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