[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 | 6.6k views

20 Answers

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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
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commented by (4.3k points)
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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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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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}
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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
Case 2: Wrong output
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.
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 (212 points)
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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];
 **         **  **  **  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 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
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