Improved arrays

javadev · Mar 31, 2024 · 77bd502 · 77bd502
1 parent 6a500ee
commit 77bd502
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Showing 13 changed files with 14 additions and 38 deletions.
diff --git a/src/main/kotlin/g0901_1000/s0939_minimum_area_rectangle/Solution.kt b/src/main/kotlin/g0901_1000/s0939_minimum_area_rectangle/Solution.kt
@@ -3,7 +3,6 @@ package g0901_1000.s0939_minimum_area_rectangle
 // #Medium #Array #Hash_Table #Math #Sorting #Geometry
 // #2023_04_29_Time_461_ms_(100.00%)_Space_74.8_MB_(20.00%)
 
-import java.util.Arrays
 import kotlin.math.abs
 
 class Solution {
@@ -16,9 +15,7 @@ class Solution {
             map.putIfAbsent(p[0], HashSet())
             map.getValue(p[0]).add(p[1])
         }
-        Arrays.sort(
-            points
-        ) { a: IntArray, b: IntArray ->
+        points.sortWith { a: IntArray, b: IntArray ->
             if (a[0] == b[0]) Integer.compare(
                 a[1],
                 b[1]

diff --git a/src/main/kotlin/g0901_1000/s0956_tallest_billboard/Solution.kt b/src/main/kotlin/g0901_1000/s0956_tallest_billboard/Solution.kt
@@ -2,16 +2,14 @@ package g0901_1000.s0956_tallest_billboard
 
 // #Hard #Array #Dynamic_Programming #2023_05_03_Time_182_ms_(100.00%)_Space_49.8_MB_(100.00%)
 
-import java.util.Arrays
-
 class Solution {
     fun tallestBillboard(rods: IntArray): Int {
         var maxDiff = 0
         for (rod in rods) {
             maxDiff += rod
         }
         val dp = IntArray(maxDiff + 1)
-        Arrays.fill(dp, -1)
+        dp.fill(-1)
         dp[0] = 0
         for (l in rods) {
             val dpOld = IntArray(maxDiff + 1)

diff --git a/src/main/kotlin/g0901_1000/s0957_prison_cells_after_n_days/Solution.kt b/src/main/kotlin/g0901_1000/s0957_prison_cells_after_n_days/Solution.kt
@@ -3,8 +3,6 @@ package g0901_1000.s0957_prison_cells_after_n_days
 // #Medium #Array #Hash_Table #Math #Bit_Manipulation
 // #2023_05_03_Time_172_ms_(100.00%)_Space_36.2_MB_(50.00%)
 
-import java.util.Arrays
-
 @Suppress("NAME_SHADOWING")
 class Solution {
     fun prisonAfterNDays(cells: IntArray, n: Int): IntArray {
@@ -20,7 +18,7 @@ class Solution {
             day++
             n--
             val next = getNextDay(prev)
-            if (Arrays.equals(next, first)) {
+            if (next.contentEquals(first)) {
                 period = day - 1
                 n %= period
             }

diff --git a/src/main/kotlin/g1001_1100/s1024_video_stitching/Solution.kt b/src/main/kotlin/g1001_1100/s1024_video_stitching/Solution.kt
@@ -3,11 +3,9 @@ package g1001_1100.s1024_video_stitching
 // #Medium #Array #Dynamic_Programming #Greedy
 // #2023_05_22_Time_141_ms_(100.00%)_Space_34.8_MB_(100.00%)
 
-import java.util.Arrays
-
 class Solution {
     fun videoStitching(clips: Array<IntArray>, time: Int): Int {
-        Arrays.sort(clips) { a: IntArray, b: IntArray ->
+        clips.sortWith { a: IntArray, b: IntArray ->
             if (a[0] == b[0]
             ) a[1] - b[1] else a[0] - b[0]
         }

diff --git a/src/main/kotlin/g1001_1100/s1027_longest_arithmetic_subsequence/Solution.kt b/src/main/kotlin/g1001_1100/s1027_longest_arithmetic_subsequence/Solution.kt
@@ -3,8 +3,6 @@ package g1001_1100.s1027_longest_arithmetic_subsequence
 // #Medium #Array #Hash_Table #Dynamic_Programming #Binary_Search
 // #2023_05_23_Time_330_ms_(100.00%)_Space_101.4_MB_(16.67%)
 
-import java.util.Arrays
-
 class Solution {
     fun longestArithSeqLength(nums: IntArray): Int {
         val max = maxElement(nums)
@@ -13,7 +11,7 @@ class Solution {
         val n = nums.size
         val dp = Array(n) { IntArray(2 * diff + 2) }
         for (d in dp) {
-            Arrays.fill(d, 1)
+            d.fill(1)
         }
         var ans = 0
         for (i in 0 until n) {

diff --git a/src/main/kotlin/g1001_1100/s1029_two_city_scheduling/Solution.kt b/src/main/kotlin/g1001_1100/s1029_two_city_scheduling/Solution.kt
@@ -2,11 +2,9 @@ package g1001_1100.s1029_two_city_scheduling
 
 // #Medium #Array #Sorting #Greedy #2023_05_24_Time_148_ms_(100.00%)_Space_35.4_MB_(92.31%)
 
-import java.util.Arrays
-
 class Solution {
     fun twoCitySchedCost(costs: Array<IntArray>): Int {
-        Arrays.sort(costs) { a: IntArray, b: IntArray ->
+        costs.sortWith { a: IntArray, b: IntArray ->
             a[0] - a[1] - (b[0] - b[1])
         }
         var cost = 0

diff --git a/src/main/kotlin/g1001_1100/s1081_smallest_subsequence_of_distinct_characters/Solution.kt b/src/main/kotlin/g1001_1100/s1081_smallest_subsequence_of_distinct_characters/Solution.kt
@@ -3,7 +3,6 @@ package g1001_1100.s1081_smallest_subsequence_of_distinct_characters
 // #Medium #String #Greedy #Stack #Monotonic_Stack
 // #2023_06_02_Time_146_ms_(100.00%)_Space_34_MB_(100.00%)
 
-import java.util.Arrays
 import java.util.Deque
 import java.util.LinkedList
 
@@ -13,7 +12,7 @@ class Solution {
         val stk: Deque<Char> = LinkedList()
         val freq = IntArray(26)
         val exist = BooleanArray(26)
-        Arrays.fill(exist, false)
+        exist.fill(false)
         for (ch in s.toCharArray()) {
             freq[ch.code - 'a'.code]++
         }

diff --git a/src/main/kotlin/g1201_1300/s1235_maximum_profit_in_job_scheduling/Solution.kt b/src/main/kotlin/g1201_1300/s1235_maximum_profit_in_job_scheduling/Solution.kt
@@ -3,8 +3,6 @@ package g1201_1300.s1235_maximum_profit_in_job_scheduling
 // #Hard #Array #Dynamic_Programming #Sorting #Binary_Search
 // #2023_06_09_Time_370_ms_(100.00%)_Space_49.5_MB_(84.00%)
 
-import java.util.Arrays
-
 class Solution {
     fun jobScheduling(startTime: IntArray, endTime: IntArray, profit: IntArray): Int {
         val n = startTime.size
@@ -14,7 +12,7 @@ class Solution {
             time[i][1] = endTime[i]
             time[i][2] = profit[i]
         }
-        Arrays.sort(time, { a: IntArray, b: IntArray -> a[1].compareTo(b[1]) })
+        time.sortWith { a: IntArray, b: IntArray -> a[1].compareTo(b[1]) }
         val maxP = Array(n) { IntArray(2) }
         var lastPos = -1
         var currProfit: Int

diff --git a/src/main/kotlin/g1301_1400/s1353_maximum_number_of_events_that_can_be_attended/Solution.kt b/src/main/kotlin/g1301_1400/s1353_maximum_number_of_events_that_can_be_attended/Solution.kt
@@ -3,12 +3,11 @@ package g1301_1400.s1353_maximum_number_of_events_that_can_be_attended
 // #Medium #Array #Greedy #Heap_Priority_Queue
 // #2023_06_06_Time_728_ms_(100.00%)_Space_103.1_MB_(80.00%)
 
-import java.util.Arrays
 import java.util.PriorityQueue
 
 class Solution {
     fun maxEvents(events: Array<IntArray>): Int {
-        Arrays.sort(events) { a: IntArray, b: IntArray -> a[0] - b[0] }
+        events.sortWith { a: IntArray, b: IntArray -> a[0] - b[0] }
         var ans = 0
         var i = 0
         val pq = PriorityQueue<Int>()

diff --git a/src/main/kotlin/g1301_1400/s1366_rank_teams_by_votes/Solution.kt b/src/main/kotlin/g1301_1400/s1366_rank_teams_by_votes/Solution.kt
@@ -3,8 +3,6 @@ package g1301_1400.s1366_rank_teams_by_votes
 // #Medium #Array #String #Hash_Table #Sorting #Counting
 // #2023_06_06_Time_179_ms_(100.00%)_Space_36.9_MB_(93.33%)
 
-import java.util.Arrays
-
 class Solution {
     internal class Node(var c: Char) {
         var count = IntArray(26)
@@ -20,9 +18,8 @@ class Solution {
                 nodes[vote[i].code - 'A'.code]!!.count[i]++
             }
         }
-        Arrays.sort(
-            nodes
-        ) { o1: Node?, o2: Node? ->
+
+        nodes.sortWith sort@{ o1: Node?, o2: Node? ->
             for (i in 0..25) {
                 if (o1!!.count[i] != o2!!.count[i]) {
                     return@sort o2.count[i] - o1.count[i]

diff --git a/src/main/kotlin/g1301_1400/s1383_maximum_performance_of_a_team/Solution.kt b/src/main/kotlin/g1301_1400/s1383_maximum_performance_of_a_team/Solution.kt
@@ -3,7 +3,6 @@ package g1301_1400.s1383_maximum_performance_of_a_team
 // #Hard #Array #Sorting #Greedy #Heap_Priority_Queue
 // #2023_06_06_Time_427_ms_(100.00%)_Space_50.2_MB_(100.00%)
 
-import java.util.Arrays
 import java.util.PriorityQueue
 
 class Solution {
@@ -13,7 +12,7 @@ class Solution {
             engineers[i][0] = speed[i]
             engineers[i][1] = efficiency[i]
         }
-        Arrays.sort(engineers) { engineer1: IntArray, engineer2: IntArray -> engineer2[1] - engineer1[1] }
+        engineers.sortWith { engineer1: IntArray, engineer2: IntArray -> engineer2[1] - engineer1[1] }
         var speedSum: Long = 0
         var maximumPerformance: Long = 0
         val minHeap = PriorityQueue<Int>()

diff --git a/src/main/kotlin/g1301_1400/s1387_sort_integers_by_the_power_value/Solution.kt b/src/main/kotlin/g1301_1400/s1387_sort_integers_by_the_power_value/Solution.kt
@@ -3,8 +3,6 @@ package g1301_1400.s1387_sort_integers_by_the_power_value
 // #Medium #Dynamic_Programming #Sorting #Memoization
 // #2023_06_06_Time_370_ms_(100.00%)_Space_39.8_MB_(100.00%)
 
-import java.util.Arrays
-
 class Solution {
     private lateinit var cacheMap: MutableMap<Int, Int>
 
@@ -16,7 +14,7 @@ class Solution {
             arr[i][0] = lo + i
             arr[i][1] = getStepCount(lo + i)
         }
-        Arrays.sort(arr) { a: IntArray, b: IntArray -> a[1].compareTo(b[1]) }
+        arr.sortWith { a: IntArray, b: IntArray -> a[1].compareTo(b[1]) }
         return arr[k - 1][0]
     }
 

diff --git a/...1_1500/s1489_find_critical_and_pseudo_critical_edges_in_minimum_spanning_tree/Solution.kt b/...1_1500/s1489_find_critical_and_pseudo_critical_edges_in_minimum_spanning_tree/Solution.kt
@@ -3,7 +3,6 @@ package g1401_1500.s1489_find_critical_and_pseudo_critical_edges_in_minimum_span
 // #Hard #Sorting #Graph #Union_Find #Minimum_Spanning_Tree #Strongly_Connected_Component
 // #2023_06_13_Time_342_ms_(100.00%)_Space_39.1_MB_(100.00%)
 
-import java.util.Arrays
 import java.util.LinkedList
 
 class Solution {
@@ -25,7 +24,7 @@ class Solution {
             mst[i] = LinkedList()
         }
         val mstSet = BooleanArray(edges.size)
-        Arrays.sort(edges) { a: IntArray, b: IntArray ->
+        edges.sortWith { a: IntArray, b: IntArray ->
             Integer.compare(
                 a[2], b[2]
             )