[AD] 20171109 作業1

2 like 0 dislike
5k 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 | 5k 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:172.69.58.63
©2016-2025

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 | 7.2k 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 | 7.6k 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 | 1.1k 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 | 1.1k 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
183,442 answers
172,219 comments
4,824 users