[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 | 4.9k 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)
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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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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 (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)
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 0: Correct output
Case 1: Correct output
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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