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