[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 | 5.2k 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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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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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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Hidden content!
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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 (114 points)
0 0
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.
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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