結果
問題 | No.2517 Right Triangles on Circle |
ユーザー | StanMarsh |
提出日時 | 2023-10-27 22:03:36 |
言語 | PyPy3 (7.3.15) |
結果 |
WA
|
実行時間 | - |
コード長 | 6,664 bytes |
コンパイル時間 | 3,962 ms |
コンパイル使用メモリ | 81,668 KB |
実行使用メモリ | 179,020 KB |
最終ジャッジ日時 | 2023-10-27 22:03:57 |
合計ジャッジ時間 | 8,825 ms |
ジャッジサーバーID (参考情報) |
judge10 / judge15 |
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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 | 152 ms
89,500 KB |
testcase_01 | AC | 150 ms
89,504 KB |
testcase_02 | AC | 150 ms
89,504 KB |
testcase_03 | AC | 151 ms
89,500 KB |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | AC | 357 ms
178,044 KB |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | AC | 337 ms
166,416 KB |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | AC | 198 ms
98,732 KB |
testcase_23 | WA | - |
testcase_24 | WA | - |
testcase_25 | AC | 184 ms
107,892 KB |
testcase_26 | WA | - |
testcase_27 | AC | 173 ms
97,892 KB |
testcase_28 | WA | - |
testcase_29 | WA | - |
testcase_30 | WA | - |
testcase_31 | WA | - |
ソースコード
from random import getrandbits, randrange from string import ascii_lowercase, ascii_uppercase import sys from math import ceil, floor, sqrt, pi, factorial, gcd, log, log10, log2, inf, cos, sin from copy import deepcopy, copy from collections import Counter, deque, defaultdict from heapq import heapify, heappop, heappush from itertools import ( accumulate, product, combinations, combinations_with_replacement, permutations, ) from bisect import bisect, bisect_left, bisect_right from functools import lru_cache, reduce from decimal import Decimal, getcontext from typing import List, Tuple, Optional inf = float("inf") def ceil_div(a, b): return (a + b - 1) // b def isqrt(num): res = int(sqrt(num)) while res * res > num: res -= 1 while (res + 1) * (res + 1) <= num: res += 1 return res def int1(s): return int(s) - 1 from types import GeneratorType def bootstrap(f, stack=[]): def wrapped(*args, **kwargs): if stack: return f(*args, **kwargs) else: to = f(*args, **kwargs) while True: if type(to) is GeneratorType: stack.append(to) to = next(to) else: stack.pop() if not stack: break to = stack[-1].send(to) return to return wrapped import sys import os from io import BytesIO, IOBase BUFSIZE = 8192 class FastIO(IOBase): newlines = 0 def __init__(self, file): self._fd = file.fileno() self.buffer = BytesIO() self.writable = "x" in file.mode or "r" not in file.mode self.write = self.buffer.write if self.writable else None def read(self): while True: b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE)) if not b: break ptr = self.buffer.tell() self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr) self.newlines = 0 return self.buffer.read() def readline(self): while self.newlines == 0: b = os.read(self._fd, max(os.fstat(self._fd).st_size, BUFSIZE)) self.newlines = b.count(b"\n") + (not b) ptr = self.buffer.tell() self.buffer.seek(0, 2), self.buffer.write(b), self.buffer.seek(ptr) self.newlines -= 1 return self.buffer.readline() def flush(self): if self.writable: os.write(self._fd, self.buffer.getvalue()) self.buffer.truncate(0), self.buffer.seek(0) class IOWrapper(IOBase): def __init__(self, file): self.buffer = FastIO(file) self.flush = self.buffer.flush self.writable = self.buffer.writable self.write = lambda s: self.buffer.write(s.encode("ascii")) self.read = lambda: self.buffer.read().decode("ascii") self.readline = lambda: self.buffer.readline().decode("ascii") sys.stdin, sys.stdout = IOWrapper(sys.stdin), IOWrapper(sys.stdout) input = lambda: sys.stdin.readline().rstrip("\r\n") print = lambda *args, end="\n", sep=" ": sys.stdout.write( sep.join(map(str, args)) + end ) def II(): return int(input()) def MII(base=0): return map(lambda s: int(s) - base, input().split()) def LII(base=0): return list(MII(base)) def read_graph(n, m, base=0, directed=False, return_edges=False): g = [[] for _ in range(n)] edges = [] for _ in range(m): a, b = MII(base) if return_edges: edges.append((a, b)) g[a].append(b) if not directed: g[b].append(a) if return_edges: return g, edges return g def read_graph_with_weight(n, m, base=0, directed=False, return_edges=False): g = [[] for _ in range(n)] edges = [] for _ in range(m): a, b, w = MII() a, b = a - base, b - base if return_edges: edges.append((a, b, w)) g[a].append((b, w)) if not directed: g[b].append((a, w)) if return_edges: return g, edges return g def yes(res): print("Yes" if res else "No") def YES(res): print("YES" if res else "NO") def cmin(dp, i, x): if x < dp[i]: dp[i] = x def cmax(dp, i, x): if x > dp[i]: dp[i] = x def alp_a_to_i(s): return ord(s) - ord("a") def alp_A_to_i(s): return ord(s) - ord("A") def alp_i_to_a(i): return chr(ord("a") + i) def alp_i_to_A(i): return chr(ord("A") + i) d4 = [(1, 0), (0, 1), (-1, 0), (0, -1)] d8 = [(1, 0), (1, 1), (0, 1), (-1, 1), (-1, 0), (-1, -1), (0, -1), (1, -1)] def ranges(n, m): return ((i, j) for i in range(n) for j in range(m)) def valid(i, j, n, m): return 0 <= i < n and 0 <= j < m def ninj(i, j, n, m): return [(i + di, j + dj) for di, dj in d4 if valid(i + di, j + dj, n, m)] def gen(x, *args): if len(args) == 1: return [x] * args[0] if len(args) == 2: return [[x] * args[1] for _ in [0] * args[0]] if len(args) == 3: return [[[x] * args[2] for _ in [0] * args[1]] for _ in [0] * args[0]] if len(args) == 4: return [ [[[x] * args[3] for _ in [0] * args[2]] for _ in [0] * args[1]] for _ in [0] * args[0] ] list2d = lambda a, b, v: [[v] * b for _ in range(a)] list3d = lambda a, b, c, v: [[[v] * c for _ in range(b)] for _ in range(a)] class Debug: def __init__(self, debug=False): self.debug = debug cur_path = os.path.dirname(os.path.abspath(__file__)) self.local = os.path.exists(cur_path + "/.cph") def get_ic(self): if self.debug and self.local: from icecream import ic return ic else: return lambda *args, **kwargs: ... RANDOM = getrandbits(32) class Wrapper(int): def __init__(self, x): int.__init__(x) def __hash__(self): return super(Wrapper, self).__hash__() ^ RANDOM def pairwise(a): n = len(a) for i in range(n - 1): yield a[i], a[i + 1] def factorial(n): return reduce(lambda x, y: x * y, range(1, n + 1)) def iterate_tokens(): for line in sys.stdin: for word in line.split(): yield word tokens = iterate_tokens() ic = Debug(1).get_ic() n, m = int(next(tokens)), int(next(tokens)) a = [int(next(tokens)) for _ in range(n)] a.sort() if n % 2 == 1: print(0) exit() res = 0 s = set([Wrapper(ai) for ai in a]) n2 = n // 2 for ai in a: if ai > n2: break if Wrapper(ai + n2) in s: res += n - 2 print(res)