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