[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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#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)
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Case 0: 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()
{
***   ****** * * ** ** *    a[1000]={'\0'},b[1000]={'\0'};
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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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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)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
commented by (4.3k points)
0 0
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 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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