[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 | 5.1k 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
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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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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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}
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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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commented by (4.3k points)
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Case 2: Correct output
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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)
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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
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Case 2: Correct output
commented by (4.3k points)
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