[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;
 * * *  * * *   *****
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* **** ***    ***  (i >= len/2)
 * *  * * *    * *  * ** * *** *  *      1;
 *** **** * *   * **
 *****     *  * ** *   *  *  *  ** ** 0;
 }
 
 int main() {
* * ** ** **   * *      * s[256];
********* *     *** *
  ***     *  **** ****    ** ** {
 ** *     ***   **       * *  * **  ***  
**  ****  **     *  *******    *
*       ***  ** *       **     ****  **  ** (is_palindrome(s))
  *    * ***   *   ** *  **  *** ** * **  * **   ** *    * *   s);
*** ** ****      * * *  ***   *     ** *
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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");
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 **   ** * *  **    ** *  * **   *  *  *** *   **   * **    **  * * *****  **  **   * ** *
 **   *****  *  **** *** **  ***  **** **   ***  ***     *

  ***   *     *    *  *  * **   *   ** **    **  ****** *   **  ***
*   *  ***  * *  *** *     *** *    *  ******** * ** * ****   *  *  *  **  ** * **     * *     * * ** * 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");
  ^~~~~~