[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 | 7.1k 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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Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
commented by (4.3k points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
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
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commented by (4.3k points)
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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];
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}

int count(const char str[], const char key[])
{
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   ** **** *   ***  *** *     
****   ******   ***  ***
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}
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.
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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
 * **   **** ***  * * ** **   **
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* *  *   ***  * **  *    * *****      s1 to ALL uppercase
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    }
 * *  * ******* * *     *** ****     s2 to ALL lowercase
** * *****   ****   ** * **  ** ***** * *  *  *    
  **** *   ***  ******   * ** * * * ** * ** *  * *  * *    *****    * ***  *** *** ******
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* * ** * * *     *** * *   *** *** *   ***  *
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*   * *  * **** *********
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**  *  * * * *  ** *** 
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*** * **     *   **    *   *  ***    *   *  **  ** ** *   **** < %s",s3,s4);
  *    ****  **       ******
* **** **     * * **    **** * *   ** * 0;
}
answered by (212 points)
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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];
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 * **    * *  **   **             ** *  *  
**** ***   *  * **  ** *  * * * ** *
*   **  ** * * ***       * *   s1 to ALL uppercase
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* * * * **  ***  * *  *** *   *** ***    *  *    * * **** *  *   * **   *   *    *    ** 
    }
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  * * **   *   * ***    **   *  ** **   *   ** **  * * 
  ** *  *  * *  ***  * **     *   ***  **   * *  ***  *    * *  ** *   * * **  **       * *
* * * * *  ******* * * ****  ** * ***    *  *   ** *  ** ******      ****  * * * *    *
*  *  **    ** ******  **   *   
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*  *  *****  **  ****  ** * * 
 ****** * **  **    **  *** ** 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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