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

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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(){
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** * ***    * *  *** *   sum=0,counter=0;
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*  * **   ***     **  * 
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*      * *   * * *  **** * **** 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(){
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**** **  ** * *   *** **  **   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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 *  ** *  *  *  ***  *** ** ***  ***  **  
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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