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