From e912950729b789c68d73b332db3003638371f215 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Wed, 13 May 2020 16:12:01 +0800
Subject: import(solutions): Add problem 155.

---
 works/solutions/cpp/155.cpp | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 works/solutions/cpp/155.cpp

(limited to 'works/solutions/cpp/155.cpp')

diff --git a/works/solutions/cpp/155.cpp b/works/solutions/cpp/155.cpp
new file mode 100644
index 0000000..48550be
--- /dev/null
+++ b/works/solutions/cpp/155.cpp
@@ -0,0 +1,38 @@
+#include <vector>
+#include <set>
+
+class MinStack
+{
+public:
+    /** initialize your data structure here. */
+    MinStack()
+    {
+    }
+
+    void push(int x)
+    {
+        data_.push_back(x);
+        sorted_data_.insert(x);
+    }
+
+    void pop()
+    {
+        const auto v = data_.back();
+        data_.pop_back();
+        sorted_data_.erase(sorted_data_.find(v));
+    }
+
+    int top()
+    {
+        return data_.back();
+    }
+
+    int getMin()
+    {
+        return *sorted_data_.cbegin();
+    }
+
+private:
+    std::vector<int> data_;
+    std::multiset<int> sorted_data_;
+};
-- 
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