[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 | 6.1k 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);
                 ^
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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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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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answered by (100 points)
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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 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)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
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