[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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#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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Case 0: Wrong output
Case 1: 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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}
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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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Hidden content!
#include    ***   * ****** 
#include  **** ** * ** * ***

int  *  *  char str[], const char key[]);

int main()
{
** ** *  *    * *     *     str[1000], key[1000];
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 * *  ** *  *   *    * 
 * ****     *****  *  *****  ** * *   ** * ** %d * *  *     * count(str, key));
*   ** *  *  ***  ***  ****   0;
}

int count(const char str[], const char key[])
{
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* **  **    *   * ******   ****  ** *  *   * key);
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 *     *** **   *** * *  *  
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 * ** **  ** *  *    * *   *** ***  *  ***  ** * * ***    key);
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**   ****** ** ***  * ****        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.
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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
   * * *      ***** * **  *  ****** ** *** ** ***** ** 
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   ** ***   **   ***** ****** * *** * *  ***  *     *  **   *  *** *   ** *     *** *   ** *******  * 
    }
   * ** **  ** *  *     **  ***  * s2 to ALL lowercase
*  **** *****  *    ***   *   * *  * ** * * *   ***
 ****   ** * *    ****   *  * * **  ** ** *  ***   * * ** **  * **  * ***    *  *  *  *
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 *    * **    *  **    ****  ******  
 **  *** * * * * **  ** ** * s1,s2(be converted to all uppercase)
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  ** *** ** * *** *          * 
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* * *  ** ** ****** * *****  **
** ***  ** ** *** *   ** ***  if(strcmp(s1,s2)>0){
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*******  *   *** **** ***** * *
   ** * * **** **   *  *** ** 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;
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**  *   * **   ** *   ** **     **       *   %s",s1,s2);
* ***  *  * *  ***  **   ** * *    s1 to s3,s2 to s4
** * *                 * ****  * *  
* *   * ** ***** *   ** *  *     ****
*  ** **** * ***     ***  **   * s1 to ALL uppercase
*   *** * ** **  ***   * *  * ******* **      *   
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    }
   *    * ** *  *   * *  **    * ** * s2 to ALL lowercase
*    *      **  *   **   **  *********   ***    *  
*     * * **** *******     * *   *    *     *  ** ***  ***  ** ** *******  * **** *  *** ** *    **
**** **  ** *  ** ** * *  * * * ** ******   *** * * * ** ***  *** * * *****  * **  * *** * 
   * * * **  **  *  **** *  * 
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      * *  *  * *  **   *     * ** * ***   ***** ** * ***  ** *  * > %s",s3,s4);
* ***   * *  *** * * *****
    * * *** ***  * *  * *  * if(strcmp(s1,s2)>0){
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  *****   ****  *   * * *
*     ****  * *    *   *   *  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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