def random(n, p):
#a = stdarray.create2D(n, n, False)
a = [[[False for k in range(n)] for col in range(n)] for row in range(n)]
for i in range(n):
for j in range(n):
for k in range(n):
a[i][j][k] = stdrandom.bernoulli(p)
return a
def random(n, p):
a = stdarray.create2D(n, n, False)
for i in range(n):
for j in range(n):
a[i][j] = stdrandom.bernoulli(p)
#方格的横线比竖线少一
for i in range(0, n, 2):
for j in range(int((n - 1) / 2), n):
a[i][j] = False
return a
def main():
n = int(sys.argv[1])
p = float(sys.argv[2])
heads = Counter("Heads", n)
tails = Counter("Tails", n)
for i in range(n):
if stdrandom.bernoulli(p):
heads.increment()
else:
tails.increment()
stdio.writeln(heads)
stdio.writeln(tails)
def main():
n = int(sys.argv[1])
p = float(sys.argv[2])
heads = Counter('Heads', n)
tails = Counter('Tails', n)
for i in range(n):
if stdrandom.bernoulli(p):
heads.increment()
else:
tails.increment()
stdio.writeln(heads)
stdio.writeln(tails)
def random(n, p):
a = stdarray.create2D(n, n, False)
for i in range(n):
for j in range(n):
a[i][j] = stdrandom.bernoulli(p)
return a
def binomial(n):
heads = 0
for i in range(n):
if stdrandom.bernoulli(0.5):
heads += 1
return heads
stake = int(sys.argv[1])
goal = int(sys.argv[2])
trials = int(sys.argv[3])
p = eval(sys.argv[4])
# Run trialCount experiments that start with stake and terminate on
# 0 or goal.
bets = 0
wins = 0
for t in range(trials):
# Run one experiment.
cash = stake
while cash > 0 and cash < goal:
# Simulate one bet.
bets += 1
if stdrandom.bernoulli(p):
cash += 1
else:
cash -= 1
if cash == goal:
wins += 1
stdio.writeln(str(100 * wins // trials) + '% wins')
stdio.writeln('Avg # bets: ' + str(bets // trials))
#-----------------------------------------------------------------------
# python gambler.py 10 20 1000
# 49% wins
# Avg # bets: 99
def random(n, p):
a = stdarray.create2D(n, n, False)
for i in range(n):
for j in range(n):
a[i][j] = stdrandom.bernoulli(p)
return a