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The real bomb runs to lol9/10.\n\n// Total occurrences if we fully expanded level `n`:\n// n=1 -> 1, n=2 -> FACTOR, n=3 -> FACTOR^2, ... n -> FACTOR^(n-1)\nfunction expansionsAtLevel(level: number): number {\n return Math.pow(FACTOR, level - 1);\n}\n\nconsole.log(\"=== BOUNDED Billion-Laughs reproduction ===\");\nconsole.log(`Factor per level: ${FACTOR}. Max level allowed: ${MAX_LEVEL} (the classic bomb uses lol9 + lol10).\\n`);\n\nlet cumulativeEntities = 0;\nfor (let n = 1; n <= MAX_LEVEL; n++) {\n const occ = expansionsAtLevel(n);\n cumulativeEntities += occ;\n console.log(`lol${n} = &lol${n - 1} * ${FACTOR} -> ${occ.toLocaleString()} \\\"lol\\\" copies`);\n}\n\nconsole.log(`\\nUn-bounded: lol9 = 10^8 (~1 GB) and lol10 = 10^19 (crashes the parser).`);\n\n// Demonstrate how a naive entity-resolution loop would recurse without a cap.\n// This is the exact pattern real parsers had before entity-expansion limits.\nlet depth = 1;\nlet total = 1;\nconsole.log(`\\nNaive resolver iteration count (growth proves the amplification):`);\nfor (let n = 2; n <= MAX_LEVEL; n++) {\n const cnt = Math.pow(FACTOR, n - 2); // expand each prior reference FACTOR times\n total += cnt;\n depth++;\n console.log(` pass ${depth}: yes uses ${total.toLocaleString()} references so far`);\n}\n\nconsole.log(`\\nDemo complete. 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Diff · v13