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Create 0287-find-the-duplicate-number.rs #2627

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merged 1 commit into from
Jun 29, 2023
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Create 0287-find-the-duplicate-number.rs #2627

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create 0287-find-the-duplicate-number.rs
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@rmrt1n
rmrt1n committed Jun 23, 2023
commit 7264d28fdf689abbf45c3eb74d1051c3e3994fed
17 changes: 17 additions & 0 deletions rust/0287-find-the-duplicate-number.rs
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Original file line number Diff line number Diff line change
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impl Solution {
pub fn find_duplicate(nums: Vec<i32>) -> i32 {
let (mut slow, mut fast) = (nums[0], nums[nums[0] as usize]);
while slow != fast {
slow = nums[slow as usize];
fast = nums[nums[fast as usize] as usize];
}

slow = 0;
while slow != fast {
slow = nums[slow as usize];
fast = nums[fast as usize];
}

slow
}
}