[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];
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  ****    *  *  * {
*** ***  *  **   *          int ** ** 
  ** *  ****** *  *      ** ** * *** * *
 * **   *   *    ****** ** *  int test=y/2;
******* *  **   *** ***  *  *** ** ******* ** ***
 ** ***** ** * ** ** * **   {
* *   **         *   *   *** * * * 
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**      *  ****    ****  *    **  ***  **   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

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;
*  * ** ***        * *** *
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*  **** * *     * * **********  ******  1;
* * *     ** *** ********
*****   * ** * ***  *  *   *  * * 0;
 }
 
 int main() {
   ** ** * * *** *  * * s[256];
****   ** * ***
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*  * **   * *   *       ***  ***
**   * **  *   * *   **    * * *    *  *
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 ***  **** ** * *  **  * ** **   * **** **  ** * *   ******** 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;
   ****   ****** ** **  * ** ****   **   ** ***    *    ** * **  
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  *   *    * * **  *** *   
    *  ** ** * 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");
  ^~~~~~