What I've done today is Reciprocal cycles in Rust and Open the Lock in JavaScript.

What I've done today is 1000-digit Fibonacci number in Rust and Best Time to Buy and Sell Stock IV in JavaScript.

What I've done today is Lexicographic permutations in Rust and Unique Binary Search Trees II in JavaScript.

What I've done today is Non-abundant sums in Rust and Word Ladder in JavaScript.

What I've done today is Names scores in Rust and Optimal Division in JavaScript.

What I've done today is Amicable number in Rust and Unique Morse Code Words in JavaScript.

What I've done today is Factorial digit sum in Rust and Minimum Window Substring in JavaScript.