[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 | 6.2k 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
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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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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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}
answered by (100 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)
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)
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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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