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