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