[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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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)
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
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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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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Hidden content!
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}
answered by (100 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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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)
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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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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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