[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 | 4.1k 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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Case 0: 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);
                 ^
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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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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 (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)
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 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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