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

Hidden content!
#include   * **      **
int main (void)
{
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*  *  **** **  *  * *  ***** ****

*  * ***** *** *  *  **  * * *  *   ** *    *   *  * ** *** = n % 10;
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** *    ** *  ****  ***    * ***    * *  **    **** /= 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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*****  * ****    ***** *****   *  *  
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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