[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");
  ^~~~~~