Java 8 introduced Java developers to functional programming with lambda expressions. This Java release effectively notified developers that it’s no longer sufficient to think about Java programming ...
dp[0] = 0; // if there are no steps, we dont have to pay any fee dp[1] = fee[0]; // only one step, so we have to pay its fee // for 2 or 3 steps staircase, since we start from the first step so we ...