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