[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");
  ^~~~~~