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