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