#cal pi v2
from random import random 
from time import perf_counter
darts = 1000*100000
hits = 0.0
start = perf_counter()
for i in range(1,darts+1):
    x,y=random(),random()
    dist = pow(x ** 2 + y ** 2, 0.5)
    if dist <= 1.0:
        hits = hits +1
pi = 4 * (hits/darts)
print("the Pi is:{}".format(pi))
print("the running time is :{:.5f}s".format(perf_counter()-start))
