Обсуждение @ 1750. Пахом и овраг @ Timus Online Judge

ASK hint [1] // Задача 1750. Пахом и овраг 11 апр 2018 21:31

Check: SBT; SAT, SABT, SBAT, SACT; the same four with swapped A and C

33
1 2 5 6 4 4 5 2 1 6
2 2 4 3 1 3 3 3 3 1
2 1 4 4 3 2 4 3 1 4
1 1 3 3 0 2 2 2 2 0
2 2 6 1 -1 1 5 6 5 0
2 2 0 3 -1 1 5 6 5 0
2 2 -4 0 -1 1 5 6 5 0
2 2 6 7 -1 1 5 6 5 0
2 2 5 7 -1 1 4 6 5 0
1 1 6 6 2 2 3 3 4 4
1 1 6 6 2 4 3 3 4 2
1 1 2 2 -1 -1 -1 -2 -2 -1
1 1 3 3 4 6 2 2 6 4
1 1 3 3 4 6 1 2 6 4
1 1 3 3 4 6 1 2 7 4
1 1 2 2 1 3 3 3 3 1
1 1 1 5 0 8 1 2 3 2
5 2 3 5 -1 2 4 5 6 3
4 1 5 5 2 3 6 4 5 2
1 1 7 5 2 3 6 4 5 2
1 1 3 3 2 4 2 2 4 2
6 1 6 4 0 5 7 2 6 5
2 2 4 2 2 1 3 6 4 1
4 2 2 2 2 1 3 6 4 1
8 7 1 3 6 1 7 4 0 9
5 1 2 2 2 1 4 1 8 9
9 -1 3 1 0 0 7 0 3 3
1 -1 6 7 0 0 7 0 3 3
0 0 8 0 2 0 4 0 6 0
1 1 4 4 0 3 3 3 3 0
0 0 0 4 2 1 0 2 2 3
0 0 0 4 0 2 2 2 3 2
1 1 5 2 1 2 5 1 0 3

8.000000
3.650282
3.828427
4.576491
5.019765
5.398346
6.324555
10.676619
10.605551
7.071068
7.634414
1.414214
8.993230
8.993230
9.162278
1.414214
5.841619
5.242641
5.064495
7.621233
4.576491
5.576491
4.000000
4.000000
11.709720
4.000000
9.211103
10.633758
8.000000
6.359174
4.000000
4.000000
5.000000

ASK plot with Python 3 // Задача 1750. Пахом и овраг 11 апр 2018 21:33

from matplotlib.pyplot import *
from math import *
inp='4 2 2 2 2 1 3 6 4 1'
sx,sy,tx,ty,ax,ay,bx,by,cx,cy = [float(i) for i in inp.split()]
plot(sx,sy,'go')
plot(tx,ty,'ro')
plot([ax,bx,cx],[ay,by,cy],'bo-')
def l(ax,ay,bx,by):
    plot([ax,bx],[ay,by], '--',
         label=str(sqrt((ax-bx)**2 + (ay-by)**2)))
def l2(ax,ay,bx,by,cx,cy):
    plot([ax,bx,cx],[ay,by,cy], '--',
         label=str(sqrt((ax-bx)**2 + (ay-by)**2) + sqrt((cx-bx)**2 + (cy-by)**2)))
def l3(ax,ay,bx,by,cx,cy,dx,dy):
    plot([ax,bx,cx,dx],[ay,by,cy,dy], '--',
         label=str(hypot(ax-bx,ay-by) + hypot(bx-cx,by-cy) + hypot(cx-dx,cy-dy)))
l(sx,sy,tx,ty)
l2(sx,sy,ax,ay,tx,ty)
l2(sx,sy,bx,by,tx,ty)
l2(sx,sy,cx,cy,tx,ty)
l3(sx,sy,bx,by,ax,ay,tx,ty)
l3(sx,sy,bx,by,cx,cy,tx,ty)
l3(sx,sy,ax,ay,cx,cy,tx,ty)
l3(sx,sy,cx,cy,ax,ay,tx,ty)

axis('equal'); grid(); legend(); show()

Обсуждение задачи 1750. Пахом и овраг