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