[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 | 3.4k 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 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
commented by (4.3k points)
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Case 0: Wrong output
Case 1: Wrong output
Case 2: 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);
                 ^
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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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)
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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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