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