diff options
Diffstat (limited to 'store/works/solutions/leetcode/cpp/22.cpp')
| -rw-r--r-- | store/works/solutions/leetcode/cpp/22.cpp | 40 | 
1 files changed, 40 insertions, 0 deletions
| diff --git a/store/works/solutions/leetcode/cpp/22.cpp b/store/works/solutions/leetcode/cpp/22.cpp new file mode 100644 index 0000000..e9467f1 --- /dev/null +++ b/store/works/solutions/leetcode/cpp/22.cpp @@ -0,0 +1,40 @@ +#include <string>
 +#include <vector>
 +
 +using std::string;
 +using std::vector;
 +
 +class Solution
 +{
 +public:
 +    static void backtrack(vector<string> &result, string ¤t, int left, int right, int count, int string_length)
 +    {
 +        if (current.length() == string_length)
 +        {
 +            result.push_back(current);
 +            return;
 +        }
 +
 +        if (left < count)
 +        {
 +            current.push_back('(');
 +            backtrack(result, current, left + 1, right, count, string_length);
 +            current.pop_back();
 +        }
 +
 +        if (right < left)
 +        {
 +            current.push_back(')');
 +            backtrack(result, current, left, right + 1, count, string_length);
 +            current.pop_back();
 +        }
 +    }
 +
 +    vector<string> generateParenthesis(int n)
 +    {
 +        vector<string> result;
 +        string current;
 +        backtrack(result, current, 0, 0, n, n * 2);
 +        return std::move(result);
 +    }
 +};
\ No newline at end of file | 
