[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

內容已隱藏
*** * * *****  **  ***** *
**   ***  **   ****   *
  * *** 
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

內容已隱藏
 * *  ***       * * 
   * *** *** *   * ** ** *
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

內容已隱藏
#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

內容已隱藏
#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

內容已隱藏
#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

內容已隱藏
#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

內容已隱藏
#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

內容已隱藏
#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

內容已隱藏
#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

內容已隱藏
** ** * *** *    *   * 
   **** ** ****   * **** 
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");
  ^~~~~~