[AD] 20171116 作業 2

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字串比大小

字串也是可以比大小的，通常都是透過ASCII碼來判斷字串的大小

請寫一個程式依照下列的規則判斷字串的大小

1. 不分大小寫 "a" 跟 "A" 一樣大

2. "a" > "b"

3. "a" > "aa"

輸入說明：

會輸入兩個字串，臉字串間用空白隔開

輸出說明：

請依照範例輸出兩字串的大小關係

輸入範例1：

book cook

輸出範例1：

book > cook

輸入範例2：

being be

being < be

輸入範例3：

include INclUdE

輸出範例3:

include == INclUdE
[Exercise] Coding (C) - asked in 2017-1 程式設計(一)AD by (18k points)
ID: 33758 - Available when: Unlimited - Due to: Unlimited | 6.2k views

20 Answers

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#include <stdio.h>
int main()
{
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prog.c: In function 'main':
prog.c:11:12: warning: multi-character character constant [-Wmultichar]
         x+='a[i]';
            ^~~~~~
prog.c:15:12: warning: multi-character character constant [-Wmultichar]
         y+='b[j]';
            ^~~~~~
commented by (4.3k points)
0 0
Case 0: Wrong output
Case 1: Wrong output
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commented by (4.3k points)
0 0
Case 0: Wrong output
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commented by (4.3k points)
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prog.c: In function 'main':
prog.c:11:12: warning: multi-character character constant [-Wmultichar]
         x+='a[i]';
            ^~~~~~
prog.c:15:12: warning: multi-character character constant [-Wmultichar]
         y+='b[j]';
            ^~~~~~
commented by (4.3k points)
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Hidden content!
#include <stdio.h>
int main()
{
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answered by (236 points)
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prog.c: In function 'main':
prog.c:7:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'int *' [-Wformat=]
     scanf("%s %s",a,b);
             ^
prog.c:7:16: warning: format '%s' expects argument of type 'char *', but argument 3 has type 'int *' [-Wformat=]
     scanf("%s %s",a,b);
                ^
prog.c:11:12: warning: multi-character character constant [-Wmultichar]
         x+='a[i]';
            ^~~~~~
prog.c:15:12: warning: multi-character character constant [-Wmultichar]
         y+='b[j]';
            ^~~~~~
prog.c:17:14: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'int *' [-Wformat=]
     printf("%s %s",a,b);
              ^
prog.c:17:17: warning: format '%s' expects argument of type 'char *', but argument 3 has type 'int *' [-Wformat=]
     printf("%s %s",a,b);
                 ^
commented by (4.3k points)
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Hidden content!
#include <stdio.h>
int main()
{
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}
answered by (236 points)
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prog.c: In function 'main':
prog.c:7:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'int *' [-Wformat=]
     scanf("%s %s",a,b);
             ^
prog.c:7:16: warning: format '%s' expects argument of type 'char *', but argument 3 has type 'int *' [-Wformat=]
     scanf("%s %s",a,b);
                ^
prog.c:11:12: warning: multi-character character constant [-Wmultichar]
         x+='a[i]';
            ^~~~~~
prog.c:15:12: warning: multi-character character constant [-Wmultichar]
         y+='b[j]';
            ^~~~~~
prog.c:17:14: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'int *' [-Wformat=]
     printf("%s %s",a,b);
              ^
prog.c:17:17: warning: format '%s' expects argument of type 'char *', but argument 3 has type 'int *' [-Wformat=]
     printf("%s %s",a,b);
                 ^
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Hidden content!
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prog.c:1:1: error: expected identifier or '(' before '.' token
 .
 ^
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/usr/lib/gcc/x86_64-linux-gnu/6/../../../x86_64-linux-gnu/Scrt1.o: In function `_start':
(.text+0x20): undefined reference to `main'
collect2: error: ld returned 1 exit status
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prog.c: In function 'main':
prog.c:14:10: error: assignment to expression with array type
     tempb=tolower(b[i]);
          ^
commented by (4.3k points)
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commented by (4.3k points)
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Hidden content!
#include *  *  *  **   
#include * ** ** * **   ***

int **    * char str[], const char key[]);

int main()
{
*   * **    ***  * ** str[1000], key[1000];
   * *    *      * * * *
**   *******  *****  *  **** 
  *** ***  *  *  ** * *  *   *  * ***     *   *  %d  *  **  count(str, key));
 * * ** * *   *  * *    0;
}

int count(const char str[], const char key[])
{
*    *   * * *       **  * *     *  * **  ** * *  ** 
*   *  * *   * * * **** *  **  * *  * key);
** *   * ** ** *** **    *   ** ***  ****
**** ***   * * ****** *  * * *
  *  *  * *  * ** **  * *  *    ***** **  *  ****       *  *** ** *
    **  **** *   *     ** ********* * *******   * ***** * 
****  ****  ** ***  *  *****  **** **  * **   **  *** ** * key);
 * ** * *  *** ***** *    *
     * *   **  *   *   *   *   ** count;
}
answered by (190 points)
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prog.c: In function 'main':
prog.c:9:4: warning: 'gets' is deprecated [-Wdeprecated-declarations]
    gets(str);
    ^~~~
In file included from prog.c:1:0:
/usr/include/stdio.h:640:14: note: declared here
 extern char *gets (char *__s) __wur __attribute_deprecated__;
              ^~~~
prog.c:10:4: warning: 'gets' is deprecated [-Wdeprecated-declarations]
    gets(key);
    ^~~~
In file included from prog.c:1:0:
/usr/include/stdio.h:640:14: note: declared here
 extern char *gets (char *__s) __wur __attribute_deprecated__;
              ^~~~
/tmp/cc24SSNn.o: In function `main':
prog.c:(.text+0x25): warning: the `gets' function is dangerous and should not be used.
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Hidden content!
#include <stdio.h>
#include <string.h>
int main(){
 ***  ****   ** **  *  * s1[1000];
*    **  *    ****** *     ** s2[1000];
*****   *** *** ** *   * **** s3[1000],s4[1000];
  *     *** *****     ****      * *  i;
  ****  **** *   *  * *    * s1,s2
* * ** *   * * *   **** *   *** *   *  * %s",s1,s2);
 * * *   *** *** *  **   * *       s1 to s3,s2 to s4
  ** ** *   *   **  * *     * * ***  *
*    ** **  *  *** ** * *     * ** 
 *  * ****  * * ***  *  *****  * s1 to ALL uppercase
*  ** **   **  * * * * *   **  **** * * **** * 
  * ****** **** *  * ** *    *** *** *  ** *  **    ***  ** **  *  * *** * ***  *  *      ***
*  * ****** *** *   ** *******  * ********   **  *  *    **  ** **   * **   *   *****  ** *  
    }
*       **   *  * ***   **  *  s2 to ALL lowercase
      *  * *********      *    **    * *** *   
*     ***** *  *  *     ** * ***  * **** * ** ** *  * ****  * *   *    ** * *** *** * ****  **    
   * ****    ***** * ** *    *  *** *     **   *   ****** ** *   ** **** *      ****   ***
**      ******   ***  
   **  **  *  * **  * *  ** **  s1,s2(be converted to all uppercase)
*  ** ** **   *    *****  **  *** * ****** 
  **  * ***  ** * *   * ***  ** ***** ** ****  **  * * ******* ***  * == %s",s3,s4);
 *  *    *   *** **  * ***   
**  *   *   * *    *******   *    if(strcmp(s1,s2)<0){
 *  *    * ** ****   **    ** * **   *   *** * *  *** ** ****** > %s",s3,s4);
**   ** * *   *  * **  ** ** 
 *** *   *** **** *** *** **   ** if(strcmp(s1,s2)>0){
 **  ** *** *** **        *  *    ***** *  **** **  **     * ****  < %s",s3,s4);
*  **** ** *  **     *** **  
* *   **  ** ****  * ** * * 0;
}
answered by (212 points)
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Hidden content!
#include <stdio.h>
#include <string.h>
int main(){
 **     *   *     * ** **  ** * s1[1000];
 * *     *  * **  ** ** ****   s2[1000];
** * *  *    **    ** ****   s3[1000],s4[1000];
 *  ** * ** ****    *  ** *** i;
  **** ****  *    ******* ** ** s1,s2
  ******  * *   * *  ** **  *  * *      %s",s1,s2);
  ** *  ****** ******    **    s1 to s3,s2 to s4
* * * **** * * *** * * *    ***** ** 
   **** * ***** * **  * * * ***   * ** 
 ***    * *  ***  ****     *    * ** s1 to ALL uppercase
***     * *  ***    *  **  ** ** **  **  ** ** * ****
 ****  *    *   * * * * **  * * ****  ** ** ** *  ** * * ** *** *  *  *  ***** **     * ***
 ****  * ** ****** * *   * *** *     * *    **  ** *  *  *   **  * ******   *  *        
    }
*** **  ****  *    * *   *  *  s2 to ALL lowercase
 *  ***  *     ** ***      ***   * **      ** **   * * *
** ***** *    * * *  *  ** *****  *      **    **   **  * * * ** **  *        * *  ** 
       **  *    *  ** **   **   * ***  *     ** *    *  **  * ** **   ** *  ***  **** * ***  *  *   *  
*** ****** ***  **   *** * 
****** *   ** **  ** ***     *** ** * s1,s2(be converted to all uppercase)
 *** * * *  *   * *** *  * ******** *    * **
**********  *  *   **  * *****    *     * **** **    ****    ***** *  == %s",s3,s4);
***    * ** * *      ***** ** 
* * *** **  *  *   *  **   ** * * if(strcmp(s1,s2)<0){
***   **  **   ***      *** *  * *   **  ****** ** *  *   * **  ** * *  > %s",s3,s4);
 *  * *** **    * *  * *   
 * **** * **   **  * ***  *  if(strcmp(s1,s2)>0){
  *** * **  ***    **  ** * * * *** *  ****  *  *****   * ** **  **** *  < %s",s3,s4);
**  * ****  * *    *** * **  *
   **** **  **  **  **   ** * *  * 0;
}
answered by (194 points)
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Case 0: Correct output
Case 1: Correct output
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commented by (4.3k points)
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