[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:172.71.254.231
©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 | 213 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 | 274 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