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