[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");
  ^~~~~~