Best Time to Buy and Sell Stock with Cooldown

 https://leetcode.com/problems/best-time-to-buy-and-sell-stock-with-cooldown/discuss/75924/Most-consistent-ways-of-dealing-with-the-series-of-stock-problems

 

class Solution {
public:
    int maxProfit(vector<int>& prices) {
        int n=prices.size();
        if(n<=1){
            return 0;
        }
        int A=0;
        int B=-prices[0];
        int C=0;
        for(int i=1;i<prices.size();i++){
            int temp=A;
            A=max(A,C);
            C=B+prices[i];
            B=max(B,temp-prices[i]);
        }
        return max(A,C);
    }
};