[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 | 5.3k views

20 Answers

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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
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commented by (4.3k points)
0 0
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);
                 ^
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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answered by (100 points)
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Hidden content!
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answered by (100 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 2: Wrong output
commented by (4.3k 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  **    *    *** 
#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)
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 <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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