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