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