[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");
  ^~~~~~