[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");
  ^~~~~~