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