[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:172.70.130.149
©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