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