Print Pretty.cpp-HackerRank

Problem-Your manager gave you a text file with many lines of numbers to format and print. For each row of  space-separated doubles, format and print the numbers using the specifications in the Output Format section below.

Input Format

The first line contains an integer, , the number of test cases.

Each of the  subsequent lines describes a test case as  space-separated floating-point numbers: , , and , respectively.

Output Format

For each test case, print  lines containing the formatted , , and , respectively. Each , , and  must be formatted as follows:

1. : Strip its decimal (i.e., truncate it) and print its hexadecimal representation (including the  prefix) in lower case letters.
2. : Print it to a scale of  decimal places, preceded by a  or  sign (indicating if it's positive or negative), right justified, and left-padded with underscores so that the printed result is exactly  characters wide.
3. : Print it to a scale of exactly nine decimal places, expressed in scientific notation using upper case.

Solution-

#include <iostream>

#include <iomanip> 

using namespace std;

int main() {

    int T; cin >> T;

    cout << setiosflags(ios::uppercase);

    cout << setw(0xf) << internal;

    while(T--) {

        double A; cin >> A;

        double B; cin >> B;

        double C; cin >> C;

        cout << hex << showbase << nouppercase<<left;

        cout << (long long)A << endl;

        cout << setw(15) << showpos << setfill('_') << setprecision(2)<<fixed<<right;

        cout << B << endl;

        cout << scientific << setw(15) << setprecision(9) << uppercase<<noshowpos;

        cout << C << endl;

    }

    return 0;

}

Link to the problem-

https://www.hackerrank.com/challenges/prettyprint/problem

Result!