LeetCode 3221: Maximum Array Hopping Score II Solution
Master LeetCode problem 3221 (Maximum Array Hopping Score II), a medium challenge, with our optimized solutions in Java, C++, and Python. Explore detailed explanations, test your code in our interactive editor, and prepare for coding interviews.
3221. Maximum Array Hopping Score II
Problem Explanation
Explanation:
The problem asks us to find the maximum score we can achieve by hopping through an array of integers. Each element in the array represents the maximum number of steps we can take from that position. However, we also have to consider that some positions may have negative scores.
To solve this problem, we can use dynamic programming. We will iterate through the array from right to left, keeping track of the maximum score we can achieve at each position. At each step, we consider two options: either we hop to the next position or skip it. We update our maximum score based on these two options.
Finally, the maximum score will be the value at the first position in the array.
: :
Solution Code
class Solution {
public int maxScore(int[] nums) {
int n = nums.length;
int[] dp = new int[n];
dp[n-1] = nums[n-1];
for (int i = n-2; i >= 0; i--) {
dp[i] = Math.max(nums[i] + (i+nums[i] < n ? dp[i+nums[i]] : 0), dp[i+1]);
}
return dp[0];
}
}Try It Yourself
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