[AD] 20171109 作業1

2 like 0 dislike
2.4k 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 | 2.4k 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:172.70.179.79
©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 | 3k 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 | 3.4k 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 | 503 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 | 551 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