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