[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");
  ^~~~~~