bal1 - pbinfo

#include <iostream>
#include <fstream>
#include <algorithm>
using namespace std;

ifstream fin("bal.in");
ofstream fout("bal.out");

void citire(int a[], int& n)
{
    for(int i=0; i<n; i++)
        fin >> a[i];
}
int main()
{
    int n, m, f[100001]={0}, b[100001]={0};
    fin >> n >> m;
    citire(f, n);
    citire(b, m);

    sort(f, f+n);
    sort(b, b+m);

    int nrPerechi=0, i=0, j=0;
    while (i<n && j<m)
    {
        if (f[i] <= b[j])
        {
            nrPerechi++;
            i++;
            j++;
        }
        else
            j++;
    }

    fout<<nrPerechi;
    return 0;
}