Question 1

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Numerics;

namespace Question1
{
    class Question1
    {
        static void Main()
        {
            int weight = int.Parse(Console.ReadLine());
            int height = int.Parse(Console.ReadLine());
            int age = int.Parse(Console.ReadLine());
            string gender = Console.ReadLine();
            int workouts = int.Parse(Console.ReadLine());

            double newWeight = weight / 2.2;
            double newHeight = height * 2.54;

            double maleBMR = (66.5 + (13.75 * newWeight) + (5.003 * newHeight) - (6.755 * age));

            double femaleBMR = (655 + (9.563 * newWeight) + (1.850 * newHeight) - (4.676 * age));

            double DCI = 0;

            if (gender == "m")
            {
                if (workouts == 0)
                {
                    DCI = (maleBMR * 1.2);

                    Console.WriteLine(Math.Floor(DCI));
                }
                if (workouts > 0 && workouts < 4)
                {
                    DCI = (maleBMR * 1.375);

                    Console.WriteLine(Math.Floor(DCI));
                }
                if (workouts > 3 && workouts < 7)
                {
                    DCI = (maleBMR * 1.55);

                    Console.WriteLine(Math.Floor(DCI));
                }
                if (workouts > 6 && workouts < 10)
                {
                    DCI = (maleBMR * 1.725);

                    Console.WriteLine(Math.Floor(DCI));
                }
                if (workouts > 9)
                {
                    DCI = (maleBMR * 1.9);

                    Console.WriteLine(Math.Floor(DCI));
                }
                if (workouts < 0 )
                {
                    DCI = (maleBMR * 1.2);

                    Console.WriteLine(Math.Floor(DCI));
                }
            }
            if (gender == "f")
            {
                if (workouts == 0)
                {
                    DCI = (femaleBMR * 1.2);

                    Console.WriteLine(Math.Floor(DCI));
                }
                if (workouts > 0 && workouts < 4)
                {
                    DCI = (femaleBMR * 1.375);

                    Console.WriteLine(Math.Floor(DCI));
                }
                if (workouts > 3 && workouts < 7)
                {
                    DCI = (femaleBMR * 1.55);

                    Console.WriteLine(Math.Floor(DCI));
                }
                if (workouts > 6 && workouts < 10)
                {
                    DCI = (femaleBMR * 1.725);

                    Console.WriteLine(Math.Floor(DCI));
                }
                if (workouts > 9)
                {
                    DCI = (femaleBMR * 1.9);

                    Console.WriteLine(Math.Floor(DCI));
                }
                if (workouts < 0 && femaleBMR < 0)
                {
                    DCI = ((femaleBMR * 1.2) );

                    Console.WriteLine(Math.Floor(DCI));

                }

            }


        }
    }
}