結果
| 問題 |
No.5020 Averaging
|
| コンテスト | |
| ユーザー |
uta
|
| 提出日時 | 2024-02-25 13:32:01 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 2,277 bytes |
| コンパイル時間 | 280 ms |
| コンパイル使用メモリ | 81,700 KB |
| 実行使用メモリ | 79,928 KB |
| スコア | 4,665,838 |
| 最終ジャッジ日時 | 2024-02-25 13:32:22 |
| 合計ジャッジ時間 | 7,356 ms |
|
ジャッジサーバーID (参考情報) |
judge12 / judge11 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 17 WA * 33 |
ソースコード
from dataclasses import dataclass, field
# from sortedcontainers import SortedList, SortedDict, SortedSet
from random import random, seed, randrange, choice, sample
# from itertools import permutations, combinations, product
from collections import deque, defaultdict, Counter
# from heapq import heapify, heappush, heappop
# from bisect import bisect_right, bisect_left
from time import time
import sys
sys.setrecursionlimit(1000000)
seed(0)
def input():
return sys.stdin.buffer.readline().rstrip().decode(encoding='utf-8')
try: isLocal
except: isLocal = False
if isLocal: input = line
def randrange_s(stop:int)->int: return int(random()*stop)
def randrange_ss(start:int, stop:int)->int: return int(random()*(stop-start)+start)
class AHC():
def __init__(self):
self.sTime = time()
self.get_input()
self.preprocessing()
def get_input(self):
self.N = int(input())
AB = [list(map(int, input().split())) for _ in range(self.N)]
self.A, self.B = [], []
for a, b in AB:
self.A.append(float(a))
self.B.append(float(b))
return
def preprocessing(self):
self.target = float(5*10**17)
return
def get_score(self):
return max(abs(self.target-self.A[0]), abs(self.target-self.B[0]))
def get_score2(self, a, b):
return max(abs(self.target-a), abs(self.target-b))
def greedy(self):
self.ans = []
self.cur = self.get_score()
for _ in range(50):
evaList = []
for i in range(1, self.N):
a = abs(self.target-(self.A[0]+self.A[i])/2)
b = abs(self.target-(self.B[0]+self.B[i])/2)
evaList.append([self.get_score2(a, b), i])
nxt, v = min(evaList)
if nxt>=self.cur: break
self.cur = nxt
self.ans.append(f"0 {v}")
mean = (self.A[0]+self.A[v])/2
self.A[0] = mean
self.A[v] = mean
mean = (self.B[0]+self.B[v])/2
self.B[0] = mean
self.B[v] = mean
return
def update(self):
pass
def output(self):
print(len(self.ans))
print("\n".join(self.ans))
ahc = AHC()
ahc.greedy()
ahc.output()
uta