This program has been disqualified.
Author | EbTech |
Submission date | 2011-07-08 16:53:07.838995 |
Rating | 7732 |
Matches played | 1564 |
Win rate | 75.19 |
# learn about Martian cuisine at http://www.codeforces.com/contest/77/problem/E
import random
if not input:
beat = {'R':'P','P':'S','S':'R'}
fusion = {'RP':'a','PS':'b','SR':'c','PR':'d','SP':'e','RS':'f','RR':'g','PP':'h','SS':'i'}
limits = [4,9,20,42]
moves = ["","",""]
numPredictors = 6*len(limits)*len(moves)
numMetapredictors = 6
predictors = [random.choice("RPS") for i in range(numPredictors)]
predictorscore = [2*random.random() for i in range(numPredictors)]
opponentscore = [2*random.random() for i in range(numPredictors)]
metapredictors = [random.choice("RPS") for i in range(numMetapredictors)]
metascore = [12,12,0,0,0,0]
threat = [0,0,0]
outcome = 0
length = 0
output = random.choice("RPS")
else:
oldoutcome = outcome
if (beat[input] == output):
outcome = 1
elif (input == beat[output]):
outcome = -1
else:
outcome = 0
threat[oldoutcome + 1] *= 0.96875
threat[oldoutcome + 1] -= 0.03125*outcome
for i in range(numPredictors):
predictorscore[i] *= 0.8
predictorscore[i] += (beat[input] == predictors[i])
predictorscore[i] -= (input == beat[predictors[i]])
opponentscore[i] *= 0.8
opponentscore[i] += (beat[output] == predictors[i])
opponentscore[i] -= (output == beat[predictors[i]])
if input == beat[predictors[i]] and random.random() < 0.3:
predictorscore[i] = 0
if output == beat[predictors[i]] and random.random() < 0.3:
opponentscore[i] = 0
for i in range(numMetapredictors):
metascore[i] *= 0.95
metascore[i] += (beat[input] == metapredictors[i])
metascore[i] -= (input == beat[metapredictors[i]])
if input == beat[metapredictors[i]] and random.random() < 0.2:
metascore[i] = 0
moves[0] += input
moves[1] += output
moves[2] += fusion[input+output]
length += 1
for z in range(3*len(limits)):
j = min(length-1, limits[z//3])
while not moves[z%3][length-j:length] in moves[z%3][0:length-1]:
j-=1
i = moves[z%3].rfind(moves[z%3][length-j:length], 0, length-1)
predictors[2 * z] = moves[0][i+j]
predictors[2*z+1] = moves[1][i+j]
for i in range(numPredictors/3, numPredictors):
predictors[i] = beat[predictors[i - numPredictors/3]]
metapredictors[0] = predictors[predictorscore.index(max(predictorscore))]
metapredictors[1] = beat[predictors[opponentscore.index(max(opponentscore))]]
for i in range(numMetapredictors/3, numMetapredictors):
metapredictors[i] = beat[metapredictors[i - numMetapredictors/3]]
if length < 6 or random.random() < 2*threat[outcome+1]+0.1:
output = random.choice("RPS")
else:
output = metapredictors[metascore.index(max(metascore))]