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