# RPS_C

 Author TeleZ Submission date 2017-08-25 07:54:06.413490 Rating 6984 Matches played 330 Win rate 71.52

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

## Source code:

``````import random

kon={'RR':'1','RP':'2','RS':'3','PR':'4','PP':'5','PS':'6','SR':'7','SP':'8','SS':'9'}
d0s={'1':0,'2':0,'3':0,'4':1,'5':1,'6':1,'7':2,'8':2,'9':2}
d1s={'1':0,'2':1,'3':2,'4':0,'5':1,'6':2,'7':0,'8':1,'9':2}
k2i={'R':0,'P':1,'S':2}
i2k={0:'R',1:'P',2:'S'}

def mdl(N):
N%=3
if N<0:
N+=3
return N

if not input:
DNA=""
flag=[False]*2
hist=[[0]*3]*2
eval=[0]*3
subs=[0]*6
prin=[[0]*6]*3
meta=[0]*3
output=random.choice("RPS")
else:
for i in range(3):
j=prin[i].index(max(prin[i]))
if (j<3 and flag[0]) or (j>3 and flag[1]):
k=mdl(subs[j]-k2i[input])
if k==2:
meta[i]-=1
else:
meta[i]+=k
for j in range(6):
if (j<3 and flag[0]) or (j>3 and flag[1]):
prin[1][j]*=0.9
k=mdl(subs[j]-k2i[input])
if k==1:
for i in range(3):
prin[i][j]+=1
elif k==2:
for i in range(3):
if i<2:
prin[i][j]-=1
elif prin[i][j]<3:
prin[i][j]-=1.5
else:
prin[i][j]*=0.5
elif prin[2][j]<3:
prin[2][j]-=0.25
else:
prin[2][j]=0.75*prin[2][j]+0.5
DNA+=kon[input+output]
for i in range(2):
for j in range(3):
hist[i][j]=0
i=min(101,len(DNA))
j=-1
while i>1 and j<0:
i-=1
RNA=DNA[-i:]
j=DNA.find(RNA,0,-1)
while j>=0:
hist[0][d0s[DNA[i+j]]]+=1
hist[1][d1s[DNA[i+j]]]+=1
j=DNA.find(RNA,j+1,-1)
for i in range(2):
flag[i]=(hist[i][0]<>hist[i][1] or hist[i][1]<>hist[i][2])
if flag[i]:
for j in range(3):
eval[j]=hist[i][mdl(j-1)]-hist[i][mdl(j+1)]
k=eval.index(max(eval))
for j in range(3):
subs[3*i+j]=mdl(k-j+i)
i=meta.index(max(meta))
j=prin[i].index(max(prin[i]))
if (j<3 and flag[0]) or (j>3 and flag[1]):
output=i2k[subs[j]]
else:
output=random.choice("RPS")``````