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