Tiger's leetcode solution
Saturday, May 2, 2015
Digit Counts
Q:
Count the number of k's between 0 and n. k can be 0 - 9.
Example
if n=12, in
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12]
, we have
FIVE
1's
(1, 10, 11, 12)
A:
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