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