https://labuladong.github.io/algo/di-er-zhan-a01c6/yong-dong--63ceb/yi-ge-fang-3b01b/

读完本文，你不仅学会了算法套路，还可以顺便解决如下题目：

LeetCode	力扣	难度
121. Best Time to Buy and Sell Stockopen in new window (opens new window)	121. 买卖股票的最佳时机open in new window (opens new window)	🟢
122. Best Time to Buy and Sell Stock IIopen in new window (opens new window)	122. 买卖股票的最佳时机 IIopen in new window (opens new window)	🟠
123. Best Time to Buy and Sell Stock IIIopen in new window (opens new window)	123. 买卖股票的最佳时机 IIIopen in new window (opens new window)	🔴
188. Best Time to Buy and Sell Stock IVopen in new window (opens new window)	188. 买卖股票的最佳时机 IVopen in new window (opens new window)	🔴
309. Best Time to Buy and Sell Stock with Cooldownopen in new window (opens new window)	309. 最佳买卖股票时机含冷冻期open in new window (opens new window)	🟠
714. Best Time to Buy and Sell Stock with Transaction Feeopen in new window (opens new window)	714. 买卖股票的最佳时机含手续费open in new window (opens new window)	🟠