[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];
 *  *     * *** * **     ****  * ** ****  * *
********  * ** *  {
  ***   *   ***   *      ** 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

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