[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");
  ^~~~~~