roma-dxunvrs
23 lines
593 B
Markdown
23 lines
593 B
Markdown
Leetcode #238 | #Medium | [[Префикс]]
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## Идея
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Префиксные и суффиксные произведения
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## [[Big-O]]
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- Время ```O(N)```
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- Память ```O(1)```
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## Код
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```Java
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class Solution {
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public int[] productExceptSelf(int[] nums) {
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int n = nums.length;
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int[] res = new int[n];
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res[0] = 1;
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for (int i = 1; i < n; i++) res[i] = res[i - 1] * nums[i - 1];
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int right = 1;
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for (int i = n - 1; i >= 0; i--) {
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res[i] *= right;
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right *= nums[i];
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}
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return res;
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}
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}
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``` |