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

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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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    **   * *** *   *  *  * *    **** * **    * %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