[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 | 3.8k 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)
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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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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);
                 ^
commented by (4.3k points)
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Hidden content!
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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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Hidden content!
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}
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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]);
          ^
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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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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