結果

問題 No.5020 Averaging
ユーザー uuuus17uuuus17
提出日時 2024-02-25 16:07:56
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 882 ms / 1,000 ms
コード長 5,096 bytes
コンパイル時間 283 ms
コンパイル使用メモリ 81,828 KB
実行使用メモリ 187,356 KB
スコア 22,680,268
最終ジャッジ日時 2024-02-25 16:08:50
合計ジャッジ時間 46,455 ms
ジャッジサーバーID
(参考情報)
judge11 / judge10
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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 864 ms
138,272 KB
testcase_01 AC 859 ms
154,180 KB
testcase_02 AC 865 ms
165,916 KB
testcase_03 AC 875 ms
133,980 KB
testcase_04 AC 859 ms
135,008 KB
testcase_05 AC 858 ms
111,708 KB
testcase_06 AC 864 ms
106,608 KB
testcase_07 AC 857 ms
134,172 KB
testcase_08 AC 862 ms
187,356 KB
testcase_09 AC 857 ms
136,048 KB
testcase_10 AC 859 ms
125,360 KB
testcase_11 AC 866 ms
142,792 KB
testcase_12 AC 861 ms
140,372 KB
testcase_13 AC 858 ms
131,280 KB
testcase_14 AC 858 ms
133,724 KB
testcase_15 AC 864 ms
142,940 KB
testcase_16 AC 858 ms
133,860 KB
testcase_17 AC 882 ms
139,552 KB
testcase_18 AC 864 ms
146,028 KB
testcase_19 AC 859 ms
130,160 KB
testcase_20 AC 864 ms
136,272 KB
testcase_21 AC 859 ms
152,472 KB
testcase_22 AC 857 ms
123,068 KB
testcase_23 AC 860 ms
129,244 KB
testcase_24 AC 863 ms
144,092 KB
testcase_25 AC 867 ms
175,016 KB
testcase_26 AC 867 ms
141,332 KB
testcase_27 AC 870 ms
143,484 KB
testcase_28 AC 859 ms
131,528 KB
testcase_29 AC 863 ms
121,368 KB
testcase_30 AC 857 ms
129,660 KB
testcase_31 AC 865 ms
130,648 KB
testcase_32 AC 873 ms
177,808 KB
testcase_33 AC 862 ms
155,596 KB
testcase_34 AC 861 ms
124,392 KB
testcase_35 AC 861 ms
136,876 KB
testcase_36 AC 860 ms
136,536 KB
testcase_37 AC 866 ms
131,800 KB
testcase_38 AC 859 ms
135,916 KB
testcase_39 AC 861 ms
131,804 KB
testcase_40 AC 858 ms
136,248 KB
testcase_41 AC 863 ms
138,096 KB
testcase_42 AC 878 ms
134,876 KB
testcase_43 AC 859 ms
143,800 KB
testcase_44 AC 859 ms
143,204 KB
testcase_45 AC 857 ms
135,092 KB
testcase_46 AC 862 ms
138,716 KB
testcase_47 AC 862 ms
131,536 KB
testcase_48 AC 860 ms
146,932 KB
testcase_49 AC 860 ms
139,228 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
input = lambda: sys.stdin.readline().rstrip()
# sys.setrecursionlimit(10**7)
# sys.set_int_max_str_digits(10**6)
# import pypyjit
# pypyjit.set_param('max_unroll_recursion=-1')
def mp():return map(int,input().split())
def lmp():return list(map(int,input().split()))
def lm1(LIST): return list(map(lambda x:x-1, LIST))
def mps(A):return [tuple(map(int, input().split())) for _ in range(A)]
def stoi(LIST):return list(map(int,LIST))
def itos(LIST):return list(map(str,LIST))
def atoi(LIST): return [ord(i)-ord("a") for i in LIST]
def Atoi(LIST): return [ord(i)-ord("A") for i in LIST]
def LT(LIST,N): return LIST[bisect.bisect_left(LIST,N)-1]
def LE(LIST,N): return LIST[bisect.bisect_right(LIST,N)-1]
def GT(LIST,N): return LIST[bisect.bisect_right(LIST,N)]
def GE(LIST,N): return LIST[bisect.bisect_left(LIST,N)]
def bitA(X,A):return X & 1<<A == 1<<A
def gtoi(x,y,h,w):return x*w+y
import math
import bisect
import heapq
import time
import random as rd
import itertools
from copy import copy as cc
from copy import deepcopy as dc
from itertools import accumulate, product
from collections import Counter, defaultdict, deque
def ceil(U,V):return (U+V-1)//V
def modf1(N,MOD):return (N-1)%MOD+1
def printmat(list):
    for i in list:print(*i)
m4 = [[1,0],[0,1],[-1,0],[0,-1]]
m8 = [[-1,-1],[-1,0],[-1,1],[0,-1],[0,1],[1,-1],[1,0],[1,1]]
inf = (1<<63)-1
mod = 998244353

start_time = time.time()
n = int(input())
omote = []
ura = []
max_limit = 50
for i in range(n):
    a,b = mp()
    omote.append(a)
    ura.append(b)
width = 3
depth = 3

def output(sosa_arr):
    print(len(sosa_arr))
    for i,j in sosa_arr:print(i+1,j+1)

def calc_score(x,y):
    return max(abs(500000000000000000-x),abs(500000000000000000-y))

def calc_all_score(a,b,X):
    ErrorA = abs(500000000000000000 - a[0])
    ErrorB = abs(500000000000000000 - b[0])
    Score = (int)(2000000.0 - 100000.0 * math.log10(1.0 * max(ErrorA, ErrorB) + 1.0))
    if ErrorA == 0 and ErrorB == 0:
        Score = 2000050 - X
    return Score


def greedy(a,b):
    sosa = []
    for kaisu in range(max_limit):
        score = calc_score(a[0],b[0])
        choose_card = 0
        for i in range(1,n):
            na,nb = (a[0]+a[i])/2, (b[0]+b[i])/2
            now_score = calc_score(na,nb)
            if now_score < score:
                score = now_score
                choose_card = i
        a[0],b[0],a[choose_card],b[choose_card] = (a[0]+a[choose_card])/2, (b[0]+b[choose_card])/2,\
                                                  (a[0]+a[choose_card])/2, (b[0]+b[choose_card])/2
        if choose_card == 0:break
        sosa.append([0,choose_card])
    return a,b,sosa


def remove_huyou(A):
    while len(A) != 1:
        if A[-1] == A[-2]:A.pop()
        else:break
    return A


def hanei_0(Score,A,B,Sosa):
    choose_card = 0
    Score = calc_score(A[0],B[0])
    for i in range(1, n):
        na, nb = (A[0] + A[i]) / 2, (B[0] + B[i]) / 2
        now_score = calc_score(na, nb)
        if now_score < Score:
            Score = now_score
            choose_card = i
    A[0], B[0], A[choose_card], B[choose_card] = (A[0] + A[choose_card]) / 2, (B[0] + B[choose_card]) / 2, \
                                                 (A[0] + A[choose_card]) / 2, (B[0] + B[choose_card]) / 2
    if choose_card != 0:Sosa.append([0, choose_card])
    return [Score,A,B,Sosa]


def beam_search(a,b,sosa_Arr):
    koho = [[calc_score(a[0],b[0]), cc(a), cc(b), sosa_Arr]]  # 次stepで反映したときのscore,今のa,今のb,今の操作
    heapq.heapify(koho)
    best_score = calc_score(a[0],b[0])
    for dep in range(depth):
        now_koho = []
        while not (len(koho) == 0 or len(now_koho) == width):
            nxt = heapq.heappop(koho)
            if nxt[0] > best_score:break
            now_koho.append(nxt)
        koho.clear()
        best_score = now_koho[0][0]
        for Score,A,B,Sosa in now_koho:
            if len(Sosa) == max_limit:continue
            heapq.heappush(koho, dc([Score, A, B, Sosa]))
            for i in range(n):
                for j in range(i+1,n):
                    if Sosa and Sosa[-1] == [i,j]:continue
                    ac = cc(A)
                    bc = cc(B)
                    sosac = cc(Sosa)
                    na,nb = (a[i]+a[j])/2, (b[i]+b[j])/2
                    ac[i],ac[j],bc[i],bc[j] = na,na,nb,nb
                    hanei_a,hanei_b = (na+ac[0])/2, (nb+bc[0])/2
                    now_score = calc_score(hanei_a,hanei_b)
                    sosac.append([i,j])
                    if A == ac and B == bc:continue
                    heapq.heappush(koho,[now_score,ac,bc,sosac])
    best_koho = heapq.heappop(koho)
    best_koho[3] = remove_huyou(best_koho[3])
    best_koho = hanei_0(*best_koho)
    return best_koho


def main():
    sosa_arr = []
    global omote
    global ura
    while time.time()-start_time <= 0.8:
        pred_score,na,nb,sosa_arr = beam_search(omote,ura,sosa_arr)
        omote = na
        ura = nb
    output(sosa_arr)
    #print(calc_all_score(omote,ura,len(sosa_arr)))
    #na,nb,sosa_arr = greedy(omote,ura)

main()
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