# BrainScanner 4.0

 Author _RV_ Submission date 2011-05-25 17:41:05.845231 Rating 7111 Matches played 7427 Win rate 61.69

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

## Source code:

``````import math,random
#This program detects brain waves through your computer screen to determine how you think and what kind of #program you would write.
memory=4
if (input=='R' and output=='P') or (input=='P' and output=='S') or (input=='S' and output=='R'):
print("Match won!")
try:
wcount+=1
print(str(wcount)+ " wins")
print(str(lcount)+ " losses")
except NameError:
wcount=0
else:
print("Lost!")
try:
lcount+=1
print(str(wcount)+ " wins")
print(str(lcount)+ " losses")
except NameError:
lcount=0
try:
count+=2
except NameError:
count=0
try:
hist+=input
except NameError:
hist=""
hist+=input
try:
prev['ABCDE']=0
except NameError:
prev=dict()
l=len(hist)
if l>=memory+2:
word=str(hist[l-memory-2])
for i in range(-memory-1,-2):
word=word+str(hist[l+i])
if not word in prev:
prev[word]=dict()
if hist[l-1] in prev[word]:
prev[word][hist[l-1]]+=1
else:
prev[word][hist[l-1]]=1
else:
if count<100:
output = random.choice(["R","P","S"])
else:
guess=str(hist[l-memory])
for i in range(-memory+1,0):
guess=guess+str(hist[l+i])

if guess in prev:
predict=max(prev[guess], key = lambda x: prev[guess].get(x) )
output={'R':'P', 'P':'S', 'S':'R'}[predict]
print("Guessing "+guess+" will be "+output)
else:
print("Never seen this before! Choosing random...")
output=random.choice(["R","P","S"])
hist+=output``````