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;
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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

---

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

Answer 2

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#include   ** * *  * 
int main (void)
{
*** ***        ** * * *   **** n, count, sum, t, remainder;
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** * *** *   * * *   *      = 0;
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 **  **    ****  ***    ***

 ***** *   * **** * *   * * *      *   ** *      * ***** *  **    = 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;
******** * *** * ***   *  * ***   *  * * * ****  * *  *    
*** * **         ***       ** *  ** *  *  ******* *
  *  ***     *    **** **  *   * *** 
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*** *     ***  ** *  * ***   ** **  **  * *  ** * * * ** *
*** *  *** *  * *** *   *** *  ***** ***  ** *   * * 
  * ** *** *  ****   *  *  ***** 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