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| author | crupest <crupest@outlook.com> | 2021-02-23 21:07:19 +0800 |
|---|---|---|
| committer | crupest <crupest@outlook.com> | 2021-02-23 21:07:19 +0800 |
| commit | e353213dfb73259a5d33cc6e9d5cd2373c683be9 (patch) | |
| tree | e879936e7e9c62f9946249cdeb470afeef1c1500 /works/solutions/leetcode/cpp/155-2.cpp | |
| parent | 7e3e89a3f0ecc49c33334f423dbde3a5fdc57abd (diff) | |
| download | crupest-e353213dfb73259a5d33cc6e9d5cd2373c683be9.tar.gz crupest-e353213dfb73259a5d33cc6e9d5cd2373c683be9.tar.bz2 crupest-e353213dfb73259a5d33cc6e9d5cd2373c683be9.zip | |
import(solutions): Move leetcode solutions to subdir.
Diffstat (limited to 'works/solutions/leetcode/cpp/155-2.cpp')
| -rw-r--r-- | works/solutions/leetcode/cpp/155-2.cpp | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/works/solutions/leetcode/cpp/155-2.cpp b/works/solutions/leetcode/cpp/155-2.cpp new file mode 100644 index 0000000..aa07eee --- /dev/null +++ b/works/solutions/leetcode/cpp/155-2.cpp @@ -0,0 +1,48 @@ +#include <vector>
+#include <algorithm>
+
+class MinStack
+{
+public:
+ /** initialize your data structure here. */
+ MinStack()
+ {
+ // Although I really think this is just a trick for this problem.
+ // Leetcode does not give the input size. So I just make a reasonable assumption.
+ data_.reserve(10000);
+ min_stack_.reserve(10000);
+ }
+
+ void push(int x)
+ {
+ data_.push_back(x);
+ if (min_stack_.empty())
+ {
+ min_stack_.push_back(x);
+ }
+ else
+ {
+ min_stack_.push_back(std::min(min_stack_.back(), x));
+ }
+ }
+
+ void pop()
+ {
+ data_.pop_back();
+ min_stack_.pop_back();
+ }
+
+ int top()
+ {
+ return data_.back();
+ }
+
+ int getMin()
+ {
+ return min_stack_.back();
+ }
+
+private:
+ std::vector<int> data_;
+ std::vector<int> min_stack_;
+};
|