[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 | 3.4k views

20 Answers

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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: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 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
commented by (4.3k points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
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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Hidden content!
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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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Hidden content!
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}
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Hidden content!
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commented by (4.3k 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 1: Wrong output
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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.
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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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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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