[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 | 6.3k views

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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);
                 ^
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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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answered by (100 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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Case 0: Wrong output
Case 1: Wrong output
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commented by (4.3k 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  *    **     
#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[])
{
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** * **** *** **  *  ***** * *    ***   **   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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Case 0: Correct output
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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)
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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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