第二次期中考 -5 11的倍數

Question

若一個正整數的奇數位數字和與偶數位數字和兩者差的絕對值是11的倍數，則這個正整數就是11的倍數，否則就不是11的倍數。

請寫一個程式來判斷輸入的數是不是十一的倍數。

 

輸入說明：

會輸入一個正整數N，N不會超過1000位。

 

輸出說明：

如果輸入的數字是11的倍數就在螢幕上輸出YES，否則就輸出NO。

 

輸入範例：

11111111111111111111111111111111111111111111111111

 

輸出範例：

YES

Answer 1

Hidden content!
#include<stdio.h>
int main()
{
  ** ** * **      * ****  ** * * **   ** *  i;
** ** ***  * ** * *    *    * * *  **   a,b;
     int N[1000];
    
     scanf("%s", N);
     
      **** * * *  * *  *  *** ***  (i=0; i<=1000; i=i+2)
     {
   *  ** *     * ** ***  * * * **  * *  ** **** ***  *  *** 
  * *   * * ** * **   *** * * *  * ***   * *****   *** * *  * *   = a+N[i];     * **    ** *    * * ****** *****   **    *** * 
     }
     
* *  *** **  *** *** **  ******    * * (i=1; i<=1000; i=i+2)
* **** *  ** *  **** *   * **   * **
  ***    * **  *** *** **** **   **   * * * *  *   * *   = b+N[i];
     }
     
  ***  * *    * ** * ****    ** **  (a>b)
     {
 ****** ***  *   **** *   ** ** **  ** **    *  *   ** ****    ((a-b)%11==0)
   *** ******  * ****   * ** * *   * ** ****          * ** *  
   * ******   ***** *  *******    *   ** **      *  ****  ***   **  ** * *  ** *  *  **  **  *** **  ***
 *** * ****   ** * **** * ***  *     **** *       * ** *  
*  * * *  ******  * ** * * *    * *  *** *  *   *  * *  **** * *
* *  **   ***** * * **   **** * ******   ** *  * *   *
* ** * ******  *** *   * *  *  *      * **** *****  ** ** **   **  *** * ***   * *        * **** **  ** ****** * * *
*   *****  * *** * ***  **  **       ** * ** ***  * **  ** 
*     **  * * ****  *    **** * *  ****   *   
**** **  *  ***   *  **  **  * * ****  *** * if (a<b)
     {
   ***   * * **  ***    * **  * *  *  * ** ***   *  **** ****   ((b-a)%11==0)
   * *** **** *** **  *  **  ***  *  *    *    ****  *  **  * *
  ****  *  ** * * * *  *** * *  ** * * *   * *      *   *  *   *     **   * **** **  **  *  **** *** *  ** 
** *   *        * ** * ****    * * *  **   * **  *** ** *** *   *
 ** *** **     *    *** * ** *    *     *  *********** * * *   *  
 ***** * *  *    ** *     ** ** **  * **  **** * * **  **  *** *  *
 *   *      ***   ***    *        * **** * ** ** * *   ** *   *  ***  **** * * **  ****   * *  ** *** *******
  *    ** *    *  * **    ****    ****  * *       * **   ** *    *** *
   *         **    * **** * * *  *****   **
 ** ** *   ***  *  ****** **      * *   **  if (a=b)
**   *  * ** *  *  * * ***  ****** **** *
 *** **** * * *  ** **   ** **  **   **         ** **       * **** * ******  * *     **** *** **  * 
*  ***    **    **** *****   ****** ***  *    
***   * **  * ** **   **** * * ****
* ******* **  *   *** * * ****  ** ** ** * ** *  *     *
** * *  **** * *   ***  ***   **** * *   0;
      **** *  * ****** *   ** ** ** 
}
  *   ** **  *  * *  **  *     ***   *** * * *  * ***       * 

Comments

prog.c: In function 'main':
prog.c:8:11: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'int *' [-Wformat=]
   scanf("%s", N);
           ^
prog.c:48:7: warning: implicit declaration of function 'system' [-Wimplicit-function-declaration]
       system("pause");
       ^~~~~~

---

prog.c: In function 'main':
prog.c:8:11: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'int *' [-Wformat=]
   scanf("%s", N);
           ^
prog.c:48:7: warning: implicit declaration of function 'system' [-Wimplicit-function-declaration]
       system("pause");
       ^~~~~~

Answer 2

Hidden content!
#include <stdio.h>

int main()
{
*   *  **   **   *  *  *  **  * ** long long n;
****  ****   * ** *   * **   *** **   *  ** ****  *    ** **   *  * 
    {
  * ** * * * **  *    *   * ** **   *   *   ****  **   * * * **
  **  ****   *  *  * **** *      *** *****   *   ** ** **** ** **        *   * * ***   *  *  *
  * *   **** ***  *  *   *

*       * ***  ***  ***   * ***** 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output

Answer 3

Hidden content!
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
int main()
{
 *   **** ***     *  *   *   * input[10000];
*** * ** * **  **  * ****** ****    ** *  *  *** * **  *
    {
 **  ** * **  *** *  **     * *** **    ****** * ** * * **   i,l=strlen(input),a=0,b=0;
*  ** ******* *   **** *   *   ** *    *  *  *** ****     *  ***  ** 
*      ****  ****** **  **   ****     * * **** *     ***** ** 
 * **** * *  ***  *  **  **** ****  ** * **  * ** *  ****** ***  ****
 ****  * ***  ** * * *** **    * * **  * ****      **  *   
 **  *** * ****  * ****** * * ** ***  ***  ****        ** *   **
 ****** *    ****** * * *** *   **  *       * * *     ** ** *** * *  *  * ***     *** ** **       ***
  ****     **  *   * ***  ***  * *  * **  **  ****  **   **
** *  * *  *   **   *  ***  *  *    *  ** * ***** * *  * *   *  ** * **  **  ** * *   *** * *   *****  *  *
    }
   *  ***  *    *** *    * * 0;
}

Comments

prog.c: In function 'main':
prog.c:7:19: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[10000]' [-Wformat=]
     while(scanf("%s",&input)!=EOF)
                   ^
prog.c:14:12: warning: implicit declaration of function 'abs' [-Wimplicit-function-declaration]
         if(abs(a-b)%11==0)
            ^~~

---

prog.c: In function 'main':
prog.c:14:12: warning: implicit declaration of function 'abs' [-Wimplicit-function-declaration]
         if(abs(a-b)%11==0)
            ^~~

---

prog.c: In function 'main':
prog.c:14:12: warning: implicit declaration of function 'abs' [-Wimplicit-function-declaration]
        ans=abs(a-b);
            ^~~

---

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output

---

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output

---

prog.c: In function 'main':
prog.c:13:12: warning: implicit declaration of function 'abs' [-Wimplicit-function-declaration]
         if(abs(a-b)%11==0)
            ^~~

---

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output

Answer 4

Hidden content!
#include <stdio.h>
#include <string.h>
int main()
{
* ***** *** * * * ***    **** *    * i,j,add=0,even=0;
  * * *    ** *  *** ******* ** a[1000]={0};
 * *  ******  **  * * * ** *       **   *  * **** *  **






 **  *** ** *****   *** *   *  **     * * ***    ****** 
    {
 *   *  *  *    * *   *    * * * *   *** *  *  ***     * ** *     *
* * *     **  ***  ** *     * **    **  *  **  *** ***** **
 * ** ***  * **  **    * **  * * * * *    *** * * **** 

***   **** **    **  ***  

  * *** * ** ** *  * ** *****   ** * *** ** * *** * ** *
    {
**    **** **  * *    ** *  * *  ** * *  ** *   * ** **  * *  *** * )
  *  *****   ******** *******  *** *   *   * * * *   * *  * *
 *** ***  * ** **    ***   ***  *   **** * *****     *** ** 

    }

 * * **  *   ******** *  *  **  ***

  * ** ** ** * * ** *  * * * **  **  *** ****** * *  * *  * *****  *   * *   **  

* *    ******  **  **   **  * if((add-even)%11==0)
 **       ***    *   *   * ** * **** * * ** *  **** *    ******* **   
  **  * **  **  ***   ****  *
   ******  *** ****   *** **** ***  * ***** **** * ****   *  * ** ** *    * *  


***** *  *** * * * *  *  ** * * 0;
}

Comments

prog.c: In function 'main':
prog.c:10:13: error: 'i' undeclared (first use in this function)
     for(n=0;i=0;i<=a;i++) //\xe5\xa5\x87\xe4\xbd\x8d\xe6\x95\xb8\xe5\x81\xb6\xe4\xbd\x8d\xe6\x95\xb8\xe5\x88\xa4\xe6\x96\xb7,a<=10^999
             ^
prog.c:10:13: note: each undeclared identifier is reported only once for each function it appears in
prog.c:10:21: error: expected ')' before ';' token
     for(n=0;i=0;i<=a;i++) //\xe5\xa5\x87\xe4\xbd\x8d\xe6\x95\xb8\xe5\x81\xb6\xe4\xbd\x8d\xe6\x95\xb8\xe5\x88\xa4\xe6\x96\xb7,a<=10^999
                     ^
prog.c:12:18: error: invalid suffix "n" on integer constant
       if(c=a/10^(2n))
                  ^~
prog.c:17:22: error: expected ')' before ';' token
      for(n=0;i=0;i<=a;i++)
                      ^
prog.c:19:38: error: invalid suffix "n" on integer constant
                           if(d=a/10^(2n+1)
                                      ^~
prog.c:20:27: error: expected ')' before 'even'
                           even+=d;
                           ^~~~
prog.c:21:5: error: expected expression before '}' token
     }
     ^
prog.c:25:1: error: expected '}' before 'else'
 else
 ^~~~
prog.c: At top level:
prog.c:28:2: error: expected identifier or '(' before 'return'
  return 0;
  ^~~~~~
prog.c:29:1: error: expected identifier or '(' before '}' token
 }
 ^

Show more...

---

prog.c: In function 'main':
prog.c:6:12: warning: zero-length gnu_printf format string [-Wformat-zero-length]
     printf("");
            ^~
prog.c:7:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(a);
     ^~~~
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:14:16: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     for(i=0;i<=strlen(a);i=i+2)
                ^~~~~~
prog.c:14:16: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:14:16: note: include '<string.h>' or provide a declaration of 'strlen'
prog.c:22:17: warning: incompatible implicit declaration of built-in function 'strlen'
      for(i=1;i<=strlen(a);i=i+2)
                 ^~~~~~
prog.c:22:17: note: include '<string.h>' or provide a declaration of 'strlen'
/tmp/ccEDkE9I.o: In function `main':
prog.c:(.text+0x51): warning: the `gets' function is dangerous and should not be used.

---

prog.c: In function 'main':
prog.c:6:12: warning: zero-length gnu_printf format string [-Wformat-zero-length]
     printf("");
            ^~
prog.c:7:5: warning: 'gets' is deprecated [-Wdeprecated-declarations]
     gets(a);
     ^~~~
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:14:16: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     for(i=0;i<=strlen(a);i=i+2)
                ^~~~~~
prog.c:14:16: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:14:16: note: include '<string.h>' or provide a declaration of 'strlen'
prog.c:22:17: warning: incompatible implicit declaration of built-in function 'strlen'
      for(i=1;i<=strlen(a);i=i+2)
                 ^~~~~~
prog.c:22:17: note: include '<string.h>' or provide a declaration of 'strlen'
/tmp/ccuq6Kb5.o: In function `main':
prog.c:(.text+0x51): warning: the `gets' function is dangerous and should not be used.

---

prog.c: In function 'main':
prog.c:6:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[1000]' [-Wformat=]
     scanf("%s",&a);
             ^
prog.c:13:16: warning: implicit declaration of function 'strlen' [-Wimplicit-function-declaration]
     for(i=0;i<=strlen(a);i=i+2)
                ^~~~~~
prog.c:13:16: warning: incompatible implicit declaration of built-in function 'strlen'
prog.c:13:16: note: include '<string.h>' or provide a declaration of 'strlen'
prog.c:21:17: warning: incompatible implicit declaration of built-in function 'strlen'
      for(i=1;i<=strlen(a);i=i+2)
                 ^~~~~~
prog.c:21:17: note: include '<string.h>' or provide a declaration of 'strlen'

---

prog.c: In function 'main':
prog.c:7:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[1000]' [-Wformat=]
     scanf("%s",&a);
             ^

Answer 5

Hidden content!
#include<stdio.h>
int main(void)

{
* *  ** *    *  *  * ******   num[1000];
* * ** **  *** *      * ** **  i,a,b;
** * *****   **   **  *  
** ** *   **  ** ***   *  * *   *** * * ****** * a number:");
*  * ** *    ***  * * ***     * = 0; i<1000; i+2)
** ** *   * *  ***  **   
  ** * ******     ****   ** += num[i];
* ** * ***  ** *****   += num[i*2+1];
  **   ** * ** ** *  *   * * ***
***      * *    * **** *
 *    **   *  * * *   ** *  *** * == 0)
***** * * ****** * ** ** **** ***  *   *
      *  *    ***   ***** *  
*    **** *    * ** *  ** * ** *
  **  ** **  ******  * *   ******* **  **** * *  *
*** **** *** ******  *  * * * **  
**  * *     ** ** **** **** ********* 0;
}

Comments

prog.c:1:2: error: invalid preprocessing directive #inlude
 #inlude<stdio.h>
  ^~~~~~
prog.c: In function 'main':
prog.c:8:5: warning: implicit declaration of function 'printf' [-Wimplicit-function-declaration]
     printf("Enter a number:");
     ^~~~~~
prog.c:8:5: warning: incompatible implicit declaration of built-in function 'printf'
prog.c:8:5: note: include '<stdio.h>' or provide a declaration of 'printf'

---

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output

---

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output

Answer 6

Hidden content!
#include<stdio.h>
int main()
{
*  *      * ****** **  **    *   x;
 * **   *  * * ****  *     ** * ******    * **  enter a number\n");
  ***** *  * * *  *  ****** *** * *        * **    **  * 
 * * * *** *    **   ** *** *  * 
 *** *****  *    ***    * ***   * * ****   *  **  *    *** *  ** ** *  *
 ***  *** **   * * * ******** ** *    *   * * *  ***
 ****   * ***     *    * *  *** * * * * ****** *  ********   ***  **   *   *   **** *  **  **
    
*   ** *  ****** * * *     **    *
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output

---

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output

Answer 7

Hidden content!
#include<stdio.h>

int main()
{   
     **** **   *  *     * **  a;
* * *     **  * *** **** ********* * ***   your number:");
*** *   **  *** *   *  ** * * ** *** ** ** **     * ** **** 
   **  *  *  ** ******* * *  *** % 11 == 0)
*  *   * ** * *   * * **** ******* **   
**** * **      *** ****  * * ** 
 *** ** * *    *** ** *  * ***      ****** * *    * *  
   *  ** *     *   * 
*    ***    **      *  **    *** * *********
 **  * *** *   *** *      ** 0;
}
 * **   * * *        *  *     * 

Comments

prog.c: In function 'main':
prog.c:13:5: warning: implicit declaration of function 'system' [-Wimplicit-function-declaration]
     system("pause");
     ^~~~~~

Answer 8

Hidden content!
#include<stdio.h>

int main(){
 **** *  ** *** ** * ***  * *
**  ** ** *** * * * * *  * ** num;
* * ********  * *  **  * 
 *  **   ***  * **  ** *    *    *** ** **** * **** **  **    * *
   ***** * *   * ***  *  
    
 * **      *     ***   * ******  *** 
***  **  ** *  * * * *   *   *** * *** *** * * **   
  *    ** *   * * **     **    *** 
 **** ** **** *  *** *** *    *   *  *   **** ****

 *   *  **** *  *    **
  **   **  *   *  **
}

Comments

prog.c: In function 'main':
prog.c:8:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[1000]' [-Wformat=]
     scanf("%s",&ch);
             ^

---

prog.c: In function 'main':
prog.c:8:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[1000]' [-Wformat=]
     scanf("%s",&ch);
             ^

---

Case 0: Wrong output
Case 1: Wrong output
Case 2: Correct output
Case 3: Wrong output

---

Case 0: Wrong output
Case 1: Wrong output
Case 2: Correct output
Case 3: Wrong output

---

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output

---

Case 0: Wrong output
Case 1: Wrong output
Case 2: Correct output
Case 3: Wrong output

---

prog.c: In function 'main':
prog.c:8:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[1000]' [-Wformat=]
     scanf("%s",&ch);
             ^

---

Case 0: Wrong output
Case 1: Wrong output
Case 2: Correct output
Case 3: Wrong output

Answer 9

Hidden content!
#include<stdio.h>
#include<stdlib.h>
int main(void)
{
* * *  *** *   *     *   *  *  *    in,a;
 ******* **** *********   * * **   ******  **   
 *  ***      *** *  ****
***   *** *  ** * * ***  ** 
*  * * *  *** *** ** ** * * 
 * **  *      * *****  *  ** **  *  
 **  ** * * *   ***  ***** ** * * ** * ***  * ****    ** * *  *  *  
 * *  *  ** *   *     *** *   ***  *  ***   * **   *
* * **** ****  * *   ***  * ** if (a!=0){
 *      *** **    *  *** * *    **  *      *   * * ******   ****     * * * *  ** 
 ******** ** ** ***  **** * *  * ****  **** *  *****  * ***  * **
 ** * *** ** *  ** *** ** 
system("pause");
return 0;

}

Comments

prog.c: In function 'main':
prog.c:6:14: warning: format '%ld' expects argument of type 'long int *', but argument 2 has type 'long int' [-Wformat=]
     scanf("%ld",in);
              ^

Answer 10

Hidden content!
#include<stdio.h>
#include<stdlib.h>
#include<string.h>
#include<math.h>
int main()
{
     *  ***  ** * ** ***  *    * j, k = 0, l = 0;
*****  * * *       * * * * * str[10000] = {0};
** *  ** * *  ***** **  **** ** *  *  *     *** str);
* * *****   *  ** *  ***  * = 0;j < strlen(str);j ++)
 *  ** *** *  * * * ** *** * *
****  *      ***** *  * **  ***** ****** *    **    * *  **  ** *    ** % 2)
     *** ** ** *   *  *****     *  * *  **   *** *  * * * * 
** *** **  *** **  ***  *****   * ***  ***** *  *   *  * ******    *******  * ******  += str[j] - '0';
 *  * * *** *  * **** **  *  * *** ***  * *     **** *  
* * * *   * **  **  ** *  *******       ** ****  **
    ************   ** *    * *** * *   * *     * *  **    *  ****** 
  ***    *    * *     *  * * *  *  *   * * * *   * * *  *  **   *** **   **    += str[j] - '0';
*  * *  * * **  * * * *** *** **    *   * * ** *
     **  *** * **  *  **
 **  ***     ***    *** * **   * **** - l) % 11 == 0)
* **  ***   *     *  *   **  *****   *    *  *   ******      ** ***  
 ***  *  ****** **     * *
 *  * * * **  ** *  * ***  ** *   ****  *** *** *** *** ****   *****    *  **  *
}

Comments

Case 0: Correct output
Case 1: Wrong output
Case 2: Correct output
Case 3: Wrong output

---

-----------Re-judge-----------
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output