3sum

#include
#include
#include

using namespace std;
//3sum

class Solution {
public:
    vector> threeSum(vector& nums) {
        unordered_map> record;
        vector aux;
        vector> ret;
        vector res;

        for(int i=0;i vec(nums,nums+sizeof(nums)/sizeof(int));


        vector> output=Solution().threeSum(vec);
        for(int i=0;i

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