[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");
  ^~~~~~