[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 | 8.2k views

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Hidden content!
#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
Case 2: Wrong output
commented by (4.3k points)
0 0
Case 0: Wrong output
Case 1: 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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answered by (215 points)
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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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}
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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 0: Correct output
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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)
0 0
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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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 2: Correct output
commented by (4.3k points)
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