[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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Hidden content!
#include <stdio.h>
int main()
{
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}
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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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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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Hidden content!
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answered by (100 points)
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commented by (4.3k points)
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answered by (114 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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Case 1: Wrong output
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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
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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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Case 2: Correct output
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)
0 0
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Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
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