feat: add solutions to lc problem: No.0146

solution/0000-0099/0023.Merge k Sorted Lists/README.md

@@ -232,11 +232,7 @@ func (h *hp) Pop() any          { a := *h; v := a[len(a)-1]; *h = a[:len(a)-1];
 
 function mergeKLists(lists: Array<ListNode | null>): ListNode | null {
     const pq = new MinPriorityQueue({ priority: (node: ListNode) => node.val });
-    for (const head of lists) {
-        if (head) {
-            pq.enqueue(head);
-        }
-    }
+    lists.filter(head => head).forEach(head => pq.enqueue(head));
     const dummy: ListNode = new ListNode();
     let cur: ListNode = dummy;
     while (!pq.isEmpty()) {
@@ -318,11 +314,7 @@ impl Solution {
  */
 var mergeKLists = function (lists) {
     const pq = new MinPriorityQueue({ priority: node => node.val });
-    for (const head of lists) {
-        if (head) {
-            pq.enqueue(head);
-        }
-    }
+    lists.filter(head => head).forEach(head => pq.enqueue(head));
     const dummy = new ListNode();
     let cur = dummy;
     while (!pq.isEmpty()) {

solution/0000-0099/0023.Merge k Sorted Lists/README_EN.md

@@ -233,11 +233,7 @@ func (h *hp) Pop() any          { a := *h; v := a[len(a)-1]; *h = a[:len(a)-1];
 
 function mergeKLists(lists: Array<ListNode | null>): ListNode | null {
     const pq = new MinPriorityQueue({ priority: (node: ListNode) => node.val });
-    for (const head of lists) {
-        if (head) {
-            pq.enqueue(head);
-        }
-    }
+    lists.filter(head => head).forEach(head => pq.enqueue(head));
     const dummy: ListNode = new ListNode();
     let cur: ListNode = dummy;
     while (!pq.isEmpty()) {
@@ -319,11 +315,7 @@ impl Solution {
  */
 var mergeKLists = function (lists) {
     const pq = new MinPriorityQueue({ priority: node => node.val });
-    for (const head of lists) {
-        if (head) {
-            pq.enqueue(head);
-        }
-    }
+    lists.filter(head => head).forEach(head => pq.enqueue(head));
     const dummy = new ListNode();
     let cur = dummy;
     while (!pq.isEmpty()) {

solution/0000-0099/0023.Merge k Sorted Lists/Solution.js

@@ -11,11 +11,7 @@
  */
 var mergeKLists = function (lists) {
     const pq = new MinPriorityQueue({ priority: node => node.val });
-    for (const head of lists) {
-        if (head) {
-            pq.enqueue(head);
-        }
-    }
+    lists.filter(head => head).forEach(head => pq.enqueue(head));
     const dummy = new ListNode();
     let cur = dummy;
     while (!pq.isEmpty()) {

solution/0000-0099/0023.Merge k Sorted Lists/Solution.ts

@@ -12,11 +12,7 @@
 
 function mergeKLists(lists: Array<ListNode | null>): ListNode | null {
     const pq = new MinPriorityQueue({ priority: (node: ListNode) => node.val });
-    for (const head of lists) {
-        if (head) {
-            pq.enqueue(head);
-        }
-    }
+    lists.filter(head => head).forEach(head => pq.enqueue(head));
     const dummy: ListNode = new ListNode();
     let cur: ListNode = dummy;
     while (!pq.isEmpty()) {