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