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⚡️ Speed up method Algorithms.fibonacci by 15% #1423

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⚡️ Speed up method Algorithms.fibonacci by 15% #1423

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12 changes: 11 additions & 1 deletion code_to_optimize/java/src/main/java/com/example/Algorithms.java
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Original file line number Diff line number Diff line change
Expand Up @@ -18,7 +18,17 @@ public long fibonacci(int n) {
if (n <= 1) {
return n;
}
return fibonacci(n - 1) + fibonacci(n - 2);

long prev = 0;
long curr = 1;

for (int i = 2; i <= n; i++) {
long next = prev + curr;
prev = curr;
curr = next;
}

return curr;
}

/**
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