[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");
  ^~~~~~