[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 | 4.3k 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
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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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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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answered by (100 points)
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answered by (100 points)
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commented by (4.3k 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)
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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 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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