NeetCode #745LC-2218Hard2-D Dynamic Programming
← Back to All Problems#745 · #2218 · Maximum Value of K Coins From Piles(从栈中取出 K 个硬币的最大面值和)
📌 Problem Statement & Constraints
There are
piles of coins; piles[i][j] is the value of the j-th coin from the top of pile i. You take exactly k coins, and from any pile you may only take a prefix (the top coins). Return the maximum total value. Constraints: 1 <= piles.length <= 1000, 1 <= piles[i].length <= 1000, 1 <= k <= 2000, 1 <= piles[i][j] <= 10^5, and the total number of coins across all piles is at most 2000.🔒
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