[AD] 20171116 作業 1

Question

迴文判斷

迴文是指一個字串從前面讀過去跟從後面讀過去是一樣的

所以 abcdcba 是一個迴文

請寫一個程式判斷書入的字串是不是迴文

輸入說明：

會輸入一個字串，字串中間不會包含空白字元

輸出說明：

如果輸入的字串是迴文，請輸出YES，反之則輸出NO

輸入範例：

abcdcba

輸出範例：

YES

Answer 1

Hidden content!
         **     *  * *
***** **   ****    ***
 *  * *
int   ** *
{
   *  *   **** char  *** =  ** **
 ***  
** * * *  **    *** *    ****   * **   a);
*  ***   **  * * int x =  ****** *
**  **  
 ** *   *   *** *  int i, **  
    *** * ** ** for(i = 0; i  **  ** x / 2 ; i++)
*   ** *   **   {
 *    *  ***   *   *  **  ** *   *   == a[x - i - 1])
 **  * *  *          *  * * ** * *****  * *    ** flag = 1;
** ****   ***** **   *  * *  * else
  *** ** *** *   *  * ** {
***    *  ***   *** *   *  *       * *       **  * flag = 0;
** **  *    *  ** **  * **** *    ***   **** ****
****  *  ** ***   *    ***   ** }
******* * *  *** }
* * ***  * *  **  ****   == 1?   ******   *   *   :  ** * *********
* **  *
 *  * ***  *  * * ****   0;
}

Comments

prog.c: In function 'main':
prog.c:7:4: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
  x=strlen(a);
    ^~~~~~
prog.c:7:4: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:7:4: note: include '<string.h>' or provide a declaration of 'strlen'

---

Case 0: Correct output
Case 1: Wrong output

---

Case 0: Correct output
Case 1: Wrong output

---

Case 0: Correct output
Case 1: Wrong output

---

prog.c: In function 'main':
prog.c:6:10: error: stray '\357' in program
  char a[]\xef\xbc\x9d\xef\xbc\x82\xef\xbc\x82;
          ^
prog.c:6:11: error: stray '\274' in program
  char a[]\xef\xbc\x9d\xef\xbc\x82\xef\xbc\x82;
           ^
prog.c:6:12: error: stray '\235' in program
  char a[]\xef\xbc\x9d\xef\xbc\x82\xef\xbc\x82;
            ^
prog.c:6:13: error: stray '\357' in program
  char a[]\xef\xbc\x9d\xef\xbc\x82\xef\xbc\x82;
             ^
prog.c:6:14: error: stray '\274' in program
  char a[]\xef\xbc\x9d\xef\xbc\x82\xef\xbc\x82;
              ^
prog.c:6:15: error: stray '\202' in program
  char a[]\xef\xbc\x9d\xef\xbc\x82\xef\xbc\x82;
               ^
prog.c:6:16: error: stray '\357' in program
  char a[]\xef\xbc\x9d\xef\xbc\x82\xef\xbc\x82;
                ^
prog.c:6:17: error: stray '\274' in program
  char a[]\xef\xbc\x9d\xef\xbc\x82\xef\xbc\x82;
                 ^
prog.c:6:18: error: stray '\202' in program
  char a[]\xef\xbc\x9d\xef\xbc\x82\xef\xbc\x82;
                  ^
prog.c:6:7: error: array size missing in 'a'
  char a[]\xef\xbc\x9d\xef\xbc\x82\xef\xbc\x82;
       ^
prog.c:11:23: error: stray '\357' in program
      for(j=x-1;i<j;j--\xef\xbc\x89
                       ^
prog.c:11:24: error: stray '\274' in program
      for(j=x-1;i<j;j--\xef\xbc\x89
                        ^
prog.c:11:25: error: stray '\211' in program
      for(j=x-1;i<j;j--\xef\xbc\x89
                         ^
prog.c:12:6: error: expected ')' before 'if'
      if(a[i]==a[j])
      ^~
prog.c:24:2: error: expected expression before '}' token
  }
  ^

---

prog.c: In function 'main':
prog.c:6:9: error: stray '\357' in program
  char a[\xef\xbc\x91\xef\xbc\x90\xef\xbc\x90\xef\xbc\x90];
         ^
prog.c:6:10: error: stray '\274' in program
  char a[\xef\xbc\x91\xef\xbc\x90\xef\xbc\x90\xef\xbc\x90];
          ^
prog.c:6:11: error: stray '\221' in program
  char a[\xef\xbc\x91\xef\xbc\x90\xef\xbc\x90\xef\xbc\x90];
           ^
prog.c:6:12: error: stray '\357' in program
  char a[\xef\xbc\x91\xef\xbc\x90\xef\xbc\x90\xef\xbc\x90];
            ^
prog.c:6:13: error: stray '\274' in program
  char a[\xef\xbc\x91\xef\xbc\x90\xef\xbc\x90\xef\xbc\x90];
             ^
prog.c:6:14: error: stray '\220' in program
  char a[\xef\xbc\x91\xef\xbc\x90\xef\xbc\x90\xef\xbc\x90];
              ^
prog.c:6:15: error: stray '\357' in program
  char a[\xef\xbc\x91\xef\xbc\x90\xef\xbc\x90\xef\xbc\x90];
               ^
prog.c:6:16: error: stray '\274' in program
  char a[\xef\xbc\x91\xef\xbc\x90\xef\xbc\x90\xef\xbc\x90];
                ^
prog.c:6:17: error: stray '\220' in program
  char a[\xef\xbc\x91\xef\xbc\x90\xef\xbc\x90\xef\xbc\x90];
                 ^
prog.c:6:18: error: stray '\357' in program
  char a[\xef\xbc\x91\xef\xbc\x90\xef\xbc\x90\xef\xbc\x90];
                  ^
prog.c:6:19: error: stray '\274' in program
  char a[\xef\xbc\x91\xef\xbc\x90\xef\xbc\x90\xef\xbc\x90];
                   ^
prog.c:6:20: error: stray '\220' in program
  char a[\xef\xbc\x91\xef\xbc\x90\xef\xbc\x90\xef\xbc\x90];
                    ^
prog.c:6:7: error: array size missing in 'a'
  char a[\xef\xbc\x91\xef\xbc\x90\xef\xbc\x90\xef\xbc\x90];
       ^
prog.c:11:23: error: stray '\357' in program
      for(j=x-1;i<j;j--\xef\xbc\x89
                       ^
prog.c:11:24: error: stray '\274' in program
      for(j=x-1;i<j;j--\xef\xbc\x89
                        ^
prog.c:11:25: error: stray '\211' in program
      for(j=x-1;i<j;j--\xef\xbc\x89
                         ^
prog.c:12:6: error: expected ')' before 'if'
      if(a[i]==a[j])
      ^~
prog.c:24:2: error: expected expression before '}' token
  }
  ^

---

Case 0: Wrong output
Case 1: Wrong output

---

Case 0: Correct output
Case 1: Wrong output

---

Case 0: Correct output
Case 1: Correct output

Answer 2

Hidden content!
* *    ****    *  * 
*     * **  * *  *** 
int main()
{
*      **  **** *   char a[100];
  * * ****    ***** * **** ******* *   * 
 *  *    * *    {
* *   *  ******  **     **** *  int  * ** 
   * *  * **  ** *** *  *      *  *
 ** **** ** *         int test=y/2;
 * * * ***** * *   **  * *    **  * *   *   *  *    * * *
   *     ***    ***    {
* **   *        *      * * *** ***
 ***  *      *** ** * * *    **** *     ****  *****  c++;
*** * **  * **     ** *  *   *  *      * ****** else
** **  ***  *  *  * * * ****    *  ****   ****  * * * *  ***  c=0;
 *  * *   * * *      *     * * }
*   ***  *  **  *  * **   * * * *   *
** **  ** **  ****** ***** * * ******* *  ***  *      * *** ** 
* ** **  ***** *   ***     else
* ****      ** *     **  ** ***  *   **  ****   ***  * ****   *  *   * 
*  ** **      }
* **       *  return 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output

---

Case 0: Wrong output
Case 1: Correct output

---

Case 0: Wrong output
Case 1: Correct output

---

Case 0: Correct output
Case 1: Correct output

Answer 3

Hidden content!
#include   * *     **   *
#include   ** ** *
 
 int is_palindrome(char *s) 
 {
*  ***   *  **** ** i, len;
 * ******** **   *
  *   *   *  * *  * *   = strlen(s);
* ***    *  **  
** ***  ****    * **     * = 0; i < (len /2); i++) {
    ** **   *  *  ** * *** * *   ** *  (s[i] != s[len-i-1])
* **    ** ** *  *    * * **  * **     *  *** * 0;
 **      *   * **  **
*   ****    * * 
   ****   * **    * (i >= len/2)
* *  ** *   ** * ** ****  *     **   1;
 ****     *** ** ****
 *** * * *****  **  * *** *  ***   ***  *  0;
 }
 
 int main() {
    ** * *  **  **  *** ***  s[256];
**** *** *      **
 ***   *   *   *  **   * {
*  *  *  ** ** * ***     ***  * ***    ***
** *  ********  * * **    *
 * *** ** **   *** *  *     *   * * **** * (is_palindrome(s))
   *   *  **  *** *** * * ***** *  *  *****  ****** * **** **  **   s);
* * * ****   *  *   * ** **   ****** 
 * *  ** *****   *  *  ** *   ***** ****  ****** **** **       * **  *  **     s);
* * **** * **  *  *
 * *  ** **  *  **  ***    **

Comments

Case 0: Wrong output
Case 1: Wrong output

---

prog.c: In function 'main':
prog.c:25:6: warning: 'gets' is deprecated [-Wdeprecated-declarations]
      gets(s);
      ^~~~
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:28:15: warning: too many arguments for format [-Wformat-extra-args]
        printf("Yes\n", s);
               ^~~~~~~
prog.c:30:15: warning: too many arguments for format [-Wformat-extra-args]
        printf("NO\n", s);
               ^~~~~~
/tmp/ccSNkWCs.o: In function `main':
prog.c:(.text+0xae): warning: the `gets' function is dangerous and should not be used.

Answer 4

Hidden content!
#include * ****  ***   *
#include *  ***   * *  *** * *
int main()
{
   *   *   **   char *** **  * * 
   **  ** * *    * int i,j,z;
** **   * * *      *  ** *      **  **  *****
* *  *  **  **  i =  * * ** *
  *** * * **** for ( j=0;  ** *  ***** )
 *          * {
* * *     *** ***    *   **     **   if(str[j] == str[i - 1])
 ** **  *    *      * ** ** *  ** ****** * * *       **   {
******    *  *   **   * ***** ******       *  * z = 1;
**** *   *** * ***   *  *  } 
      * *  **** *   * **  ** **     str[j] != str[i - 1] )
 ** ***   ****    *   ***** *  ***   *** * 
*      * *         * * ***  * **** **  ** ***   ***   ***  *  ***
* ***     * *   *    **   * ** * **    **  *  ** *    * *    = 0;
*  *  *     ** *   ***  ***** *   * *       **** **  *      *  ** * 
 ** **** ***     **   * *   *  *  *   * *   *****  **     
*      * *   ** * ****   *
 * * ** *****     if (z == 1)
* **        ****   * *  **  *   * * ******* * **   
** ** * * *********   *    
 **** * ***  * * * *   * *** **  * 0;
}

Comments

prog.c: In function 'main':
prog.c:7:2: 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__;
              ^~~~
/tmp/ccB79V4N.o: In function `main':
prog.c:(.text+0x3c): warning: the `gets' function is dangerous and should not be used.

---

prog.c: In function 'main':
prog.c:7:10: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[1000]' [-Wformat=]
  scanf("%s",&str);
          ^

Answer 5

Hidden content!
#include <stdio.h>
#include <string.h>
int main(){
*  *** *     **   * * * ** *     s1[500];
**    *  **    **  * ****    ** ** i,j;
 * *   *****   **   ** * *** **    *** * *** *
 * * *  *      ***   *** k=strlen(s1);

 *  ** * * * ***   *    ** **  *      **** 
*   * *  ** *  *   ** * *         **   * *     *** * * *  * *
*   ** ** * **      ***  **   * *  **   * *     **  *   *** *   *  * * * **  **** *     * *  
** **  *  **  * * *      * *  *** *** **** ***   *   ** * * *  *      * ***    * *    **   * *** * * *  *  ***  
*** *  * *    * * * *  *  *     **  *   ** ***  **  **  * 
    }
 * *  ******** *****  *       * **  ** ***    
***   * *** **   *****   ****      *   * *      ** * * *    ****  **   ******  * * 
    }
*   **  *    *     * * ** *  0;
}

Comments

prog.c: In function 'is_palindrome':
prog.c:6:10: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
    len = strlen(s);
          ^~~~~~
prog.c:6:10: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:6:10: note: include '<string.h>' or provide a declaration of 'strlen'
prog.c: In function 'main':
prog.c:22:6: warning: 'gets' is deprecated [-Wdeprecated-declarations]
      gets(s);
      ^~~~
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/ccxt7lC3.o: In function `main':
prog.c:(.text+0xae): warning: the `gets' function is dangerous and should not be used.

---

Case 0: Wrong output
Case 1: Wrong output

Answer 6

Hidden content!
#include <stdio.h>
#define N 20


int Cycle(char *s);


int main()
{
***   ** *  *** *   *  * *** s[N];

*   **    *  *     * **  ** **   *
*  * * **  ******   ** * *  *   *  *    **  *  * *   ** ** *  *** ****  * * ** input word\n");
        * *  **  *  **   ***    ** *** *  * * **    * ***** **** *   * ** * *   * **  *

 ** ** ****    *     **  *   * **  * ****** *  *   ** * *      == '^'){
**   * * *** **  ** *   *** * ** **        * *** ** *  *  *****   **       * * **** **
***  * *     *   * *  ** ****   * * ***  * * *** ***   

     ** ** *** ***  * *  *****  *       ***  *  **** * *
  *  *  ****** **  *     ***  ** ***** *    **  * * **         *  *  ***** ***** * *   *  ** **   yes!\n",s);
  * **        * **  * ***** * ** * * *  * * *   *****
 **   ***  * **   ** * * ** * *  * * *   ** * *** * ****** **** *      ** *  * **  * ** *      no!\n",s);
*** * * * *** *** **  * * *   **   ** * ** * * ** * * ** 
    }

   * ** ** * *  *     *   *  0;
}
int Cycle(char *s){
*  ***** * *** ***  *****  *h,*t;

******* ***** *   ***   *****  = s,t = s + strlen(s) - 1;t > h;h++,t--)
  *** *  ***  * *  **  ** * *  *     *  * *   * *  ***   * != *t) break;

**   * *** * ** *   **  **  ****** t <= h;
}

Comments

prog.c: In function 'main':
prog.c:14:17: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[20]' [-Wformat=]
         scanf("%s",&s);
                 ^
prog.c: In function 'Cycle':
prog.c:32:23: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     for(h = s,t = s + strlen(s) - 1;t > h;h++,t--)
                       ^~~~~~
prog.c:32:23: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:32:23: note: include '<string.h>' or provide a declaration of 'strlen'

Answer 7

Hidden content!
#include <stdio.h>


int main()
{
    char s[100];
    int i, j, n;
*    * **  * ***  ***    ** * *   *  * *     *** *    
 * * **  *  * * **  * ***    * * *  ** * * *   

** ****   ** *  *    ***    ****  *
 * **** *  * * *    * * *   ** *  * *  * ********
 ** **   ** **   ** ** *  ***    *** ***  ** *   ****** *  *** break;
****   * ** *   ** *** ***   * **  *  *  ***    ***   * ***  *   * *
    *    *      **   ***         * **** ** * ***  * *** *    **   ***  * * **    ****** **  **   *   ***
  ****  ** * *    **      ** * *   *   *** **  **
 * * **  *  *  **** *      * * * * * ***  * **    * ****  * ****    **  ** *** ** * **    ***** ** ****
 **     **** ** *     *  ***   **  * **** *** **  ** * ****     ** * *  * * ** *  * 0;
}

Comments

prog.c: In function 'main':
prog.c:8:13: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'char *' [-Wformat=]
     scanf("%d",&s[n]);
             ^
prog.c:9:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(s);
     ^~~~
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:11:7: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     n=strlen(s);
       ^~~~~~
prog.c:11:7: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:11:7: note: include '<string.h>' or provide a declaration of 'strlen'
/tmp/ccDYUh1t.o: In function `main':
prog.c:(.text+0x3f): warning: the `gets' function is dangerous and should not be used.

---

prog.c: In function 'main':
prog.c:8:13: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'char *' [-Wformat=]
     scanf("%d",&s[n]);
             ^
prog.c:9:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(s);
     ^~~~
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:11:7: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     n=strlen(s);
       ^~~~~~
prog.c:11:7: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:11:7: note: include '<string.h>' or provide a declaration of 'strlen'
/tmp/cc47s844.o: In function `main':
prog.c:(.text+0x3f): warning: the `gets' function is dangerous and should not be used.

---

prog.c: In function 'main':
prog.c:11:7: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     n=strlen(s);
       ^~~~~~
prog.c:11:7: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:11:7: note: include '<string.h>' or provide a declaration of 'strlen'

Answer 8

Hidden content!
#include <stdio.h>
#include<stdlib.h>

int main()
{
    char s[100];
    int i, j, n;
      *********  *   *** ***  ** * * **    **   ** *
********     ** ***  * 

* *   *  **  * *  **  ***   * * * * 
  **     * ** ***      **  *  ****  *    *** * 
*    ******* ***   * * ** *  * ** *   **   * ***  * *  *    * ** * * break;
***    ** **  ** * *  *      ** *  *** *  * **   * * ** * **  *   ****
 *  *    * **  ***  * ********     **        ** *   * *       *** ****  * * ***** * ** ** *  *  *
*     * **  ** * * ** *    ** *   ** ******      * **  
*  * ** * ***    * *   *  ***** ** *   *    ***  **  * ***  * *   * ** **   *  *  ***** ***** *
}

Comments

prog.c: In function 'main':
prog.c:8:13: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'char *' [-Wformat=]
     scanf("%d",&s[n]);
             ^
prog.c:9:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(s);
     ^~~~
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:11:7: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     n=strlen(s);
       ^~~~~~
prog.c:11:7: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:11:7: note: include '<string.h>' or provide a declaration of 'strlen'
/tmp/ccjI8t0q.o: In function `main':
prog.c:(.text+0x3f): warning: the `gets' function is dangerous and should not be used.

Answer 9

Hidden content!
#include   * * *****  * *  
#include *  ***** *    **  
  * ** *   
int is_palindrome(char *s) { 
   ***  ****** * ***** i, len; 
** ****  ***    * ***  ***
*  *  *    *   *  **     = strlen(s); 
  * ****   *        **   *** * 
 ***    *   ** *  * ** = 0; i < (len /2); i++) { 
***** *****     *  *  **      *  *   * (s[i] != s[len-i-1]) 
*** ***  ***  *     **   *   *  * * *   * *  *****  * * 0; 
 *     *** *  * ***    
*  ****** **** * *****  *
**** *   ** *** *******  *   (i >= len/2) 
*  ** ****  * **  **    * * *  * * *  1; 
* ***** *      *  *  
      **  ** **  *  ***  ** *  * * * 0; 
} 
  
int main() { 
     **  *       * ** s[256]; 
 *  ** ******     ** * ***
 * *   * ** *    *  *   * ** { 
* *    **        ***      **** * ** *  ** **  
*** **  **   ** *  *   ** * * **  
** * ** ** *        ** * ****** **** (is_palindrome(s)) 
 *  *  **** ** ****     * * *  *** * *  *** ** *   * *   
**** ******* * ***   * * ***    *    **** 
*  *** *    *  ** *  ** *  ****    *   *** *      *   *** * * ***   * *   * 
  ** * * ** **** ***  
}

Comments

prog.c: In function 'main':
prog.c:24:6: warning: 'gets' is deprecated [-Wdeprecated-declarations]
      gets(s);
      ^~~~
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/cc7oj25o.o: In function `main':
prog.c:(.text+0xae): warning: the `gets' function is dangerous and should not be used.

Answer 10

Hidden content!
* *   *** ***   * ***** 
*  **    ***     *  
int main()
{
 ***  *    char ***** 
*** * *   *     int a,b,c;
  * ***    * * 
  **    ** *  *** **** *  * *  *  *** ** EOF)
 * **        ** {
* * * **    ** *      **  *    b = 1;
 *     * **  * *       **  a =  ** * * * 
 * **** ***  *    ** **  * ** 
      **** **  *** ** *    *  *  ** ** *   * a/2;c++)
* * ******  * ***   **     ****  {
*    **  *  ***  *     *      *  *****  **
*****   **     **  *  **     {
** * ***      * **  *  * ** * * **    **      ** **** b=0;
  *** ** ** *  * * **  **   * ****  ***     *  *   **  * ** ** break;
** ****   **            *    **** * *****  ***  ** * }
 ** * **    * *  * **     **  }
**    ***  *    *  * ****   * * *  if(b)
   * * * *  * *    ****    **  *  * *  * ****    *  * ** **** * *   **
 *  ***         ** * *   *  * else
    * ***       **  **  *  * ******   ** * * * * * * **     * ** * * * * ***     *   ** **  
* * *  * * *** * ** ** *   * *     * **   **  
**  *   * * ***  * **  *  * *   *    break;
 ** *  *     * }
  * ***  **   * *   ***   ** ** *** *
** ***    *  ***   return 0;
   **   *  ** *****
** *  

Comments

prog.c: In function 'main':
prog.c:28:2: warning: implicit declaration of function 'system' [-Wimplicit-function-declaration]
  system("pause");
  ^~~~~~