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];
     }
     
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     {
*  * * **     *    **     *** ** ** ** *   *** ***  *** *  * ***   ((a-b)%11==0)
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     {
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****   *  *  * * **  ******  *** * ***  * *     ** ** ***  *
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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