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