docs: add new problem documentation pages and update redirects

apps/docs/redirects.ts

@@ -7,12 +7,14 @@ export default [
   { from: "/4", to: "/binary-search/median-of-two-sorted-arrays" },
   { from: "/11", to: "/two-pointers/container-with-most-water" },
   { from: "/15", to: "/two-pointers/3sum" },
+  { from: "/19", to: "/linked-list/remove-nth-node-from-end-of-list" },
   { from: "/20", to: "/stack/valid-parentheses" },
   { from: "/21", to: "/linked-list/merge-two-sorted-lists" },
   { from: "/23", to: "/heap-priority-queue/merge-k-sorted-lists" },
   { from: "/33", to: "/binary-search/search-in-rotated-sorted-array" },
   { from: "/34", to: "/binary-search/find-first-and-last-position-of-element-in-sorted-array" },
   { from: "/35", to: "/binary-search/search-insert-position" },
+  { from: "/36", to: "/matrix-index-math/valid-sudoku" },
   { from: "/39", to: "/backtracking/combination-sum" },
   { from: "/42", to: "/two-pointers/trapping-rain-water" },
   { from: "/46", to: "/backtracking/permutations" },
@@ -32,7 +34,9 @@ export default [
   { from: "/76", to: "/sliding-window/minimum-window-substring" },
   { from: "/78", to: "/backtracking/subsets" },
   { from: "/80", to: "/two-pointers/remove-duplicates-from-sorted-array-ii" },
+  { from: "/82", to: "/linked-list/remove-duplicates-from-sorted-list-ii" },
   { from: "/84", to: "/monotonic-stack/largest-rectangle-in-histogram" },
+  { from: "/92", to: "/linked-list/reverse-linked-list-ii" },
   { from: "/98", to: "/binary-search-tree/validate-binary-search-tree" },
   { from: "/102", to: "/tree-bfs/binary-tree-level-order-traversal" },
   { from: "/104", to: "/tree-dfs/maximum-depth-of-binary-tree" },
@@ -75,6 +79,7 @@ export default [
   { from: "/323", to: "/union-find/number-of-connected-components-in-an-undirected-graph" },
   { from: "/344", to: "/two-pointers/reverse-string" },
   { from: "/347", to: "/hash-table/top-k-frequent-elements" },
+  { from: "/380", to: "/hybrid-structures/insert-delete-getrandom-o1" },
   { from: "/387", to: "/hash-table/first-unique-character-in-a-string" },
   { from: "/392", to: "/two-pointers/is-subsequence" },
   { from: "/417", to: "/graph-dfs/pacific-atlantic-water-flow" },
@@ -91,6 +96,7 @@ export default [
   { from: "/739", to: "/monotonic-stack/daily-temperatures" },
   { from: "/853", to: "/monotonic-stack/car-fleet" },
   { from: "/875", to: "/binary-search/koko-eating-bananas" },
+  { from: "/876", to: "/linked-list/middle-of-the-linked-list" },
   { from: "/901", to: "/monotonic-stack/online-stock-span" },
   { from: "/973", to: "/heap-priority-queue/k-closest-points-to-origin" },
   { from: "/974", to: "/prefix-sum/subarray-sums-divisible-by-k" },