結果

問題 No.1999 Lattice Teleportation
ユーザー mkawa2mkawa2
提出日時 2022-07-02 14:09:23
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 783 ms / 2,000 ms
コード長 3,013 bytes
コンパイル時間 347 ms
コンパイル使用メモリ 87,268 KB
実行使用メモリ 113,760 KB
最終ジャッジ日時 2023-08-18 05:06:15
合計ジャッジ時間 14,572 ms
ジャッジサーバーID
（参考情報） 		judge13 / judge15
このコードへのチャレンジ（β）

テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 76 ms
71,972 KB
testcase_01 AC 78 ms
71,920 KB
testcase_02 AC 71 ms
71,328 KB
testcase_03 AC 75 ms
71,960 KB
testcase_04 AC 77 ms
71,748 KB
testcase_05 AC 105 ms
78,324 KB
testcase_06 AC 100 ms
77,552 KB
testcase_07 AC 88 ms
76,088 KB
testcase_08 AC 78 ms
71,880 KB
testcase_09 AC 73 ms
71,820 KB
testcase_10 AC 72 ms
72,036 KB
testcase_11 AC 106 ms
78,212 KB
testcase_12 AC 612 ms
108,392 KB
testcase_13 AC 776 ms
110,652 KB
testcase_14 AC 72 ms
71,608 KB
testcase_15 AC 772 ms
113,760 KB
testcase_16 AC 466 ms
96,308 KB
testcase_17 AC 709 ms
109,428 KB
testcase_18 AC 629 ms
102,076 KB
testcase_19 AC 658 ms
105,976 KB
testcase_20 AC 783 ms
113,360 KB
testcase_21 AC 783 ms
110,768 KB
testcase_22 AC 782 ms
113,524 KB
testcase_23 AC 158 ms
79,492 KB
testcase_24 AC 311 ms
89,316 KB
testcase_25 AC 632 ms
105,732 KB
testcase_26 AC 525 ms
100,752 KB
testcase_27 AC 460 ms
96,604 KB
testcase_28 AC 731 ms
111,796 KB
testcase_29 AC 387 ms
92,268 KB
testcase_30 AC 228 ms
83,592 KB
testcase_31 AC 201 ms
81,232 KB
testcase_32 AC 498 ms
98,784 KB
権限があれば一括ダウンロードができます

ソースコード

diff # 

import sys

# sys.setrecursionlimit(200005)
int1 = lambda x: int(x)-1
pDB = lambda *x: print(*x, end="\n", file=sys.stderr)
p2D = lambda x: print(*x, sep="\n", end="\n\n", file=sys.stderr)
def II(): return int(sys.stdin.readline())
def LI(): return list(map(int, sys.stdin.readline().split()))
def LLI(rows_number): return [LI() for _ in range(rows_number)]
def LI1(): return list(map(int1, sys.stdin.readline().split()))
def LLI1(rows_number): return [LI1() for _ in range(rows_number)]
def SI(): return sys.stdin.readline().rstrip()
dij = [(0, 1), (-1, 0), (0, -1), (1, 0)]
# dij = [(0, 1), (-1, 0), (0, -1), (1, 0), (1, 1), (1, -1), (-1, 1), (-1, -1)]
# inf = (1 << 63)-1
inf = (1 << 31)-1
md = 10**9+7
# md = 998244353

class Vector:
    def __init__(self, x, y, init_x=1, init_y=0):
        self.x = x
        self.y = y
        self.norm2 = x*x+y*y
        self.norm = self.norm2**0.5
        self.zone = 2
        if x == y == 0: self.zone = -1
        elif init_x*y-init_y*x > 0: self.zone = 1
        elif init_x*y-init_y*x < 0: self.zone = 3
        elif init_x*x+init_y*y > 0: self.zone = 0

    def __repr__(self):
        return "({},{})".format(self.x, self.y)

    def __eq__(self, other):
        if self.zone != other.zone: return False
        return self.outer(other) == 0

    def __lt__(self, other):
        if self.zone == other.zone: return self.outer(other) > 0
        return self.zone < other.zone

    def __add__(self, other): return Vector(self.x+other.x, self.y+other.y)

    def __sub__(self, other): return Vector(self.x-other.x, self.y-other.y)

    def __iadd__(self, other):
        self.x += other.x
        self.y += other.y
        return self

    def __isub__(self, other):
        self.x -= other.x
        self.y -= other.y
        return self

    def __neg__(self):
        return Vector(-self.x, -self.y)

    def __mul__(self, val):
        return Vector(val*self.x, val*self.y)

    __rmul__ = __mul__

    def __truediv__(self, val):
        assert val != 0
        return Vector(self.x/val, self.y/val)

    def dot(self, v): return self.x*v.x+self.y*v.y

    def outer(self, v): return self.x*v.y-self.y*v.x

    def rot90(self): return Vector(-self.y, self.x)

def area(polygon):
    res = 0
    for i in range(len(polygon)):
        [x1, y1], [x2, y2] = polygon[i-1], polygon[i]
        res += x1*y2-x2*y1
    return abs(res)

from math import gcd

n = II()
vv = []
for _ in range(n):
    a, b = LI()
    if a == 0 and b == 0: continue
    v = Vector(a, b)
    if v.zone > 1: v = -v
    vv.append(v)

if not vv:
    print(1)
    exit()

vv.sort()
# pDB(vv)
n = len(vv)

s = Vector(0, 0)
pre = [(0, 0)]
for i in range(n):
    s += vv[i]
    pre.append((s.x, s.y))

s = Vector(0, 0)
pos = []
for i in range(n-1, 0, -1):
    s += vv[i]
    pos.append((s.x, s.y))

xy = pre+pos[::-1]
# pDB(xy)

b = 0
for i in range(len(xy)):
    dx = xy[i-1][0]-xy[i][0]
    dy = xy[i-1][1]-xy[i][1]
    b += gcd(dx, dy)
s2 = area(xy)
# pDB(b,s2)

ans = (s2+b+2)//2%md
print(ans)
0