[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 | 5k 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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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)
0 like 0 dislike 
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);
                 ^
commented by (4.3k points)
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Hidden content!
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int main()
{
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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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Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
commented by (4.3k points)
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Case 0: Correct output
Case 1: Correct output
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.
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 0: Correct output
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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)
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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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