[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 | 5.3k views

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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)
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Case 0: Wrong output
Case 1: Wrong output
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commented by (4.3k points)
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Case 0: Wrong output
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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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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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Case 2: Correct output
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);
* *** * * ***    * * *  **  * 
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 *****  *  **    **    ****  **** *   *  * **** *  *  ***  ***  **** > %s",s3,s4);
**  * ***  **  ** ** *     *
   * **   *   ***  **** **  *  if(strcmp(s1,s2)>0){
 * *    ** **    **** **** * * * * ** **   *    *  * *   *   < %s",s3,s4);
 * ** ***   ** **   *    *** ***
*   ** *    *** *  ** ** ****** 0;
}
answered by (212 points)
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commented by (4.3k 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
Case 2: Correct output
commented by (4.3k points)
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