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)
{
 *   *  *      *    * ** n, count, sum, t, remainder;
  *  *   * ** *    * *** *  * * = 0;
 ***  *   *             * **     = 0;
  *  **  *     ** * * *   **** **     **  * **     &n);
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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;
****   *  *   ***  *      *       **  *       *** *** *   *** ){
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*   **  *  **    **  *    ** ***  *  * *  * ***      
*  **** ****  *  ** *  * * 
* **  *  *  *     **  **   *** * ** ***   * %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