[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 | 5.3k 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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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 (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 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
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 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
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
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