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