Traffic jam

input/code.cpp: In function 'int main(int, char**)':
input/code.cpp:17:14: error: 'for_each' is not a member of 'std'
   17 |         std::for_each(m.begin() + j, m.begin() + k + 1, [&](int &x) {
      |              ^~~~~~~~

#include <iostream>
#include <vector>

int main(int argc, char ** argv) {

    int n;
    std::cin >> n;

    std::vector<int> m(604801, 0);
    int max = 0;

    int i = 0;
    while (i < n) {
        int j, k;
        std::cin >> j >> k;

        std::for_each(m.begin() + j, m.begin() + k + 1, [&](int &x) {
                if (x + 1 > max)
                    max = x + 1;
                x++;
            });
        i++;
    }

    std::cout << std::endl;

    std::cout << max << std::endl;

    return 0;
}