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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* * **** *      * ***    *****  * *     * ****** * *** *   *  * ** *
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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;
  * **  ** * * ** *  ***  **   **  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
  ***  **        ***   * **     **** *  **   * ** *** * ***  * ){
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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