10-12 Exercise: A water supply company

1 like 0 dislike
3.1k 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 | 3.1k 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:172.71.254.231
©2016-2024

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 | 2.7k 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 | 2.6k views
12,783 questions
183,443 answers
172,219 comments
4,824 users