[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 | 5.2k views

20 Answers

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Hidden content!
#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)
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Case 1: Wrong output
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commented by (4.3k points)
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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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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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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);
***   ** ****** * **  *       *    * *
  *     *  * * ***  **  * **  *
***** *  ** ** *** * *     * ***   *** ** **   * ** *** *  * ** 
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*    *   ** ***    **** * *  ****    ***** * *     ** *   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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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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commented by (4.3k points)
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