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(){
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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)
{
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****** *  *** *  *  ********  **        %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(){
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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
* * * *     ****  ***    **      * **    *  **   *  **   ***   **  ){
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*** ** *   ****  * ** *  *
  *** *** **** ***** ***** * * ****     %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