[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");
  ^~~~~~