Added an O(1) memory solution for the string rotation challenge #252
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| " matching_count, i2 = 0, 0\n", | ||
| "\n", | ||
| " # Increment i1 and wrap around if necessary\n", | ||
| " i1 += 1\n", |
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i1 += 1
if i1 == length:
i1 = 0can be replaced by:
i1 = (i1 + 1) % lengthwhich is a common idiom for wrap-around semantics in iteration.
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Added a solution that takes the same approach as the original method (
s2 in s1 + s1), but it compares the strings in place and requires constant additional memory.