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Add snail traversal algorithm and improve cache/memoize implementations #252

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Merged
myoshi2891 merged 4 commits into from
Feb 6, 2026
Merged

Add snail traversal algorithm and improve cache/memoize implementations #252

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c6868c6
feat: Snail Traversal の実装とドキュメントを追加
myoshi2891 Feb 5, 2026
d6c25cf
fix: Address code review feedback for Snail Traversal, Cache, and Mem…
myoshi2891 Feb 6, 2026
e4d2774
fix: Address round 2 code review feedback (Type scoping, SRI, Side ef…
myoshi2891 Feb 6, 2026
0d25517
fix: Address round 3 review feedback (Doc consistency, JSDoc)
myoshi2891 Feb 6, 2026
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7 changes: 5 additions & 2 deletions JavaScript/2622. Cache With Time Limit/Claude Code Sonnet 4.5/CacheWithTimeLimit_TS.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -291,14 +291,17 @@
" * 未期限切れキーの数を取得\n",
" * @returns アクティブなキーの数\n",
" * @complexity Time: O(n), Space: O(1)\n",
" * @remarks 副作用: 期限切れエントリを遅延削除する\n",
" */\n",
" count(): number {\n",
" const now = Date.now();\n",
" let count = 0;\n",
" \n",
" // 期限切れでないエントリのみカウント\n",
" for (const entry of this.cache.values()) {\n",
" if (entry.expiresAt > now) {\n",
" for (const [key, entry] of this.cache) {\n",
" if (entry.expiresAt <= now) {\n",
" this.cache.delete(key);\n",
" } else {\n",
" count++;\n",
" }\n",
" }\n",
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10 changes: 6 additions & 4 deletions JavaScript/2623. Memoize/Claude Code Sonnet 4.5/Memoize_TS.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -65,8 +65,9 @@
" const memoized: Fn = function (...args: number[]): number {\n",
" const key = args.join(\",\");\n",
"\n",
" if (cache.has(key)) {\n",
" return cache.get(key)!;\n",
" const cached = cache.get(key);\n",
" if (cached !== undefined) {\n",
" return cached;\n",
" }\n",
"\n",
" callCount += 1;\n",
Expand Down Expand Up @@ -141,8 +142,9 @@
" ? args[0]\n",
" : args[0] * 100001 + args[1];\n",
"\n",
" if (cache.has(key)) {\n",
" return cache.get(key)!;\n",
" const cached = cache.get(key);\n",
" if (cached !== undefined) {\n",
" return cached;\n",
" }\n",
"\n",
" callCount += 1;\n",
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