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

 **  * *  *    * * ***  *   * *  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;
 ****    *  * ***  **   *    ** * *   *** ******    *  * *  **  *** 
 ** ****  *** *  *  * *  *  * ********   *****  * *** *****  *  
**  **** ***   *   *    * **** ** * *  * * **    * *  ** * *** * * *** 
* *        ***** ** *     *    * *   * ** **** *     ****  **
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 * *** * * * ***** * * ****  ** * *     ***  * * *   ***    * ** *     *    ** **** **  **   ** ***
 *  **  ****** * *  **   **   *** *     *********     *  
*   ** * ****   **         * *  ***  *  ****  *  *    * * **    **   *   *    *****  * **  * *  ** 
    }
 **    ******   ** ** *      *  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};
  *     **  * * * *  *  **** **   ****  * *  ** ****  *****






* ******  * *  * * ***** **  *   **  ** *  * 
    {
* * *   ******    *   *     *  * **   ***  **** *  *  **
* *  * **** *     **  **  *  * *** *  **** * *  **   ** ****
****   * ****  *               * * ** *  * *    

** * *     *** * * *  *****

* * *******   * *     **   ** ***** *    *** ***    *   ** 
    {
 *** *  ***** ***     * *** * ***   ** ** ** **   ** ****  )
 *** ****  *****  * *****  *** *** **** *     * *   * * *  
  *    ***  * *** *   *    **** *    ******  * *  

    }

*****   **   ***  *  * **  ** *   * ** **

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  **  **     *  * *  **** ** *   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