[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");
  ^~~~~~