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feat: add swift solutions to lc problem: No. 0137 #892
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yanglbme
requested changes
Feb 17, 2023
我尝试运行了一下,发现未通过,结果是标题取错了,这是 137 题 |
是 137题 思路和136一样 做题晕了 竟然给你添了这个麻烦 |
请问需要重新在PR的 还是等候您审查就可以了 这样的麽 |
不需要重新提 pr,直接 push 改动到这个分支就行 |
已经push 两份改动了REAMME 到分支上面了 谢谢您 (吐舌) |
原来是另外大大吖 方才都木有留意哩 |
yanglbme
approved these changes
Feb 17, 2023
这个解法可以再优化一下,遍历不要包含最后一个元素在内,可以省去一个判断: class Solution {
func singleNumber(_ nums: [Int]) -> Int {
var a = nums.sorted()
var n = a.count
for i in stride(from: 0, through: n - 2, by: 3) {
if a[i] != a[i + 1] {
return a[i]
}
}
return a[n - 1]
}
} 同理,136 也是如此: class Solution {
func singleNumber(_ nums: [Int]) -> Int {
var a = nums.sorted()
var n = a.count
for i in stride(from: 0, through: n - 2, by: 2) {
if a[i] != a[i + 1] {
return a[i]
}
}
return a[n - 1]
}
} |
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愿这次是作规范了 没有打搅到您。