[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;
 *  ****    * **   * * ***     }
  ** * *  ** *   * * * **    *** *  ****
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  **** * * * * ** ** *  *** ** 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");
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*    ***********  * *  **   ** * *** ** **    ** *   **  ***    == '^'){
** **   ** **  * * *****   *  ** **    ***  ***  **   * * *  *  *****    *  **
*  *  ***    * *  *  *  **    ** *   ** ***  *  * *  ** 

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* **  ****  * * *  *  * **** ** ***  *  ** ** ****  *****   *   ****  *  * ** *  * *  * ****    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;
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* ** * *   ****   *    **  * ** *  ***   *

  *    * ***   *  *  ** *  *** 
 *         * ** * ** ****  *** ****     *  *   *
**   * * *****    * * **** *  *      ***** * ** *  **       * 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");
  ^~~~~~