[AD] 20171109 作業1

2 like 0 dislike
1k 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 | 1k 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:172.69.59.85
©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 | 1.2k 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 | 1.4k 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 | 217 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 | 279 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