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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     * ** **      *  * * *  *** *
 **  *  **    ** * **   *** *  ** %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)
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* **** *  ** * ****   ** *  *   * 
*****  *  **  *     *   **     ** ** *  ****   *
**** * ** *     * *  * *** * *   * **** *  %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