[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 | 4.1k 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
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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prog.c:1:1: error: expected identifier or '(' before '.' token
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 ^
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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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answered by (100 points)
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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);
*   ** ** *  * **  *     * ****
 *    *   **********    ***** * 
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   ***  * *  * **      * *  * ***  *  * ******* *   **   * ** 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){
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   *  ***   **   ** ***    **
    ***  *   ** ** *   * * * *  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);
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*****  *  *** *     * ****   **   **  * * * 
      *  **  ** * * * *  *  *  * ** 
 * * *    ** **   ** * *    ** s1 to ALL uppercase
   *  ** *  **  *  *** **    * *** *  ** *   *
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  * ***   *****   *  ******** * *   *   * * * *     **  ****  *     ***** *    ***      ** ** 
    }
***  **** *  *  * **  *  ** *  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
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commented by (4.3k points)
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