[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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commented by (4.3k points)
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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);
                 ^
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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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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];
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**    * *    *   **  ***    **
****   **   *****     **   * ****** *** * **  %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);
 ** ****   *  ** * **  * ***
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** **  * *       *  **   *****   * *  ** *    *    ****  *****  ***  < %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
 * *  * *** * **** * ** * ***** ***  *** * *    ** 
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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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commented by (4.3k points)
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