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