Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Update 0001.两数之和.md #2882

Open
wants to merge 1 commit into
base: master
Choose a base branch
from
Open

Update 0001.两数之和.md #2882

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
13 changes: 6 additions & 7 deletions problems/0001.两数之和.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -287,17 +287,16 @@ func twoSum(nums []int, target int) []int {
```

```go
// 使用map方式解题，降低时间复杂度
func twoSum(nums []int, target int) []int {
m := make(map[int]int)
for index, val := range nums {
if preIndex, ok := m[target-val]; ok {
return []int{preIndex, index}
} else {
m[val] = index
for i, num := range nums {
complement := target - num
if index, found := m[complement]; found {
return []int{index, i}
}
m[num] = i
}
return []int{}
return nil // 返回空数组 nil 代替空切片
}
```

Expand Down