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Leetcode121.cpp
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63 lines (55 loc) · 1.77 KB
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// Leetcode121.cpp : This file contains the 'main' function. Program execution begins and ends there.
//
#include <iostream>
int maxProfit(vector<int>& prices) {
int profit = 0;
int buyDay = -1;
int sellDay = -1;
for (int i = 0; i < prices.size(); ++i)
{
if (buyDay == -1)
buyDay = i;
else
{
if (prices[i] < prices[buyDay])
{
if (sellDay != -1)
profit = max(profit, prices[sellDay] - prices[buyDay]);
buyDay = i;
sellDay = -1;
}
else if (sellDay == -1 || prices[i] > prices[sellDay])
sellDay = i;
}
}
if (sellDay != -1) profit = max(profit, prices[sellDay] - prices[buyDay]);
return profit;
}
int maxProfit(vector<int>& prices) {
int lsf = INT_MAX;
int op = 0;
int pist = 0;
for (int i = 0; i < prices.size(); i++) {
if (prices[i] < lsf) {
lsf = prices[i];
}
pist = prices[i] - lsf;
if (op < pist) {
op = pist;
}
}
return op;
}
int main()
{
std::cout << "Hello World!\n";
}
// Run program: Ctrl + F5 or Debug > Start Without Debugging menu
// Debug program: F5 or Debug > Start Debugging menu
// Tips for Getting Started:
// 1. Use the Solution Explorer window to add/manage files
// 2. Use the Team Explorer window to connect to source control
// 3. Use the Output window to see build output and other messages
// 4. Use the Error List window to view errors
// 5. Go to Project > Add New Item to create new code files, or Project > Add Existing Item to add existing code files to the project
// 6. In the future, to open this project again, go to File > Open > Project and select the .sln file