[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 | 7.6k 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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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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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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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)
0 0
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 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)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
commented by (4.3k points)
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