What I've done today is Longest Collatz sequence in Rust and Permutation Sequence in JavaScript.

What I've done today is Large sum in Rust and Subdomain Visit Count in JavaScript.

HAPPY NEW YEAR!

What I've done today is Highly divisible triangular number in Rust and Same Tree in JavaScript.

What I've done today is Largest product in a grid in Rust and Reveal Cards In Increasing Order in JavaScript.

What I've done today is Summation of primes in Rust and Best Time to Buy and Sell Stock with Transaction Fee in JavaScript.

What I've done today is Special Pythagorean triplet in Rust and Dota2 Senate in JavaScript.

What I've done today is Largest product in a series in Rust and Magical String in JavaScript.