Commit 9430a95

authored

feat: add swift implementation to lcp problem: No.28 (#3775)

1 parent 038e542 commit 9430a95Copy full SHA for 9430a95

File tree

+45

-0

lines changed

+45

-0

lines changed

Lines changed: 25 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -123,6 +123,31 @@ func purchasePlans(nums []int, target int) int {`
`123`	`123`	`}`
`124`	`124`	```
`125`	`125`
	`126`	`+#### Swift`
	`127`	`+`
	`128`	+```swift
	`129`	`+class Solution {`
	`130`	`+ func purchasePlans(_ nums: [Int], _ target: Int) -> Int {`
	`131`	`+ let mod = 1_000_000_007`
	`132`	`+ let nums = nums.sorted()`
	`133`	`+ var res = 0`
	`134`	`+ var i = 0`
	`135`	`+ var j = nums.count - 1`
	`136`	`+`
	`137`	`+ while i < j {`
	`138`	`+ if nums[i] + nums[j] > target {`
	`139`	`+ j -= 1`
	`140`	`+ } else {`
	`141`	`+ res = (res + j - i) % mod`
	`142`	`+ i += 1`
	`143`	`+ }`
	`144`	`+ }`
	`145`	`+`
	`146`	`+ return res`
	`147`	`+ }`
	`148`	`+}`
	`149`	+```
	`150`	`+`
`126`	`151`	`<!-- tabs:end -->`
`127`	`152`
`128`	`153`	`<!-- solution:end -->`

Lines changed: 20 additions & 0 deletions

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,20 @@`
	`1`	`+class Solution {`
	`2`	`+ func purchasePlans(_ nums: [Int], _ target: Int) -> Int {`
	`3`	`+ let mod = 1_000_000_007`
	`4`	`+ let nums = nums.sorted()`
	`5`	`+ var res = 0`
	`6`	`+ var i = 0`
	`7`	`+ var j = nums.count - 1`
	`8`	`+`
	`9`	`+ while i < j {`
	`10`	`+ if nums[i] + nums[j] > target {`
	`11`	`+ j -= 1`
	`12`	`+ } else {`
	`13`	`+ res = (res + j - i) % mod`
	`14`	`+ i += 1`
	`15`	`+ }`
	`16`	`+ }`
	`17`	`+`
	`18`	`+ return res`
	`19`	`+ }`
	`20`	`+}`

Comments

(0)