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

Hidden content!
#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];
     }
     
   *  ** *  *   ** ****     *** *      (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

Hidden content!
#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

Hidden content!
#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

Hidden content!
#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

Hidden content!
#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

Hidden content!
#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

Hidden content!
#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

Hidden content!
#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

Hidden content!
#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

Hidden content!
#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