From b802e83e435cb4cf23f13c699816dc2f77bf500c Mon Sep 17 00:00:00 2001 From: cezarbbb <105843128+cezarbbb@users.noreply.github.com> Date: Sat, 6 Aug 2022 18:27:34 +0800 Subject: [PATCH] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=200714.=E4=B9=B0=E5=8D=96?= =?UTF-8?q?=E8=82=A1=E7=A5=A8=E7=9A=84=E6=9C=80=E4=BD=B3=E6=97=B6=E6=9C=BA?= =?UTF-8?q?=E5=90=AB=E6=89=8B=E7=BB=AD=E8=B4=B9=EF=BC=88=E5=8A=A8=E6=80=81?= =?UTF-8?q?=E8=A7=84=E5=88=92=EF=BC=89=20Rust=E7=89=88=E6=9C=AC?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 添加 0714.买卖股票的最佳时机含手续费(动态规划) Rust版本 --- ...佳时机含手续费(动态规划).md | 38 +++++++++++++++++++ 1 file changed, 38 insertions(+) diff --git a/problems/0714.买卖股票的最佳时机含手续费(动态规划).md b/problems/0714.买卖股票的最佳时机含手续费(动态规划).md index 7734450e..5ae8c33b 100644 --- a/problems/0714.买卖股票的最佳时机含手续费(动态规划).md +++ b/problems/0714.买卖股票的最佳时机含手续费(动态规划).md @@ -221,8 +221,46 @@ function maxProfit(prices: number[], fee: number): number { }; ``` +Rust: +**贪心** +```Rust +impl Solution { + pub fn max_profit(prices: Vec, fee: i32) -> i32 { + let mut result = 0; + let mut min_price = prices[0]; + for i in 1..prices.len() { + if prices[i] < min_price { min_price = prices[i]; } + // if prices[i] >= min_price && prices[i] <= min_price + fee { continue; } + if prices[i] > min_price + fee { + result += prices[i] - min_price - fee; + min_price = prices[i] - fee; + } + } + result + } +} +``` + +**动态规划** +```Rust +impl Solution { + fn max(a: i32, b: i32) -> i32 { + if a > b { a } else { b } + } + pub fn max_profit(prices: Vec, fee: i32) -> i32 { + let n = prices.len(); + let mut dp = vec![vec![0; 2]; n]; + dp[0][0] -= prices[0]; + for i in 1..n { + dp[i][0] = Self::max(dp[i - 1][0], dp[i - 1][1] - prices[i]); + dp[i][1] = Self::max(dp[i - 1][1], dp[i - 1][0] + prices[i] - fee); + } + Self::max(dp[n - 1][0], dp[n - 1][1]) + } +} +``` -----------------------