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