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