Leetcode 1953. Maximum Number of Weeks for Which You Can Work

Given milestone counts for projects and the rule you must do exactly one milestone per week without working the same project in consecutive weeks, compute the maximum number of weeks you can work. Key insight: if the largest project's milestones dominate, you can only interleave them with others, so the answer is min(total_milestones, 2*(total_milestones - max_milestones) + 1).