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