Объяснение:
Дано: 167₁₀
167 |_2_
- 166 | 83 |_2_
- 82 | 41 |_2_
1 - 40 | 20 |_2_
1 - 20 | 10 |_2_
1 - 10 | 5 |_2_
0 - 4 | 2 |_2_
0 - 2 | 1 |
1
0
167₁₀=10100111₂
Дано: 45₁₀
45 |_2_
- 44 | 22 |_2_
- 22 | 11 |_2_
1 - 10 | 5 |_2_
0 - 4 | 2 |_2_
1 -2 | 1
1
0
45₁₀=101101₂
using System;
class Program
{
static void Main()
{
int x1 = 2, y1 = 1;
int x2 = 6, y2 = 5;
int x3 = 10, y3 = 1;
var a = Distance(x2, y2, x3, y3);
var b = Distance(x1, y1, x3, y3);
var c = Distance(x2, y2, x1, y1);
Console.WriteLine("S = {0}", Square(a, b, c));
Console.ReadKey();
}
//растояние между точками
static double Distance(int x1, int y1, int x2, int y2)
{
return Math.Sqrt((x2 - x1) * (x2 - x1) + (y2 - y1) * (y2 - y1));
}
//формула герона
static double Square(double a, double b, double c)
{
var p = (a + b + c) / 2;
return Math.Sqrt(p * (p - a) * (p - b) * (p - c));
}
// теорема косинусов
static double Angle(double a, double b, double c)
{
return Math.Acos((b * b + c * c - a * a) / (2 * b * c));
}
static bool IsAcuteAngel(double alpha)
{
return alpha < Math.PI / 2;
}
}