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