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