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

內容已隱藏
#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

內容已隱藏
#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

內容已隱藏
#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

內容已隱藏
#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
 }
 ^

---

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

內容已隱藏
#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

內容已隱藏
#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

內容已隱藏
#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

內容已隱藏
#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

內容已隱藏
#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

內容已隱藏
#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