[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 | 3.5k views

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#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)
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Case 1: Wrong output
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commented by (4.3k points)
0 0
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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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answered by (100 points)
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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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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.
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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)
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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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