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)
     {
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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()
{
* * * **** ** *  * *    *  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