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Leetcode Problem 350. Intersection of Two Arrays II
350. Intersection of Two Arrays II
AI Mock Interview
Leetcode Solutions
Approach: Hash Map
Solution Idea
Algorithm Steps
Code Implementation
Complexity Analysis
Initialize an empty hash map
m
.
Iterate over
nums1
, incrementing the count for each number in
m
.
Initialize an empty list
result
to store the intersection.
Iterate over
nums2
, and for each number: a. If the number is in
m
with a count greater than 0, append it to
result
and decrement the count in
m
.
Return the
result
list.
Approach: Sort and Two Pointers
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