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