Pascal's Triangle II.cpp

class Solution {
public:
    vector<int> getRow(int rowIndex) {
        vector<int> result;
        for(int i = 0; i <= rowIndex; ++i)
        {
            for (int j = result.size() - 1; j > 0; --j)
                result[j] += result[j - 1];
            result.push_back(1);
        }
        return result;
    }
};