: incompatible implicit declaration of built-in function 'scanf' [-Werror] prog.c:7:5: note: include '' or provide a declaration of 'scanf' prog.c:7:17: error: 'amp' undeclared (first use in this function) scanf("%d",&a1); ^~~ prog.c:7:17: note: each undeclared identifier is reported only once for each function it appears in prog.c:7:20: error: expected ')' before ';' token scanf("%d",&a1); ^ prog.c:8:12: error: 'lt' undeclared (first use in this function) if(a1 < 30) ^~ prog.c:8:14: error: expected ')' before ';' token if(a1 < 30) ^ prog.c:9:9: error: implicit declaration of function 'printf' [-Werror=implicit-function-declaration] printf("Cost: %.2f\n",(a1*0.6)+10); ^~~~~~ prog.c:9:9: error: incompatible implicit declaration of built-in function 'printf' [-Werror] prog.c:9:9: note: include '' or provide a declaration of 'printf' prog.c:11:17: error: 'gt' undeclared (first use in this function) else if(a1 > 30&&a1 < 50) ^~ prog.c:11:19: error: expected ')' before ';' token else if(a1 > 30&&a1 < 50) ^ prog.c:12:9: error: incompatible implicit declaration of built-in function 'printf' [-Werror] printf("Cost: %.2f\n",(30 * 0.6+(a1-30)*0.8)+10); ^~~~~~ prog.c:12:9: note: include '' or provide a declaration of 'printf' prog.c:14:19: error: expected ')' before ';' token else if(a1 > 50&&a1 < 60) ^ prog.c:15:9: error: incompatible implicit declaration of built-in function 'printf' [-Werror] printf("Cost: %.2f\n",(30 * 0.6) + (20 *0.8)+(a1 - 60)*1+10); ^~~~~~ prog.c:15:9: note: include '' or provide a declaration of 'printf' prog.c:17:19: error: expected ')' before ';' token else if(a1 > 60) ^ prog.c:18:13: error: incompatible implicit declaration of built-in function 'printf' [-Werror] printf("Cost: %.2f\n",(20 *0.8)+(30 *0.6)+10+(a1 - 60)*1.2+10); ^~~~~~ prog.c:18:13: note: include '' or provide a declaration of 'printf' prog.c:19:1: error: implicit declaration of function 'system' [-Werror=implicit-function-declaration] system("pause"); ^~~~~~ cc1: all warnings being treated as errors
commented
0 0
Your program was not runnable because of the system fault, please submit again.

Sorry for the inconvenience
commented by (9.9k points)
0 0
prog.c:1:9: error: #include expects "FILENAME" or #include ^ prog.c:2:9: error: #include expects "FILENAME" or #include ^ prog.c: In function 'main': prog.c:7:5: error: implicit declaration of function 'scanf' [-Werror=implicit-function-declaration] scanf("%d",&a1); ^~~~~ prog.c:7:5: error: incompatible implicit declaration of built-in function 'scanf' [-Werror] prog.c:7:5: note: include '' or provide a declaration of 'scanf' prog.c:7:17: error: 'amp' undeclared (first use in this function) scanf("%d",&a1); ^~~ prog.c:7:17: note: each undeclared identifier is reported only once for each function it appears in prog.c:7:20: error: expected ')' before ';' token scanf("%d",&a1); ^ prog.c:8:12: error: 'lt' undeclared (first use in this function) if(a1 < 30) ^~ prog.c:8:14: error: expected ')' before ';' token if(a1 < 30) ^ prog.c:9:9: error: implicit declaration of function 'printf' [-Werror=implicit-function-declaration] printf("Cost: %.2f\n",(a1*0.6)+10); ^~~~~~ prog.c:9:9: error: incompatible implicit declaration of built-in function 'printf' [-Werror] prog.c:9:9: note: include '' or provide a declaration of 'printf' prog.c:11:17: error: 'gt' undeclared (first use in this function) else if(a1 > 30&&a1 < 50) ^~ prog.c:11:19: error: expected ')' before ';' token else if(a1 > 30&&a1 < 50) ^ prog.c:12:9: error: incompatible implicit declaration of built-in function 'printf' [-Werror] printf("Cost: %.2f\n",(30 * 0.6+(a1-30)*0.8)+10); ^~~~~~ prog.c:12:9: note: include '' or provide a declaration of 'printf' prog.c:14:19: error: expected ')' before ';' token else if(a1 > 50&&a1 < 60) ^ prog.c:15:9: error: incompatible implicit declaration of built-in function 'printf' [-Werror] printf("Cost: %.2f\n",(30 * 0.6) + (20 *0.8)+(a1 - 60)*1+10); ^~~~~~ prog.c:15:9: note: include '' or provide a declaration of 'printf' prog.c:17:19: error: expected ')' before ';' token else if(a1 > 60) ^ prog.c:18:13: error: incompatible implicit declaration of built-in function 'printf' [-Werror] printf("Cost: %.2f\n",(20 *0.8)+(30 *0.6)+10+(a1 - 60)*1.2+10); ^~~~~~ prog.c:18:13: note: include '' or provide a declaration of 'printf' prog.c:19:1: error: implicit declaration of function 'system' [-Werror=implicit-function-declaration] system("pause"); ^~~~~~ cc1: all warnings being treated as errors
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
****  
**   * 
{
    *  
     * ** ** *   **     
     *  *  ** * 
      * ***  * ****     * **  * * *   ****
   * ** *   ** ** ****  **    *****          
          * * *   *** **  *  * * * ** * ** * *   
   * * * **        * **  **   * *  **** * 
        *** * *   *    *   *    + *  **   - *** ****
    * *  **  ** *  
               *   *  *    * *** * * **   ****    * -  *  * *
*** *** ** *  **** 
**   
}
answered by (-141 points)
0 0
prog.c:1:9: error: #include expects "FILENAME" or #include ^ prog.c: In function 'main': prog.c:6:5: error: implicit declaration of function 'scanf' [-Werror=implicit-function-declaration] scanf("%d",&a1); ^~~~~ prog.c:6:5: error: incompatible implicit declaration of built-in function 'scanf' [-Werror] prog.c:6:5: note: include '' or provide a declaration of 'scanf' prog.c:6:17: error: 'amp' undeclared (first use in this function) scanf("%d",&a1); ^~~ prog.c:6:17: note: each undeclared identifier is reported only once for each function it appears in prog.c:6:20: error: expected ')' before ';' token scanf("%d",&a1); ^ prog.c:7:12: error: 'lt' undeclared (first use in this function) if(a1 < 30) ^~ prog.c:7:14: error: expected ')' before ';' token if(a1 < 30) ^ prog.c:8:9: error: implicit declaration of function 'printf' [-Werror=implicit-function-declaration] printf("Cost: %.2f\n",(a1*0.6)+10); ^~~~~~ prog.c:8:9: error: incompatible implicit declaration of built-in function 'printf' [-Werror] prog.c:8:9: note: include '' or provide a declaration of 'printf' prog.c:10:17: error: 'gt' undeclared (first use in this function) else if(a1 > 30&&a1 < 50) ^~ prog.c:10:19: error: expected ')' before ';' token else if(a1 > 30&&a1 < 50) ^ prog.c:11:9: error: incompatible implicit declaration of built-in function 'printf' [-Werror] printf("Cost: %.2f\n",(30 * 0.6+(a1-30)*0.8)+10); ^~~~~~ prog.c:11:9: note: include '' or provide a declaration of 'printf' prog.c:13:19: error: expected ')' before ';' token else if(a1 > 50&&a1 < 60) ^ prog.c:14:9: error: incompatible implicit declaration of built-in function 'printf' [-Werror] printf("Cost: %.2f\n",(30 * 0.6) + (20 *0.8)+(a1 - 60)*1+10); ^~~~~~ prog.c:14:9: note: include '' or provide a declaration of 'printf' prog.c:16:19: error: expected ')' before ';' token else if(a1 > 60) ^ prog.c:17:13: error: incompatible implicit declaration of built-in function 'printf' [-Werror] printf("Cost: %.2f\n",(20 *0.8)+(30 *0.6)+10+(a1 - 60)*1.2+10); ^~~~~~ prog.c:17:13: note: include '' or provide a declaration of 'printf' prog.c:18:1: error: implicit declaration of function 'system' [-Werror=implicit-function-declaration] system("pause"); ^~~~~~ cc1: all warnings being treated as errors
commented
0 like 0 dislike 
Hidden content!
**   *
**** * * 
{
     *    
     ** * *   **   ***
    **  *** *  
          ***** * *  * *** * *  **    **
     *     *   ***       * *  ***    
         * **** **  *** *  **   * * *   *  ***   * *
     **    **** **  * **   *  *  * 
          *  **   ** ** *   *    * *  *  + ** * *** -    ** *
    ** * *  ** *  *  * 
             **  *  * ** * ****** **  * *   *  *    - * **  ** 
       **  * * * *
 **  *
}
answered by (-141 points)
0 0
prog.c:1:9: error: #include expects "FILENAME" or #include ^ prog.c: In function 'main': prog.c:6:5: error: implicit declaration of function 'scanf' [-Werror=implicit-function-declaration] scanf("%d",&a1); ^~~~~ prog.c:6:5: error: incompatible implicit declaration of built-in function 'scanf' [-Werror] prog.c:6:5: note: include '' or provide a declaration of 'scanf' prog.c:6:17: error: 'amp' undeclared (first use in this function) scanf("%d",&a1); ^~~ prog.c:6:17: note: each undeclared identifier is reported only once for each function it appears in prog.c:6:20: error: expected ')' before ';' token scanf("%d",&a1); ^ prog.c:7:12: error: 'lt' undeclared (first use in this function) if(a1 < 30) ^~ prog.c:7:14: error: expected ')' before ';' token if(a1 < 30) ^ prog.c:8:9: error: implicit declaration of function 'printf' [-Werror=implicit-function-declaration] printf("cost: %.2f\n",(a1*0.6)+10); ^~~~~~ prog.c:8:9: error: incompatible implicit declaration of built-in function 'printf' [-Werror] prog.c:8:9: note: include '' or provide a declaration of 'printf' prog.c:10:17: error: 'gt' undeclared (first use in this function) else if(a1 > 30&&a1 < 50) ^~ prog.c:10:19: error: expected ')' before ';' token else if(a1 > 30&&a1 < 50) ^ prog.c:11:9: error: incompatible implicit declaration of built-in function 'printf' [-Werror] printf("cost: %.2f\n",(30 * 0.6+(a1-30)*0.8)+10); ^~~~~~ prog.c:11:9: note: include '' or provide a declaration of 'printf' prog.c:13:19: error: expected ')' before ';' token else if(a1 > 50&&a1 < 60) ^ prog.c:14:9: error: incompatible implicit declaration of built-in function 'printf' [-Werror] printf("cost: %.2f\n",(30 * 0.6) + (20 *0.8)+(a1 - 60)*1+10); ^~~~~~ prog.c:14:9: note: include '' or provide a declaration of 'printf' prog.c:16:19: error: expected ')' before ';' token else if(a1 > 60) ^ prog.c:17:13: error: incompatible implicit declaration of built-in function 'printf' [-Werror] printf("cost: %.2f\n",(20 *0.8)+(30 *0.6)+10+(a1 - 60)*1.2+10); ^~~~~~ prog.c:17:13: note: include '' or provide a declaration of 'printf' prog.c:18:1: error: implicit declaration of function 'system' [-Werror=implicit-function-declaration] system("pause"); ^~~~~~ cc1: all warnings being treated as errors
commented
0 like 0 dislike 
Hidden content!
  ***
* *    *
***      *** 
  *   y  *  ***
     z *   *   *  ** *** *
*  * ***
{
  *  * **
     * * *** *   *******   
*     *  *  * **
        ***  *  *  * **   * ** 
   *  *  **     **    * **  **  *   **  ****  *
        *****  **       **  * * * **      * 
   *  * **    *** ** ** * **** **  *  ***  * 
        *** **** * *  ** ** * +   * *  *   * 
   **    *  ****  **
*              **  **    * *  **     ****  *
      
}
answered by (-141 points)
0 0
prog.c:1:9: error: #include expects "FILENAME" or #include ^ prog.c: In function 'main': prog.c:9:5: error: implicit declaration of function 'scanf' [-Werror=implicit-function-declaration] scanf("%d",&a1); ^~~~~ prog.c:9:5: error: incompatible implicit declaration of built-in function 'scanf' [-Werror] prog.c:9:5: note: include '' or provide a declaration of 'scanf' prog.c:9:17: error: 'amp' undeclared (first use in this function) scanf("%d",&a1); ^~~ prog.c:9:17: note: each undeclared identifier is reported only once for each function it appears in prog.c:9:20: error: expected ')' before ';' token scanf("%d",&a1); ^ prog.c:10:12: error: 'lt' undeclared (first use in this function) if(a1 < 30) ^~ prog.c:10:14: error: expected ')' before ';' token if(a1 < 30) ^ prog.c:11:9: error: implicit declaration of function 'printf' [-Werror=implicit-function-declaration] printf("Cost: %.2f",(a1*0.6)+n); ^~~~~~ prog.c:11:9: error: incompatible implicit declaration of built-in function 'printf' [-Werror] prog.c:11:9: note: include '' or provide a declaration of 'printf' prog.c:13:17: error: 'gt' undeclared (first use in this function) else if(a1 > 30&&a1 < 50) ^~ prog.c:13:19: error: expected ')' before ';' token else if(a1 > 30&&a1 < 50) ^ prog.c:14:9: error: incompatible implicit declaration of built-in function 'printf' [-Werror] printf("Cost: %.2f",(x+(a1-30)*0.8)+n); ^~~~~~ prog.c:14:9: note: include '' or provide a declaration of 'printf' prog.c:16:19: error: expected ')' before ';' token else if(a1 > 50&&a1 < 60) ^ prog.c:17:9: error: incompatible implicit declaration of built-in function 'printf' [-Werror] printf("Cost: %.2f",x + y+(a1 - 60)*1+n); ^~~~~~ prog.c:17:9: note: include '' or provide a declaration of 'printf' prog.c:19:19: error: expected ')' before ';' token else if(a1 > 60) ^ prog.c:20:13: error: incompatible implicit declaration of built-in function 'printf' [-Werror] printf("Cost: %.2f",z+(a1 - 60)*1.2+n); ^~~~~~ prog.c:20:13: note: include '' or provide a declaration of 'printf' cc1: all warnings being treated as errors
commented
0 like 0 dislike 
Hidden content!
 *  *
    *   
**      * * ***
 *    y   ** 
** ** z *** **     **
*  * 
{
  *      
      *   *  ** **     * ***
   **** **  ** * 
        * * *    ***  *  * *  *****
   ** * ***   ** *  * ** **** ** **  ****  *
        ** *     * *  *** * *** *** 
   * *** *   *     **    **   ****   *      *
        * *** *  * *     * * + *   *    * 
*  * *  *  * * ****  **
  *         *   ***      ****  ***  ** * * 
 ** * **
}
answered by (-141 points)
0 0
prog.c:1:9: error: #include expects "FILENAME" or #include ^ prog.c: In function 'main': prog.c:9:5: error: implicit declaration of function 'scanf' [-Werror=implicit-function-declaration] scanf("%d",&a1); ^~~~~ prog.c:9:5: error: incompatible implicit declaration of built-in function 'scanf' [-Werror] prog.c:9:5: note: include '' or provide a declaration of 'scanf' prog.c:9:17: error: 'amp' undeclared (first use in this function) scanf("%d",&a1); ^~~ prog.c:9:17: note: each undeclared identifier is reported only once for each function it appears in prog.c:9:20: error: expected ')' before ';' token scanf("%d",&a1); ^ prog.c:10:12: error: 'lt' undeclared (first use in this function) if(a1 < 30) ^~ prog.c:10:14: error: expected ')' before ';' token if(a1 < 30) ^ prog.c:11:9: error: implicit declaration of function 'printf' [-Werror=implicit-function-declaration] printf("cost: %.2f",(a1*0.6)+n); ^~~~~~ prog.c:11:9: error: incompatible implicit declaration of built-in function 'printf' [-Werror] prog.c:11:9: note: include '' or provide a declaration of 'printf' prog.c:13:17: error: 'gt' undeclared (first use in this function) else if(a1 > 30&&a1 < 50) ^~ prog.c:13:19: error: expected ')' before ';' token else if(a1 > 30&&a1 < 50) ^ prog.c:14:9: error: incompatible implicit declaration of built-in function 'printf' [-Werror] printf("cost: %.2f",(x+(a1-30)*0.8)+n); ^~~~~~ prog.c:14:9: note: include '' or provide a declaration of 'printf' prog.c:16:19: error: expected ')' before ';' token else if(a1 > 50&&a1 < 60) ^ prog.c:17:9: error: incompatible implicit declaration of built-in function 'printf' [-Werror] printf("cost: %.2f",x + y+(a1 - 60)*1+n); ^~~~~~ prog.c:17:9: note: include '' or provide a declaration of 'printf' prog.c:19:19: error: expected ')' before ';' token else if(a1 > 60) ^ prog.c:20:13: error: incompatible implicit declaration of built-in function 'printf' [-Werror] printf("cost: %.2f",z+(a1 - 60)*1.2+n); ^~~~~~ prog.c:20:13: note: include '' or provide a declaration of 'printf' cc1: all warnings being treated as errors
commented
0 like 0 dislike 
Hidden content!
#include  ** * * **   ****** 
int main(void)
{

int cm;
float cost;

**    * ** ** * ****  ** * *

if * * * *
{
 *** **   **   ** **      *    * **   * * *** *** * *
}

if   * *   **   * **  *** **   ** 
{

***  **  *        ** **** *  *    *  *** 
}

**  *     * *  ****  **       ** * 
*  ** *
** *  ***  * *   * ** *** *   * ** ** ***  * ****  *  
 }


if (cm>0 * * *  ***         *  
 **  ***        *     * * 
  ** ***   *    *   * *          * *    *    *   * * *
**  **  **    *  ** *  **  ** ***
 *    *  ** **  *   * **  *  cost);



return 0;
}
answered by (-249 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
Case 4: Wrong output
commented
Page:
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:104.23.243.109
©2016-2026

Related questions

3 like 0 dislike
87 answers
10/12 Exercise: Complete a program with output format
[Exercise] Coding (C) - asked Oct 12, 2017 in Chapter 3: Formatted Input/Output by thopd (12.1k points)
ID: 26463 - Available when: Unlimited - Due to: Unlimited | 20.2k views
3 like 0 dislike
86 answers
10-05: A program that reads the exams result and displays the percentages.
[Exercise] Coding (C) - asked Oct 5, 2017 in Chapter 4: Expressions by thopd (12.1k points)
ID: 25730 - Available when: Unlimited - Due to: Unlimited | 18.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users