feat: 两数之和go实现

go_solutions/leetcode-go/array/easy_two_sum.go

@@ -0,0 +1,30 @@
+package main
+
+/*
+使用哈希表
+*/
+func twoSum(nums []int, target int) []int {
+	hashTable := map[int]int{}
+	for i, x := range nums {
+		if val, ok := hashTable[target-x]; ok {
+			return []int{val, i}
+		}
+		hashTable[x] = i
+	}
+	return nil
+}
+
+/*
+暴力枚举，首先遍历整个数组，之后再遍历后边的所有元素，如果两个元素相加的值为target，就返回这两个
+下标
+*/
+func f1(nums []int, target int) []int {
+	for i, x := range nums {
+		for j := i + 1; j < len(nums); j++ {
+			if x+nums[j] == target {
+				return []int{i, j}
+			}
+		}
+	}
+	return nil
+}