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