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;
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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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***  *       **** * ***

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* * ** *  **** ** *  *      * * * * *   ****    * *    * *   /= 10;
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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(){
* *  ** **  *     **  **** *  i;
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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