[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");
  ^~~~~~