[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");
  ^~~~~~