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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***  * *    * *      *** **  *  *****      if (a<b)
     {
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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};
**** ********  * ***** ** * *   ** *    * **   * 






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