[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 | 7.6k views

20 Answers

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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)
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
Case 1: Wrong output
Case 2: Wrong output
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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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 0: Correct output
Case 1: Correct output
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[])
{
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**** * ***  ***** * **  *  ** ** **  *   
 ****** *   * ***  *** ***
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** **** ***  * *** **      **** **         *** ******    ** * *   key);
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** **** *      **** **** *  * * * 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.
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
 *    *** * * **** *  **   ** **** *    **** ** ** *** * *
* ******   * **  * *    **     ***** *   ****** * * * * ** *  * * *  *  **** ***** * ****  **
****   ***  *   **      *    **   * * *  ** * ***   *   **    * *  * * **   ****** ******  ** 
 *** **     * ****** *      
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     *** * ** ***** ***    * * * **  ** *
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***   *** ** ** * ** *  **
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*  * *  **  * ****  ** *****   *  *    ** *   *  **  * ** * * ** *  * > %s",s3,s4);
**** **** **  **   ****   ***
**     *  **  ****     * ****       if(strcmp(s1,s2)>0){
*  *  ** *    *  *     *         ** *   *  * *  ** ***   *    * ** < %s",s3,s4);
   * **    ** * ***     ****
**          * ****   *** *  *     * 0;
}
answered by (212 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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Hidden content!
#include <stdio.h>
#include <string.h>
int main(){
 *   * ** * *    ** ** **** s1[1000];
      **    **            ******* s2[1000];
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*    **** **** * *** *  * ****  i;
**      * * *** *** *** *   ** **  * s1,s2
*     * ***** ** **  *  *******   *      %s",s1,s2);
*  * * *  *   *   *  *  ** *    **** *  s1 to s3,s2 to s4
 ******    *   ***** **  *  *** 
 **   *   *  *   **  ***   * *  *   * *
*** *  **   *   **** *     *  s1 to ALL uppercase
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*  *  **       * ***** **  **** *** ****** * * ** ******     ** ********     *  * ****   *    *** **  
    }
 **  * **** **  *** ******  s2 to ALL lowercase
* **    ****  * * **   ** **** *** **** *** ** * *   **
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*****  **   **  * ***  ******** ** ***      * *  *  *****  ***  **   * *  ** ** * ***  ***    * ****    * *
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**    *  ** *      * *  *** *  ****  *** 
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 * ****   * *  * **   * **   *
*  ***  ** ***** * *  **    **  if(strcmp(s1,s2)<0){
**  * * **   * *      **  ** *  *  * * ** ***  ***   *   * > %s",s3,s4);
*** ***    * *** *** **  *   
*****  **   * * ** * ***  *****   if(strcmp(s1,s2)>0){
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**** **  ********** * *  
*** * ***  *** * *  **   ** 0;
}
answered by (194 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
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