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