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