31 lines
578 B
Go
31 lines
578 B
Go
package main
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/*
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使用哈希表
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*/
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func twoSum(nums []int, target int) []int {
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hashTable := map[int]int{}
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for i, x := range nums {
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if val, ok := hashTable[target-x]; ok {
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return []int{val, i}
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}
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hashTable[x] = i
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}
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return nil
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}
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/*
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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
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下标
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*/
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func f1(nums []int, target int) []int {
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for i, x := range nums {
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for j := i + 1; j < len(nums); j++ {
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if x+nums[j] == target {
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return []int{i, j}
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}
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}
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}
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return nil
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}
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