[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");
  ^~~~~~