[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;
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 * ** * *      ***  **  *  * *   *******   **  *  *** *  c++;
 * * ****  * ****      ***   *   *    *  **       else
    ** *  *** **  * ** * * *  ***     **  **     ****** c=0;
 ** **   * *** * * **** ** **  }
 *  *  *** *       *** *** * * * *
*  * ** *  *  ****     **        ** * *  *    *  ***  ***     ***  **  ** *
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* ** **** * **  ** ****   * **   *    *   * * * * *  *  *  **     **  * 
* **** * * *  * }
**   **  * ***  * 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;
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 * ** **       ** ** **  = strlen(s);
*  **  ***   **  * *
 **     * * * ******  *** = 0; i < (len /2); i++) {
 *  * * *     *  ** * *****  * *  **  (s[i] != s[len-i-1])
   **   *    **** ****  *  **    * * ** *      *   *    0;
  *  ********* **   **
**    ** **  *    *
    *****  *  **********  (i >= len/2)
 *  * **** * ***  *****  * ** **** 1;
   **   * * ***   **   ***
** *   * ** *  ******* * *  **    * 0;
 }
 
 int main() {
* **** * * * *  *** * s[256];
**      *  *  **  ***
 **       **   *   ***   * {
* ** *    * * *   ** ** *  *  ****
** * **  * * **   ***    *    ***** ** 
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 * *   ** ****  *  *  **  *  *    **  *    * ****  * * *  * *   s);
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 ***** * * * ** * **
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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;
*  * *     *****   ****   **   ** ***   *  *  *  *  *** *    *  *
     ***   ***  *   ****** ** * * * *  * * **  *   ******    ***  
* **  *  * * ***  ** **   
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   *  **   *   * **  *   * **** **** ** *  *** **   ** ** 
   *        ****  ** **
 *   * **  ** *  *      ** **  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];

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

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