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On 08-Dec-2011, at 6:47 AM, Do youknow who wrote:
> Im trying to write this program where i make it flip a coin 100 times then
> tells me the number of heads and tails it came up with.
>
> this is what I got but it does not run
>
> # Coin Flip
> # Demonstrating the While loop
> import random
> print("I will flip a coin 100 times and tell you")
> print(", how many heads and how many tails I got.")
> coin_rolls = random.randint(1,2)
> heads = 0
> tails = 0
> rolls = 0
>
> if rolls <= 100:
> rolls += 1
>
> elif coin_rolls == 1:
> heads += 1
> elif coin_rolls == 2:
> tails += 1
> else:
> print("error")
> print("There was ", heads, "rolls for heads,")
> print("\nand there was ", tails, " rolls for tails.")
> input("\n\nPress the enter key to exit.")
>
> I end up with 0 rolls for heads and 0 rolls for tails...I have made attempts
> to put the
> "coin_rolls = random.randint(1,2)" within the loops but only end up with
> errors
> what wrong with my code?
# head(h) --- even number
# tail(t) --- odd number
# roll(r) --- number of rolls
===
import random
r = 100
h = len([1 for x in range(r) if random.randint(1,1000) % 2])
t = r - h
print('There were %d rolls for head and %d rolls for tail.' % (h, t))
===
Little more pythonic way...
- --
शंतनू
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