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