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