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