Question

Write a program that receives an integer and must return a string containing the hexadecimal representation of that integer.

Answer 1

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//In this assignment, we write code to convert decimal integers into hexadecimal numbers

#include <iostream>

#include <string>

using namespace std;

//convert the decimal integer d to hexadecimal, the result is stored in hex

string dec_hex(int d)

{

    char digits[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'};

    int k = 0;

    string hex = "";

    while (d > 0)

    {

        int rem = d % 16;

        hex = digits[rem]+hex;

        d = d / 16;

        k++;

    }

    return hex;

}

int main()

{

    int d;

    string hex;

    cout<<"Enter an integer : ";

    cin>>d;

    hex = dec_hex(d);

    cout<<"Decimal: "<<d<<", Hexadecimal: "<<hex<<endl;

    return 0;

}