[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:172.70.127.4
©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