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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*   * ****  *    *    * * * * *  *   * 
 *  * *** *   * ** ** * ** *  ** *** *    * *  if (a=b)
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 * **  ** ***  *  * * ****  *       
* ***  * * **     **      *** ****  * *    * *
   *   *** * * * *  *****  *   *  ** ****** *         * * ** ** 
 * **  * * * **  * *  **** ** *     *** ** * *     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