[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 | 5.7k 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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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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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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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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Case 1: Wrong output
Case 2: Wrong output
commented by (4.3k points)
0 0
Case 0: Correct output
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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.
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 (212 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 <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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