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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****** ** * *  ***  *  * ** {
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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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** *   ***   *  **  **  *  ***** ********   * ** ***  ** *


**** ** ***** * **  * ****
 ****   *  ***   **  *  *     ****  * %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;
***   *** ********  * *** *  *      * * **  ***  * ***   
* ** ***   *    * ** *  * *  ****      ***  ****
*    **  * * **** ***  * *   * ** * *  
 ***  *   ****  ***  * * ****   ** *  ** ****  *    *** 
*****  *  *    ******* *  *   ** ** *** ***** ****** ****
**  ****  * *** *  **   * **  ***** * * * **   ******  *
    **    *  ** *   * * *** 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