[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 | 3.5k 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)
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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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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answered by (100 points)
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commented by (4.3k points)
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commented by (4.3k 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]);
          ^
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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.
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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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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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