Масиви

#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
using namespace std;


int main() {
    int xCount, yCount;
    cin >> xCount >> yCount;
    vector<int> x(xCount);
    vector<int> y(yCount);

    for(int i = 0; i < xCount; i++)
        cin >> x[i];
    for(int i = 0; i < yCount; i++)
        cin >> y[i];

    sort(x.begin(), x.end());

    for(int i = 0; i < yCount; i++){
        cout << (lower_bound(x.begin(), x.end(), y[i]) - x.begin()) << " ";
    }
    return 0;
}