dmab chain

 Author momo Submission date 2012-06-04 16:23:07.456919 Rating 7660 Matches played 484 Win rate 73.76

Use rpsrunner.py to play unranked matches on your computer.

Source code:

``````import random, math

def highest(v):
return random.choice([i for i in range(len(v)) if max(v) == v[i]])

def lowest(v):
return random.choice([i for i in range(len(v)) if min(v) == v[i]])

def best(c):
return highest([c[1]-c[2], c[2]-c[0], c[0]-c[1]])

if(1):
if (input == ""):
N = 1
states = ["R","S","P"]
st = [0,1,2]
sdic = {"R":0, "S":1, "P":2}
table = {}
res = [[0, 1, -1], [-1, 0, 1], [1, -1, 0]]
mem= 4
M = 1
delta = 0.01
lda = 15

state = [0]*(M*3)
yo = random.choice(st)
tu = random.choice(st)

pa = (yo, tu)
hi = [pa]
hit = states[yo]+states[tu]
prognosis = [random.choice(st) for i in range(M*3)]
choices = []
total = 0

times = [1,1,1]
reward = [0,0,0]
upperconf=[0,0,0]
m_=[0,0,0]
M_=[0,0,0]

else:
tu = sdic[input]
pa = (yo,tu)
hi += [pa] #length(hi) == N

r = res[yo][tu]
total = total + r
times[myprog] += 1.0
reward[myprog] += (res[yo][tu]+1)/2.0

upperconf = [(reward[i])/(times[i]) + math.sqrt((2.0*math.log(N))/times[i])  for i in range(M*3)]

i = myprog
m_[i] += reward[i]/times[i] + delta - (res[yo][tu]+1)/2.0
M_[i] = max([m_[i], M_[i]])
if (M_[i] > m_[i] + lda):
times = [1,1,1]
reward = [0,0,0]
upperconf=[0,0,0]
m_=[0,0,0]
M_=[0,0,0]

count = [[0,0,0],[0,0,0]]
if (N > mem + 1):

p = hi[N-mem-2:N-1]

s = hi[N-1]

key0 = p
for key in [key0, [(i[0],-1) for i in key0], [ (-1,i[1]) for i in key0]]:
k = tuple(key+[s])
if (k in table): table[k] += 1
else: table[k]= 1

p = hi[N-mem-1:N]
for y in st:
for t in st:
key0 = p
for key in [key0, [(i[0],-1) for i in key0], [ (-1,i[1]) for i in key0]]:
k = tuple(key+[(y,t)])
if (k in table):
z = table[k]
count[0][y] += z
count[1][t] += z

prognosis[0] = best([count[1][i] for i in st])

for j in range(1):
prognosis[j*3 + 1] = (prognosis[j*3] + 1) % 3
prognosis[j*3 + 2] = (prognosis[j*3+1] + 1) % 3

myprog = highest(upperconf)
yo = prognosis[myprog]

output = states[yo]

N = N + 1``````