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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 ** *   ***   **  ** * *   ****** 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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 ***   *  ****  *  **  ** **   
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  * *   ****  *   * * *  ****      **** 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