#include <vector>

int stoneBlocks(const std::vector<int>& h)
{
    std::vector<int> height;
    int index = 0;
    int blocks = 0;

    for (int i : h) {
        while (index > 0 && height[index - 1] > i) {
            --index;
        }
        if (index > 0 && height[index - 1] == i) {
            continue;
        }

        if (index == static_cast<int>(height.size())) {
            height.push_back(i);
        } else {
            height[index] = i;
        }
        ++blocks;
        ++index;
    }

    return blocks;
}