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(){
*   *  * *****   *     * ** i;
 *  ***   ***** * ***** ** ** sum=0,counter=0;
   *   **   **  * *  *** **   ******* *** **           
 ***    *  **    *  *** *  {
  **  *  ***    * * *    **    *  *    ** *** ****   ******
    **            *   ****  *  *  *   * **  **   * i%10;
 ** ** ****** *  ** ** ** **  ** ***  ** *** *  **     * *
  *** ** * ** **  *  ***** ***** *    * ** 

   * **  * *** ****    ** *  %d",counter,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 2

Hidden content!
#include * *  ****** * *   
int main (void)
{
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 *  ** **    **  ** *   * * *   = 0;
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    * **   **       ** *    *    (n != 0)
**    **   **  ******  * **** *  

 **   * *       * ** **    *  *    ** ** ** * **** = n % 10;
 * *  *  **** *****    *****  ***  * ****    ** * = sum + remainder;
   *   * ***   *    * * *** ** ** **** *** *** /= 10;
**** * ** **  *  ****    **  * * *    * * * * *     *    ****


*** **   *  *   *** **   * ***
 *   ** * * *   **    *    ****         %d", count, 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 3

Hidden content!
#include<stdio.h>
int main(){
  *** * ** ***  **   *  ****  i;
* * * ** ** * *  *   *   *** *   sum=0,counter=0;
 ** *  ** *** ** **  ** *  *  * * *****   *****  **   *** * ){
* *  ** *****  * **    ***  **  **  *  ****** **   
 *     ****  ***  *  *  * **   **  *   * *     ***  **
    **  * * **     ***  *
**   *** **  * *   **  * * ****** * *  %d",counter,sum);
** **     ** **** * ****** 0;
}

Comments

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(){
  ** * * * ** ****            i;
* **  ** ***  **** **** *  * ** sum=0,counter=0
** *  *** *    ****  *  *    *** *    * *  *   *** *    *   ){
  **** *** *   * **  ** *  ** *   *  ***     * *    *  ** * ***
***  * ** **  *    *  **    *   * *  ** *   * *  * ***
***  *  *  * ******* ** *   **
 ** **  ** * **  * **  ***  *  *   * %d",counter,sum);
  * ******  ***  *  **   **  0;
}

Comments

prog.c: In function 'main':
prog.c:5:5: error: expected ',' or ';' before 'while'
     while( scanf("%1d",&i)!=EOF ){
     ^~~~~
prog.c:3:9: error: unused variable 'i' [-Werror=unused-variable]
     int i;
         ^
cc1: all warnings being treated as errors

Answer 5

Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{
 ****  **   **  ** *** * **  a,sum,b;
**   *  ****    ** **   *  ***   *** *  ***  ** ***
*  * *** * ** * * **** * **   *  ***** ** *****   ** ** ** *  
     *      *** * *  ***  **    *  ** * 
*   **      * * * *     ** * * * * *** * ** * **** 
 * ***  *   * ****************  *  **** ****      *   * *  * *  
 *****   *  *** *** ** **  **    *     ** **  *  *  
*   * **    * * *      * *   ** if(a<=99&&a>9)
****     *   * * *      ***   ** *  ****    **** **  **** * 
  ** ***        * ******     
*  *******  **    *  * *  * * ** ** *** ***   * * *  *****
* * *** * * ***   *  *  *  * * ***   *   * %d",b,sum);
    **  * ****  ** ** *     *** 0;
}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output

---

-----------Re-judge-----------
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output