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