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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 **     *  *   ** ***  ** ***** {
********         * ****  * **** *  **  *          *  **   ***** 
*  * ***** **  * **  ****    *    **** **  *** **** * ** 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;
      **** *  ****   **   * * ** *  **** * **   &n);
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*******  ** *** * *** **  * 

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