There is no one algorithm. The game is a combination of luck and skill. It also has factors such as the number of players in a hand, and where your seating position is relative to the dealer.
All players are dealt 2 cards face down, followed by 5 cards face up. Players must make the best possible 5 card poker hand using the 5 community cards and their own face down hole cards. The best 5 card poker hand wins the hand and receives the pot.