{ "data": { "question": { "questionId": "2199", "questionFrontendId": "2078", "boundTopicId": null, "title": "Two Furthest Houses With Different Colors", "titleSlug": "two-furthest-houses-with-different-colors", "content": "
There are n
houses evenly lined up on the street, and each house is beautifully painted. You are given a 0-indexed integer array colors
of length n
, where colors[i]
represents the color of the ith
house.
Return the maximum distance between two houses with different colors.
\n\nThe distance between the ith
and jth
houses is abs(i - j)
, where abs(x)
is the absolute value of x
.
\n
Example 1:
\n\n\nInput: colors = [1,1,1,6,1,1,1]\nOutput: 3\nExplanation: In the above image, color 1 is blue, and color 6 is red.\nThe furthest two houses with different colors are house 0 and house 3.\nHouse 0 has color 1, and house 3 has color 6. The distance between them is abs(0 - 3) = 3.\nNote that houses 3 and 6 can also produce the optimal answer.\n\n\n
Example 2:
\n\n\nInput: colors = [1,8,3,8,3]\nOutput: 4\nExplanation: In the above image, color 1 is blue, color 8 is yellow, and color 3 is green.\nThe furthest two houses with different colors are house 0 and house 4.\nHouse 0 has color 1, and house 4 has color 3. The distance between them is abs(0 - 4) = 4.\n\n\n
Example 3:
\n\n\nInput: colors = [0,1]\nOutput: 1\nExplanation: The furthest two houses with different colors are house 0 and house 1.\nHouse 0 has color 0, and house 1 has color 1. The distance between them is abs(0 - 1) = 1.\n\n\n
\n
Constraints:
\n\nn == colors.length
2 <= n <= 100
0 <= colors[i] <= 100
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