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