Three Summedium

package main

import (
	"fmt"
	"sort"
)

func threeSum(nums []int) [][]int {
	// TODO: find all unique triplets that sum to zero
	// Hint: sort, then two-pointer for each fixed element
	return nil
}

func main() {
	fmt.Println(threeSum([]int{-1, 0, 1, 2, -1, -4})) // [[-1 -1 2] [-1 0 1]]
	fmt.Println(threeSum([]int{0, 0, 0}))               // [[0 0 0]]
}