51. Jump Game

Given an integer array `nums`, where each element represents the maximum jump length from that position, determine if you can reach the last index starting from index 0. For example, given nums = [2,3,1,1,4], you can jump from index 0 to index 1 (jump 1 step), then from index 1 to the last index (jump 3 steps), so the answer is true. Given nums = [3,2,1,0,4], no matter what you do, you will always arrive at index 3 whose value is 0, so you can never reach the last index.