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