[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");
  ^~~~~~