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

 **  *     *   ** ** **** ****** ***   %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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int main (void)
{
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**    **      * **      ***    *** * ** *  * * **  ** * /= 10;
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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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  *   * * **** *****  *** ***** **   %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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  ** ****  **   ** ** *   * *  * ** *     %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)
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 *  * * * **  * ** *****  ****    * * *   *   * ** ***** *
 *  *      **  * *  * **** * * *  ***   %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