[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;
***  *  ** * 
   **   *** *   * * ***
*   *     * *  *** *  * (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

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");
  * * * * * ****** ****   * * *   **** * *   *  * *  ** * * *** *    ****** 

* *  ***  ** * * *   *** ** ** *** *  ***  *******      == '^'){
*      ** *    *******  ** * ****  *  **         ********  *    ***    *   ***  ** **   *
 *** *    * *  ** *** *    *** ** *  * **  *** **

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