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];   * **    **      ** *  *** *** ***      *** * *  ***   * 
     }
     
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   ** * *** **  ** * *  *** *** ***  *
*   *  *****   *****  *   ** ** * **    ** **  *    **** = b+N[i];
     }
     
  **  **    **  ** *  *      * **  ** (a>b)
     {
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  *   **** **  **** * *****  **    ** *  ******* ***** * *
*    *  *  ** *****       **** *   ** ** **  **  * **    * **  * **   ***    * *     *   ***  * **  *  **
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****  * **    *  ****   * ***     * ** ** * 
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     {
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    **   * *   ***  * * **   *   ** *   * **     * * * * **
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  **** **** *  *  * *   **  ******  **  **   *   *** ***
*** *  * **  *  * *  **** **** * *** **   
*********     **    ** * * *****  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()
{
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*   ****    *** * **   ***  **** *    *  * ** *  * *     
    {
 **  *  * * *  **** ****  *      ** *** ** ** **   *      *  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