10-26 Exercise 2: Displays the number of its digits and their sum

Question

Write a program that reads an integer (1-4 digits) and displays the number of its digits and their sum. For example, if the number is 1234, the program should display 4 and 10

寫一個輸入四位整數 輸出數字的位數和位數的總和。例如，數字是1234程式會輸出4和10。

More information about Loops here.

 

Example input:

1234

Example output:

4 10

 

Example input 2:

245

Example output:

3 11

 

Answer 1

Hidden content!
#include<stdio.h>

int main() {
  * *****   ***      ** *  * a, a2, b1, b2, b3, b4, i, sum;
 ****  ***   ** *** * *******  *** **
*   * ** *  *    **      ********  *  *****  &a);
  *******       **      *  *  *
     *  *  ***  * * *   *  *    ** ** * {
    *  * * * * * ** * *          * * * * ** **  ****
** *   ***  *  ***  ***  **  ****  ** *** ** *  * * ** * *  break;
   *** ** ******  *  ****** *     **  * *****    *  *  * ***  ** 
    }
 * *  **** *** **   **  **  *  *    * *   ", i);

 ******* * *    *  ** * **   ** *  {
*******  *  ** *   ***  ***       * *  *   ******  **  *** **** *
   ** ** * ***  * *  * * ***   ** *     * * *** *  *   *****     ****     * * **
 **** *  * *    *  ** *** *  * *  ******  * *      *** ** *** *   **    
* **  ** ***** ****** * *  *** *      *       **     *   *** * * *  ** * ***
    }
 * ******  ***** ** **** *** if(i==3) {
*** ****   *  *    *   ***    **   * *** ***** *    *
**   ** * *  ** *    ****   *   **  **  * *  *** **      **     ****   ** 
* * *        * **  ** *  *      * ***  *  *  ** *   ** *  
    }
  * ** ****** * *     *  *  * if(i==2) {
 ** *** *  *    *   *****   *** ** **   * ****   *  ******  
 **      *   ** ** *  *   **   * ** *  *** ****   
    }
 *  *  ** ** ****** ** **   ***** if(i==1) {
** *    **    * * *  * ******* **     *  ***    * **    ****  *  *
    }
  *** **   ** * ** *   *** * * *    **** 
**** * * ** * * *         **     **   *** %d %d %d", b4, b3, b2, b1);
****   *    **  * * *    *   ***  * * *  ***  *   sum);
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output

---

can you use loop to solve this question?

Answer 2

Hidden content!
#include <stdio.h>
int main()
{
*  *  * ****  ***** **** **  *   n,count = 0, sum=0;

 * * **   *** ****   ***  **  * *  * * *   &n);
*** ****** *    * * ** **    *    * != 0)
* ** * * * ******* 
*  ***  *** * *** *   ***   **   **  **  **   ** *****  ****
     ** *      *** ****** **  ****  ******* * *  * * *   * *  *
 *   * * * *  *  ***  **   *** **  **   *  *  **     * * *  
**  * *  *    *** * * ** *  * *

 *  *** *   *****  *  ***   * **  * ** * *  %d", count, sum);

 *    * **  *       *    ****   0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output

---

-----------Re-judge-----------
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output

Answer 3

Hidden content!
  *** ***** *** * ** ***


*  **  

{
***  * * b, c, d, e, f, g;
 *    * * *  ***     *****
** 
** *  *   ** *   
{
* * *
* ***
}
   *** 
***     **
    *  *  
**  **
* ****   *  *   **  ****    
***  0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output

---

-----------Re-judge-----------
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output

Answer 4

Hidden content!
#include<stdio.h>

int main() {
    int a, a2, b[5], i, j, sum;
*  * **  ******  *** ***   *   * * **** * &a);
  * * ** **    ***  *** **
* **   **  **  *      *             {
   * * * **     ***   **  *   *  ** **  *  * ** **  *     
* ****    *  * **  * *  * **  *** **       *  ** ** *  *****  break;
  *** * **  *    **   * *****  **   *  *    **  **** *  * **  
    }
*   ***       *  *  * * **      * **     ", i);

  * **   ***      **  ** **  **** {
 *** **** *** **  ** *** ***  *   **  ** **   * ** *** *** ** *   *
* **  *   * ** *   *     *   * ** **   * **  ******  * * * ** * *      *  * 
** *** * **  * *  *  * ***   *** **  **  ** *** **    *** * ***  *    ****  
 * ******   *****  *** ** ***  * *   ****  *** *  * **     ** *** * **  *** ** ** 
    }
*  ** **        * **** * * ** if(i==3) {
*  *  **     **** * * ** *   * **   ** * * ***     * * **     
* *    *  ****   * *    * *****  * ** *  **  ***  **  * ** *** *  
 *  * ***** *   **  *      * *  * **   **** * *** ** ****   *  *   *** * * *
    }
*    ** * ***  * *   ***  * *    * if(i==2) {
* * *   **  *   ***  ** ***   * * ** *   *  ** *   *   *  **
**    *********    * *  * *  **  ***  ** * *  **        *  **  *   * *   **
    }
* ** * * *** *  * * * ** **    *   if(i==1) {
  **   * *    ***    **** *   **   ** *** ***        **
    }
 ** *****  * **** ** **  ***  *   ***  
* *** **  * *  *  ***       * **  ***  sum);
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output

---

prog.c: In function 'main':
prog.c:4:25: error: unused variable 'j' [-Werror=unused-variable]
     int a, a2, b[5], i, j, sum;
                         ^
cc1: all warnings being treated as errors

Answer 5

Hidden content!
#include<stdio.h>
int main()
{
 * *  * *  *  * * *  *****   n,digits = 0,sum = 0;
   * ** ** *  **    * * *  ** **  **  ** *  *   *** **
 *** **      ******     *  {
*** *   *   * *  ***    * *  * * * * *    **   **  * * ****  *  = n%10;
*** ** *********  * *    *   *    **  ***  *****    *** *  *  = sum + digits;
*** ** *  * * *** ** *   ** *  *   ** *****   * *  ***** **
   ** * * * * * * *  ** **     ** *   * ***** *** * ** 
 * **   *    * *  * *      **  while (n > 0);
 **    * * **  **** ***  * * * ** * ** ** *   **  
* **** * * * * **    **   **    * * *    d\n",sum);
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output

---

-----------Re-judge-----------
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(void)
{
 * *** *          ** ** ** * **** a,digits=0,sum=0;
*  *    ** *        *   *  * ***     ** *   *  *  *   
* *** *    ** **  ***** *** {
  * ** **  * * ***  * * *     * *****   * **** *** * *  ****  * * *
 **  ** **  *****  ** ***  *      ** * ***   * * *   * * * 
** *** ***   *   **  * ***      **  *  ** ** * * *****  
  * ** * * ***** *** *   
*   ** * * * ***  * ** *  **  (a>0);

  ** ** ***    ** * *  *    *   ****** **   %d",digits,sum);



*****  **** **  *** *  **   **      0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output

---

-----------Re-judge-----------
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output

Answer 7

Hidden content!
  *  * * ** ****

int     * *
{
**** * *  * *   *  *  * *  *       
 *****  *** ***      *   ** * **  *    = 0;
    * **  *  **  **  *  *  
* **   ***    * *   ***   *  *   * **** *   *    ** 
sum **   * 0;
do 
{sum += n % 10; * * *
n /= 10;
  *  *
} 
   * *  
  * (n    *    0);
{
** **** * * * **  ** **    *
}
* ****** *** ***** * * ** * **  (0);
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output

---

-----------Re-judge-----------
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output

Answer 8

Hidden content!
#include <stdio.h>

int main()
{
** **** * * * *  *   **     *  num,digits,sum=0;
  ***  *  *  ** *   *   ** * * ******* *** ** ** ***  ***   *  **
***   *  *        * ** ***   ****  *** ** * *  * *   **  ****  * * ** * * * * * *** * * &num);
* ***   * *** ** *    * *    *   ** *** ** **  *
    {
*  ****  *  *** * ** *   *  ********* * * *   *     * *  **  *   ** *** **   ** += num % 10;
*   **  ** * *  **   **    ***    **  * *  *   *  * * * *   ** ***   = num / 10;
*  ** ***  *        * * *  *** *  ******* *   * ** **** ** *  * *       *
* *  ****  ** ** *  ****

 ** **     *  *      * ** *  * *   *  **   * %d", digits,sum);

*** * **  * **  **   **   0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output

---

-----------Re-judge-----------
Case 0: Wrong output
Case 1: Wrong output
Case 2: Correct output
Case 3: Correct output

Answer 9

Hidden content!
#include   * *  ***   ***

int main()
{
 ******* * * *   *****      ** n,count = 0, sum=0;

    ** ****   * ** * * **  ***  **  * * * ***   &n);
 ***** *     **     * **     ***** != 0)
*******  ***** ** *** **
****  ** ****    **** *   **  ** *  ***   * *  *  *****     * **  * 
**  ***** * * **   *  ******      **    ** **  * += n%10;
* ** * *   *  *  *  *   *  ***   **  *   ** *         **  * /= 10;

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

*   *    * * * ***   ***     ****** * * %d", count, sum);

* **   **    ** *      **  **  0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output

Answer 10

Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{
** *   **   *    ** *  ** ** * * a,b,i,max;
* * ** ** * * ***      *  ****     *   **      %d",&a,&b);
*   *********  **  * ***  ***  * **   ** * ** **  * *  * *
 **  ***  * * ****  * **** *  
    * ****        *  ***** ** *  *  **    * **    ** * **   ********  ** *   * * * ** * *
  *   ** ***      *   ****         **      * *    *****  ** 
* ****    ***   * *   * * 
* *  **  * ****   **  ***  ***** ** *  * ****        ** 
  **  **  *    * ** **       * * 0;
}

Comments

Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output

---

-----------Re-judge-----------
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output