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];
     }
     
*    *      ***   * **  *  * * *   (a>b)
     {
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     {
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** **         *   * * *  *  ******* *
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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;
 * * * **   * *  *      **   *   * *     ** *  ** * ** ** ****
    {
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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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*    *    * ***  * *  * *  **      *   * *** **** ** *  *  **    * *
    ** *       * *** ***  *  ***    **    * *** *** * *     * **  **  * *
* **   *  * *   ***     *  **    ***  ***** *    *  **** *** **  *** ***  *     ***  *   *    *****
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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};
****** ** *    *  * *  ***** ***** ** *** * *  *     *   **  **






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

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

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

    }

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

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

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