On Sun, Dec 01, 2013 at 02:57:33PM +0530, Reuben wrote:
> I mean occurrence of 2 from numbers 1 to 100. The number could be the
> first digit or second digit in a two digit number..for e.g. In number 21 it
> appears as first digit. For number 92 it appears as second digit
The most efficient way is to use a bit of reasoning:
2, 12, 20 through 29, then 32, 42, 52 etc.
But if you have to do it computationally:
for i in range(1, 101):
print "2" in str(i)
--
Steven
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