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;
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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;
  * * * * ** *   **   *    *  * = 0;
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*   * *  * *********     **    (n != 0)
**** ** ** **  **   ****  *

*  **   *  ****        * *** *    *** * ** **   ******* **  = n % 10;
*** ** ***   *  ***          * * ****   *   **   ****   * = sum + remainder;
 * ****  * * *    ***   * *      *    *  *  * *  **  /= 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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***  **  *   ***   ** *    **  ** **   ****  * *  * *   ** ** ** * ){
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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