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