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