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