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