字母异位词分组 (groupAnagrams)

https://leetcode.cn/problems/group-anagrams

---

解法思路

Golang

package main

import (
	"fmt"
	"sort"
	"strings"
)

func main() {
	strs := []string{"eat", "tea", "tan", "ate", "nat", "bat"}

	results := groupAnagrams(strs)
	fmt.Println("results", results)
}

// 暴力求解
func groupAnagrams(strs []string) [][]string {
	hasMap := map[string][]string{}
	for _, v := range strs {
		splitStr := strings.Split(v, "")
		sort.Strings(splitStr)
		sortStr := strings.Join(splitStr, "")
		hasMap[sortStr] = append(hasMap[sortStr], v)
	}

	returnVal := [][]string{}

	for _, v := range hasMap {
		returnVal = append(returnVal, v)
	}

	return returnVal
}

JavaScript

var groupAnagrams = function (strs) {
  const hasMap = {};
  for (let i = 0; i < strs.length; i++) {
    const el = strs[i];
    let splitStr = el.split('');
    splitStr = splitStr.sort();
    let sortStr = splitStr.join('');

    if (hasMap[sortStr]) {
      hasMap[sortStr].push(el);
    } else {
      hasMap[sortStr] = [el];
    }
  }

  let returnVal = [];

  for (const key in hasMap) {
    if (Object.hasOwnProperty.call(hasMap, key)) {
      const el = hasMap[key];
      returnVal.push(el);
    }
  }

  return returnVal;
};
// 代码执行块
(function () {
  const strs = ['eat', 'tea', 'tan', 'ate', 'nat', 'bat'];

  const result = groupAnagrams(strs);
  console.log('result', result);
})();