[AD] 20171109 作業1

2 like 0 dislike
1.4k views
小學一年級的數學

剛開始學習數學的時候，我們都是從個位數的加減乘除開始學習的，請寫一個程式，教你的程式學會個位數的加減乘除。

輸入說明：

程式會輸入三個字元，代表一個算式，會用下面的樣式呈現

運算元 運算子 運算元

其間會用單一個空白隔開，運算元是一個個位數的數子，運算子可能是+-*/中的任何一個。

輸出說明：

請輸出輸入算式的結果到整數位數

輸入範例：

1 +  2

輸出範例：

3
[Exercise] Coding (C) - asked in 2017-1 程式設計(一)AD by (18k points)
ID: 31085 - Available when: Unlimited - Due to: Unlimited
edited by | 1.4k views

23 Answers

0 like 0 dislike 
Hidden content!
#include     **  ***    
#include   **** * *   * *
int main(int argc, char const *argv[])
{
* *   *   ** ** int  **
*     *  ** *   * char c;

 **   **   **     ** **    %c  *  ***  *** *  *** * *  * 
**  * **  * * * *   * *  *** *    switch(c)
  ***   *    *****  * **       * ** ** {
*  *  * * **     ***** ** *   ***  *     * case '+':
*******  * **  *   *****   *** *       ***     *  * *  * *   ** ans=a+b;
 **** * *  *** ** ** *  *  *  *  ***       ** *  *  **  *   **  break;
   ** ***** * *****  *    ***  *** ** *  * **  *  case '*':
*   **      *    *   **   ***     ****   * * * *  ***** * ****  ans=a*b;
 *  * * * *  *  *    *  **   ** ***  **  *****  *   **  ****  ** break;
 ** *** *   **  *  * *     *  **    *  *  ** ** *** case '-':
 ** *          * ******  **    ** ***   **** *  * *      * *  ans=a-b;
 * *  *   * *   *     *  ***   ***  * *  **  **  **  *  * *      break;
* ** *  *   **    ** ***     * *  * *  * ** * *  ***** case '/':
 *  *  ** * *      *  *  * ***     *   *** * **  *       **  ans=a/b;
   ****    ****    ****   *    *  * ***   **       * **  *    break;
** **   * ** *   *** * ** ***      *  **  default:
****** *        ** *** * *  ******  **** *  *  * *     *    * ** *  *  ** **** * * *   * *   
 *   *   ** **  *** ***      **   * *    *   **   ****** ***  * * break;
   **     ***  **  *   * *     * }

* ****    *  *  *  *   *  **     * *     *  );

 ****  ***** return 0;
}
answered by (114 points)
0 0
prog.c:1:1: error: expected identifier or '(' before numeric constant
 4#include <stdio.h>
 ^
prog.c:1:2: error: stray '#' in program
 4#include <stdio.h>
  ^
In file included from prog.c:2:0:
/usr/include/string.h:43:8: error: unknown type name 'size_t'
        size_t __n) __THROW __nonnull ((1, 2));
        ^~~~~~
/usr/include/string.h:46:56: error: unknown type name 'size_t'
 extern void *memmove (void *__dest, const void *__src, size_t __n)
                                                        ^~~~~~
/usr/include/string.h:62:42: error: unknown type name 'size_t'
 extern void *memset (void *__s, int __c, size_t __n) __THROW __nonnull ((1));
                                          ^~~~~~
/usr/include/string.h:65:56: error: unknown type name 'size_t'
 extern int memcmp (const void *__s1, const void *__s2, size_t __n)
                                                        ^~~~~~
/usr/include/string.h:92:48: error: unknown type name 'size_t'
 extern void *memchr (const void *__s, int __c, size_t __n)
                                                ^~~~~~
/usr/include/string.h:129:39: error: unknown type name 'size_t'
         const char *__restrict __src, size_t __n)
                                       ^~~~~~
/usr/include/string.h:137:9: error: unknown type name 'size_t'
         size_t __n) __THROW __nonnull ((1, 2));
         ^~~~~~
/usr/include/string.h:143:57: error: unknown type name 'size_t'
 extern int strncmp (const char *__s1, const char *__s2, size_t __n)
                                                         ^~~~~~
/usr/include/string.h:150:8: error: unknown type name 'size_t'
 extern size_t strxfrm (char *__restrict __dest,
        ^~~~~~
/usr/include/string.h:151:40: error: unknown type name 'size_t'
          const char *__restrict __src, size_t __n)
                                        ^~~~~~
/usr/include/string.h:280:8: error: unknown type name 'size_t'
 extern size_t strcspn (const char *__s, const char *__reject)
        ^~~~~~
/usr/include/string.h:284:8: error: unknown type name 'size_t'
 extern size_t strspn (const char *__s, const char *__accept)
        ^~~~~~
/usr/include/string.h:394:8: error: unknown type name 'size_t'
 extern size_t strlen (const char *__s)
        ^~~~~~
/usr/include/string.h:446:33: error: unknown type name 'size_t'
 extern void __bzero (void *__s, size_t __n) __THROW __nonnull ((1));
                                 ^~~~~~
prog.c: In function 'main':
prog.c:8:2: warning: implicit declaration of function 'scanf' [-Wimplicit-function-declaration]
  scanf("%d %c %d",&a,&c,&b);
  ^~~~~
prog.c:8:2: warning: incompatible implicit declaration of built-in function 'scanf'
prog.c:8:2: note: include '<stdio.h>' or provide a declaration of 'scanf'
prog.c:24:5: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
     printf("Wrong input\n");
     ^~~~~~
prog.c:24:5: warning: incompatible implicit declaration of built-in function 'printf'
prog.c:24:5: note: include '<stdio.h>' or provide a declaration of 'printf'
prog.c:28:3: warning: incompatible implicit declaration of built-in function 'printf'
   printf("%d",ans );
   ^~~~~~
prog.c:28:3: note: include '<stdio.h>' or provide a declaration of 'printf'
commented by (4.3k points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
 **  * **  *****  **  
int main()
{
 **  **  *   ** int x,y,z;
 **  * * *  *    char a;
   *    *    *** *   %c * *  ** * * *  * **  * *  * ;
 * ** * * * *        ****  
 ***   **  ***      **  *  ** ***   
*  ****   else
*****     if(a=='+')
   ***    **      ***** *** *** ** *   *
  **    else
* *****  **  * *     *
*   **   **  * * ********  ** * *  ** **  
* ***  *****   else
*        ** ***  *** ***
**** * *  *   *  **   ** * *    *** * *
   * * * *    
 **  *  *  **   ** **     **** * 
 *****       * 
* ** **   * *      * *  *    * 0;
}
answered by (172 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!
 *    *  ** * ** ** ** *
int main()
{
 int a,c,x;

 char b;
  ******* ***     * %c        ***  **  * *******   *   

if(b=='*')
* ****   ****     * * *    
    ***      * *  **** * *   if(b=='-')
   * ***     ****   *** ***  *** **   ***** **  * ** 

      * ****  ***** *** *          * **  if(b=='+')
   *** * ** * * ***    **  *    **  **   *** * ******  *  *  * *  ***

* *  **** *  * * **  * * **   ***** **    **     * **  *  if(b=='/')
 ** **** ** *   *  ******** *** * *    **  ***  *  * * * *  ******* *  ****     *  


**  *** **    * *  ** * ** **    * 
 return 0;
}
answered by (236 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include <string.h>
int main(){
    int a,b;
   *  *      *  *  * *   * ** c;
  * *  ***  **  *  * *  * *    **** %c   *   ***** *  *  *   * ** * *   
*   *   **  * ** *  * ******   **  *  **** *  
*  ** **  **     ** *** * ** ***  *** ****  *** *   * ***   0;
 **      **   * * ******** ***** *  ***  ***  
 *     ****  *  * *   *   ***  *  * **  ** ***    0;
  *** * * ** ***  *   * **   ***** 
  *** **   ***   * **** **      **  ** * *** ***  * *** *       ** *  **** ** **
 *** * * ** *** * *****  *  * *  * if(c=='-')
*  ***     ** ****   ****    ********     *** **  ***     ******** **  *  * *  *    *
    else if(c=='*')
*    **  * *** *** * *** ***  *    *  *** *  * * ** **    ***  *** * *  *      **  * * * 
    else if(c=='/')
 ** *  * *   * * * ** *  ** * ** *  ** *** **  *      *    *****  * * * * * 
  *   ****** *** *  ** * 
  ***  ****** * *** ** *** * *****  *** **  *    **** * 0;
 **   ** * *****     **   **  0;
}
answered by (212 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include <string.h>
int main(){
    int a,b;
***  *** *  *           ***    * c;
    *** *      ******  *  ****** * *** * *  %c * *** *  ********  ***** *
*** * **     ** *  * *  * *  **      *  *  **  ***
* ****  *  **  *  *** ***  * ****** *   ***   *       * 0;
** ** *    **   *    *  ****** *** ***   **   *
 *  *** **  * ** ****   * * *** *** **  **** **** *** * ***** 0;
* * ***  * * *       * *   ****
   * *** ***  ***   * *   *   ***** *****   *    *  *   * ** ** *****  **   * *
**** * *** *** **** ****   *  * if(c=='-')
*** **  *    *** *  *** *  ***     *   *** **  **  * **** **     * *    **   **  *
    else if(c=='*')
*** **   *     * ***** *  * ** * **  **  *** *** ** ******  ***  * * 
    else if(c=='/')
  *    **  *   *** **  *   ***** * *  ****** ****  *  **** * *    *   *  **  ** ** 
* *  *  **  *  **   ****  * * *
*  * *  **  *   ** **   ***  * ******    *  ** * *** *       0;
** **     ** * *  ***  0;
}
answered by (194 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!
 * * ***** * ********
int main()
***  *   * **     
  * *  *** ** *  char a,b,c;
  ****    int ****   ** *
  * ****    *** * 
    * **  ***  %c   ***  * *** ****  **** *** ** 
*  ** * ** *   * *
    ***      * ** if(b == '+')
  * * ** **  {
    * *   ** * *  **** *  *  *  ***  **  ***
* **    ** ** **    *  * ***  **  *   *     *
 * *  *    *  ****** **   * *** * ** *  **  ****
 *   **  * * ***  **** * ***   
   **  * *  **  ****  * *  ***   *** *****  ****     
   *  *  *   }
*    * * * *  *  else if(b == '-')
* ** * *  * *   {
* * **  ****** *   *  ** *       **  *** * **  *  
***     ** *    *   ****  **** ** *   * * *
* * **   *    * *  *  *     *    *  ** *  *  
 **** *       
          ****   ** * ** *   
* *  ***   }
 ***      else if(b == '*')
 * ***    ***** **  {
 * *     * *     * ****   *     *  *   *  **  ***  
* **  *      **     **  *   ******   ****** *   ** *
** *   ***  * ****  ** * * *  * *     **    * 
  **    ** *** ****** **    * 
  **  *            *  **        ** *   * **     *  * *
  *   *** *** * }
     *** * ** else if(b == '/')
 ** *      **** {
 *  *  *  *   *   **  * *  **  *** ***  **** *  
 ****  * **   *   *  ***  *   * *   **** **   ****  
*  * * ****** *  * **  **    ** * **    * * *  ***  *  
**        * **  * *****   * ** **   
*   ***     *  **    *** *   * * *   *    *****   
 *   ***  *****   }
* ** *  *  * * * else
 *     * * ***     {
  ***  **  * ** * * *** * *** * **  *   **** *   *
      **  * ** *   }
 ***      return 0;
*****     * *  
}
answered by (202 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!
* *  **** *** * *  

int ***** * *  ** *
{
  *   ***    char  * ** *** 

* *    *      
 *  ** * *    ch1 = * ****  
****   * ***    ch2 = *******
*  *   *    ch3 =  * *  
  ***       **   * 
*     ** * ** * if( ch2 == 43 )
  * **   ******* ** **  **  * *    *  *     *   
** **     * ***** else if( ch2 == 42)
   *     *   * **    *   * *  *** ***  *  * * * * 
*** *   **** else if( ch2 ==45)
  *   ****   ***** * *   *****  *   *  * 
 *  * * * ****** else if( ch2 == 47)
*  ****   *** **  *    *  *   ***** *** ** * * ***   *
   * * * 
           
* * * **  *    * ** 0;
*     *
answered by (160 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   **   *  * **
{
 ** *  *   **  char  *** * *

 ** *    *  *** * *      * * *  * ***       ***** **   
* ** **         ch1 =   *   
 **  * * * ** ch2 = *** **
 * *     * ** * ch3 =  ** *  
** ***  ** * 
* *** * * * if( ch2 == 43 )
* * *    **  **  ** *  *** *    **  *   * **
*** **     *    else if( ch2 == 42)
 *     ** **  *   * **   ******* *      ***  ** *  *
 ** *** ** else if( ch2 ==45)
    **  **       **      *        ****  ** 
      *   **  *    else if( ch2 == 47)
****       *  *   *      ******** * *  ** *   * * **
**    ** ******* 
 **  ****   
*** *      return 0;
answered by (160 points)
0 1
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!
#include<stdio.h>
#include <stdlib.h>
int main()
{
  **    ** * * ** * ** *** ** **   a,b,c;
** ***  *  ** *   ** ***  * *  ***  **  %c *  ***  * ***   *   *  * **    *****
  *** ****  **    *  **   *** d=a-'0';
*** **     ** *   **  *** ** e=c-'0';
  *    **  ***  * **  *  * *** *
*   * *  *  ***     ***  * ** ***
* ** *** * *  *  * * * **  *   *  * ****   ** * *  * **   * ******* *******      * ***
    }
****  ****  * *  ***   **  ** if(b=='-')
  ** *  ***  * * **   ***** *    *** **** * **  *  * ** * **     **          *    ****
**   * **  * * *  ** * * * * if(b=='*')
** *    **      ** *  *****    * ****   *  **    * **    * *  ***  ** *   ** *****
* **  * * *  ***  *** ***   
*    *   *   *** *  * *  *   *  * *    ** * *** * * *****    *   * ***
 * **  **** ** ********* ** * ** 0;
}
answered by (100 points)
1 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>

int main(void)
{
   * * ***     *****  *    a, c;
  *** *  ***   ***   *   * ***** b;
 *   *     * * **** *       **       %c %d", &a, &b, &c)
 ** * *     *   **** ***       == '+')
 **    ** **** * ** ***** ***        * ****  * * ***        ** ** a+c);
  ** * ******* *    ** **** * if(b == '-')
**     * **  ** ** *     * *  *  **     * *       **     **  *******    a-c);
*  *    *  *  **  ***** *   * * ** if(b == '*')
 * *** * **  ** ******** ** *** **  *   *** *   * *    ***  a*c);
* *** *  * *  * *   **** ** ** if(b == '/')
**  **** *  * * **** *** * *** ***     ** ****   * *   * *   * a/c);
 *   **   *  *******  ** *  *   
* ** *      * ** * * ***
 * *      *  * ** * * **  *   0;
}
answered by (138 points)
0 0
prog.c: In function 'main':
prog.c:8:5: error: expected ';' before 'if'
     if(b == '+')
     ^~
prog.c:10:5: error: 'else' without a previous 'if'
     else if(b == '-')
     ^~~~
commented by (4.3k points)
Page:
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:108.162.216.74
©2016-2024

Related questions

2 like 0 dislike
29 answers
[AD] 20171109 作業3
[Exercise] Coding (C) - asked Nov 9, 2017 in 2017-1 程式設計(一)AD by Shun-Po (18k points)
ID: 31094 - Available when: Unlimited - Due to: Unlimited | 1.7k views
2 like 0 dislike
31 answers
[AD] 20171109 作業2
[Exercise] Coding (C) - asked Nov 9, 2017 in 2017-1 程式設計(一)AD by Shun-Po (18k points)
ID: 31088 - Available when: Unlimited - Due to: Unlimited | 1.8k views
3 like 0 dislike
9 answers
[AD] 20171116 question 1
[Exercise] True/False - asked Nov 16, 2017 in 2017-1 程式設計(一)AD by 楊修俊 (30k points)
ID: 33763 - Available when: 2017-11-16 14:00 - Due to: 2017-11-16 14:30 | 274 views
3 like 0 dislike
9 answers
[AD] 20171116 question 2
[Exercise] True/False - asked Nov 16, 2017 in 2017-1 程式設計(一)AD by 楊修俊 (30k points)
ID: 33764 - Available when: 2017-11-16 14:00 - Due to: 2017-11-16 14:30 | 342 views
1 like 0 dislike
0 answers
[AD] 20180104 作業 1 參考答案
[Resource] asked Jan 4, 2018 in 2017-1 程式設計(一)AD by 楊修俊 (30k points)
ID: 40762 - Available when: Unlimited - Due to: Unlimited | 26 views
12,783 questions
183,443 answers
172,219 comments
4,824 users