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