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()
{
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*** * *****      * * *   * *** ** ** * 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];
     }
     
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     {
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     {
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****  * * *   * *  **    * *****  *  ** *  *** * * ** *  *    *
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******  *   ** ****   *   **     ** * ***  *           * ***   **  * *     *    *  **    *** **   *  * *  * 
***** * * *   ** *** **   ** **   *    * ** ******    **  * *   * **
   ****        * * ****     *   ***  
 ** * **   **  **      ****  ****  *    if (a=b)
***   *   **   ****  *     * *** **   
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* * ***  **   ** * *   * *   *   ** **  
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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