#1825Hard#5 in Capital One's list· asked at 12 companies
Subarrays with K Different Integers
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What we know
Example 1
Input: nums = [1,2,1,2,3], k = 2 Output: 7
[1,2], [2,1], [1,2], [2,3], [1,2,1], [2,1,2], [1,2,1,2].
Example 2
Input: nums = [1,2,1,3,4], k = 3 Output: 3
Constraints
- •
1 <= nums.length <= 2 * 10^4 - •
1 <= nums[i], k <= nums.length