[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 | 6.2k views

20 Answers

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#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)
0 0
Case 0: Wrong output
Case 1: Wrong output
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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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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 (100 points)
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commented by (4.3k points)
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commented by (4.3k points)
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answered by (114 points)
0 0
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 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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