9-И-2 ex.6

# -*- coding: utf-8 -*-
"""
Created on Sat Nov 21 17:27:04 2020

@author: Sergey
"""

import math


x1_1, y1_1 = int(input()), int(input())
x1_2, y1_2 = int(input()), int(input())
x2_1, y2_1 = int(input()), int(input())
x2_2, y2_2 = int(input()), int(input())
data=[[x1_1, y1_1], [x1_2, y1_2], [x2_1, y2_1], [x2_2, y2_2]]
data1=[]
for i in range(3):
    for j in range(i+1, 4):
        a=data[i]
        b=data[j]
        x1=a[0]
        y1=a[1]
        x2=b[0]
        y2=b[1]
        s= math.sqrt(((x2-x1)**2) + ((y2-y1)**2))
        data1.append(s)
print(data1)
c=max(data1)
d=data1.index(c)
data1.pop(d)
data1.insert(d, 0)
c1=max(data1)
d1=data1.index(c1)
data1.pop(d1)
data1.insert(d1, 0)
print('data1', data1)
print(c)
print(c1)
if (c>data1[0]) and (c1>data1[0]) and (c>data1[1]) and (c1>data1[1]) and (c>data1[2]) (c1>data1[2]) and (c>data1[3]) and (c1>data1[3]) and (c>data1[4]) and (c1>data1[4]) and (c>data1[5]) and (c1>data1[5]):
    if d==0:
        x1_1, y1_1=data[0][0], data[0][1]
        x1_2, y1_2=data[1][0], data[1][1]
    elif d==1:
        x1_1, y1_1=data[0][0], data[0][1]
        x1_2, y1_2=data[2][0], data[2][1]
    elif d==2:
        x1_1, y1_1=data[0][0], data[0][1]
        x1_2, y1_2=data[3][0], data[3][1]
    elif d==3:
        x1_1, y1_1=data[1][0], data[1][1]
        x1_2, y1_2=data[2][0], data[2][1]
    elif d==4:
        x1_1, y1_1=data[1][0], data[1][1]
        x1_2, y1_2=data[3][0], data[3][1]
    elif d==5:
        x1_1, y1_1=data[2][0], data[2][1]
        x1_2, y1_2=data[3][0], data[3][1]
    if d1==0:
        x1_1, y1_1=data[0][0], data[0][1]
        x1_2, y1_2=data[1][0], data[1][1]
    elif d1==1:
        x1_1, y1_1=data[0][0], data[0][1]
        x1_2, y1_2=data[2][0], data[2][1]
    elif d1==2:
        x1_1, y1_1=data[0][0], data[0][1]
        x1_2, y1_2=data[3][0], data[3][1]
    elif d1==3:
        x1_1, y1_1=data[1][0], data[1][1]
        x1_2, y1_2=data[2][0], data[2][1]
    elif d1==4:
        x1_1, y1_1=data[1][0], data[1][1]
        x1_2, y1_2=data[3][0], data[3][1]
    elif d1==5:
        x1_1, y1_1=data[2][0], data[2][1]
        x1_2, y1_2=data[3][0], data[3][1]


    A1 = y1_1 - y1_2
    B1 = x1_2 - x1_1
    C1 = x1_1*y1_2 - x1_2*y1_1
    A2 = y2_1 - y2_2
    B2 = x2_2 - x2_1
    C2 = x2_1*y2_2 - x2_2*y2_1
    if B1*A2 - B2*A1 != 0:
        y = (C2*A1 - C1*A2) / (B1*A2 - B2*A1)
        x = (-C1 - B1*y) / A1
        if min(x1_1, x1_2) <= x <= max(x1_1, x1_2) and  \
                                min(y1_1, y1_2) <= y <= max(y1_1, y1_2):
            print('Да')
        else:
            print('Нет')
else:
    print('Нет')