[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];
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  **** *  ***  {
* * ** *      ***  * * *  **  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");
  ^~~~~~