[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");
  ^~~~~~