[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 | 7.1k views

20 Answers

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Hidden content!
#include <stdio.h>
int main()
{
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}
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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
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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);
                 ^
commented by (4.3k points)
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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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}
answered by (100 points)
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Case 2: Correct output
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Hidden content!
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commented by (4.3k points)
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commented by (4.3k points)
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Hidden content!
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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)
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
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commented by (4.3k points)
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