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