[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];
  ***** *    *   **** *** *  *   * * * * * 
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*  *  **   * * ***  ****   int * ** *   
***  ** *    * **   * *   * ** *
 *    *  ** **         *     *  * *  int test=y/2;
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*  ***   * *  ** *  *   {
 ****          ** ** *   *   * * 
 **       *** *  *          * **        **  * *  * 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;
**** *  *  * **** **
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** **  *  **  * *   * ** (i >= len/2)
*   *  * *   ** **      *     **  1;
   **  * * *   *   *** * 
 * *   ** * *** *****  *** ******* 0;
 }
 
 int main() {
 * **  *** *  ***  * **  s[256];
 **  ***** ** ** ***  
 * ***  ** **   * * * * * {
  *** * * **** *  * *****  * *     *  ***
   *     *  **  * **    * 
     *****    ******** *     * *      (is_palindrome(s))
* *    **  **** **  *  *  **    * * * *  * *** ***   * *  **    * *    * s);
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* * *  *       *   * ** * *** ** ** * *  *** **  *   ***   ******* ****   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;
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  * * ** ** *** i = *   * *
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 *   *  *     *  {
 * * * **    ** *****   * **     **  * *    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");
  ^~~~~~