LeetCode/cpp/pascals-triangle-ii.cpp

class Solution {
public:
    vector<int> getRow(int rowIndex)
    {
        vector<int> result;

        result.push_back(1);
        for (auto k = 0; k < rowIndex; k++) {
            auto next = static_cast<int>(
                static_cast<long>(result.back()) * (rowIndex - k) / (k + 1));
            result.push_back(next);
        }

        return result;
    }
};