[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");
  ^~~~~~