LeetCode 349. Intersection of Two Arrays
Given two arrays, write a function to compute their intersection.
Example:
Given nums1 = [1, 2, 2, 1], nums2 = [2, 2], return [2].
Note:
- Each element in the result must be unique.
- The result can be in any order.
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class Solution {
public:
vector<int> intersection(vector<int>& nums1, vector<int>& nums2) {
map<int, int> map;
vector<int> ret;
for (auto &e : nums1)
map[e] = ;
for (auto &e : nums2)
{
if (map.find(e)!=map.end()&&map[e]==)
{
ret.push_back(e);
++map[e];
}
}
return ret;
}
};
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