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