[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");
  ^~~~~~