Converting Decimal to Hexa-Decimal

In this blog i will be writing all crap code for the questions asked in various interviews.

Starting with the following question.

How to convert a decimal number to its equivalent Hexa-decimal equivalent. Give a C/C++ code for the same.

Explanation and Algorithm :

If you don't know or Forgotten what is Decimal/Hex-Decimal Numbers, the following table will tell u that.

HEXADECIMAL	0	1	2	3	4	5	6	7	8	9	A	B	C	D	E	F
DECIMAL	0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15

Steps:

1. Divide the decimal number by 16.   Treat the division as an integer division. 
2. Write down the remainder (in hexadecimal).
3. Divide the result again by 16.  Treat the division as an integer division. 
4. Repeat step 2 and 3 until result is 0.
5. The hex value is the digit sequence of the remainders from the last to first.

Example: Convert the number 188 DECIMAL to HEXADECIMAL

DIVISION	RESULT	REMAINDER (in HEX)
188 / 16	11	C (12 decimal)
11 / 16	0	B (11 decimal)
ANSWER		BC

C++ Code:

#include <iostream>

using namespace std;

int main(){
    int iDecimalNumber;
    cout<<"Enter a decimal number to convert it to Hex :";
    cin>>iDecimalNumber;
    cout<<"Its Hex Equivalent is: "<<hex<<iDecimalNumber<<endl;
}

C Code:

#include "stdio.h"

int main(){
    int iDecimalNumber;
    printf("Enter a decimal number to convert it to Hex :");
    scanf("%d",&amp;iDecimalNumber);
    printf("Equivalent Hexa-Decimal Number is :");
    printf("%X\n",iDecimalNumber);
}

Simple isn't it :P. you didn't like it ??.
You can go around the globe. Think smart :D.