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