aboutsummaryrefslogtreecommitdiff
path: root/store/works/solutions/leetcode/cpp/122.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'store/works/solutions/leetcode/cpp/122.cpp')
-rw-r--r--store/works/solutions/leetcode/cpp/122.cpp28
1 files changed, 28 insertions, 0 deletions
diff --git a/store/works/solutions/leetcode/cpp/122.cpp b/store/works/solutions/leetcode/cpp/122.cpp
new file mode 100644
index 0000000..68cd278
--- /dev/null
+++ b/store/works/solutions/leetcode/cpp/122.cpp
@@ -0,0 +1,28 @@
+#include <vector>
+
+using std::vector;
+
+class Solution
+{
+public:
+ int maxProfit(vector<int> &prices)
+ {
+ if (prices.size() <= 1)
+ return 0;
+
+ int day_count = prices.size();
+
+ vector<vector<int>> dp(day_count, std::vector<int>(2));
+
+ dp[0][0] = 0;
+ dp[0][1] = -prices[0];
+
+ for (int i = 1; i < day_count; i++)
+ {
+ dp[i][0] = std::max(dp[i - 1][0], dp[i - 1][1] + prices[i]);
+ dp[i][1] = std::max(dp[i - 1][1], dp[i - 1][0] - prices[i]);
+ }
+
+ return dp[day_count - 1][0];
+ }
+};