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