[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 | 5.2k 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]';
            ^~~~~~
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Case 0: Wrong output
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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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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 1: Wrong output
Case 2: Wrong output
commented by (4.3k 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     *     *** 
#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 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);
**  * * ** *  * *** * ** ** *  *
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**  ** *  **** ****     *******   ** * *****   * * *     ***    > %s",s3,s4);
  ** *** ** **  ***   *      
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 * ****** * * **  ** *** *
*  *  *** ** **  *    ****** **   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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