diff --git a/C++/BuyandSellStockII/buyandsell b/C++/BuyandSellStockII/buyandsell new file mode 100644 index 0000000..ecdf1b9 --- /dev/null +++ b/C++/BuyandSellStockII/buyandsell @@ -0,0 +1,53 @@ +// You are given an integer array prices where prices[i] is the price of a given stock on the ith day. + +// On each day, you may decide to buy and/or sell the stock. You can only hold at most one share of the stock at any time. However, you can buy it then immediately sell it on the same day. + +// Find and return the maximum profit you can achieve. + + + +// Example 1: + +// Input: prices = [7,1,5,3,6,4] +// Output: 7 +// Explanation: Buy on day 2 (price = 1) and sell on day 3 (price = 5), profit = 5-1 = 4. +// Then buy on day 4 (price = 3) and sell on day 5 (price = 6), profit = 6-3 = 3. +// Total profit is 4 + 3 = 7. +// Example 2: + +// Input: prices = [1,2,3,4,5] +// Output: 4 +// Explanation: Buy on day 1 (price = 1) and sell on day 5 (price = 5), profit = 5-1 = 4. +// Total profit is 4. +// Example 3: + +// Input: prices = [7,6,4,3,1] +// Output: 0 +// Explanation: There is no way to make a positive profit, so we never buy the stock to achieve the maximum profit of 0. + + +// Constraints: + +// 1 <= prices.length <= 3 * 104 +// 0 <= prices[i] <= 104 + + +# include +using namespace std; +class Solution { +public: + int maxProfit(vector& prices) { + + int max_profit=0; + + for(int i=1;iprices[i-1]){ + max_profit+=prices[i]-prices[i-1]; + } + + + } + return max_profit; + + } +}; \ No newline at end of file