TR2 test case generator

#include <iostream>
#include <cstdlib>
#include <cstdio>
using namespace std;
const int specialtests = 5 , randomtests = 15 , maxMaps = 100 , maxCities = 1000;
int Top;
void construct ( int pnode , int numLeft )
{
    if ( numLeft == 1 )
        return;
    numLeft --;
    int leftsize = rand() % numLeft + 1 , rightsize = numLeft - leftsize;
    if ( leftsize )
    {
        ++ Top;
        cout << pnode <<" L " << Top << endl;
        construct ( Top , leftsize );
    }
    if ( rightsize )
    {
        ++ Top;
        cout << pnode << " R " << Top << endl;
        construct ( Top , rightsize );
    }
}
void outputSample()
{
    cerr <<"Generating sample inputs" << endl;
    string sample = "3\n5\n1 L 2\n1 R 3\n3 L 4\n3 R 5\n4\n1 R 2\n1 L 3\n2 L 4\n3\n1 L 2\n1 R 3\n2\n5\n1 L 2\n2 L 3\n3 L 4\n4 L 5\n6\n1 L 2\n2 R 3\n3 L 4\n4 R 5\n5 L 6\n";
    cout << sample << endl;
}

void outputWorstCase()
{
    cerr <<"Generating worst case inputs" << endl;
    // 100 Ls
    cout << maxMaps << endl;
    for ( int i=0;i<maxMaps;i++ )
    {
        cout << maxCities << endl;
        for ( int i=1;i<maxCities;i++ )
            cout << i <<" L " << i+1 << endl;
    }
    // 100 Rs
    cout << maxMaps << endl;
    for ( int i=0;i<maxMaps;i++ )
    {
        cout << maxCities << endl;
        for ( int i=1;i<maxCities;i++ )
            cout << i <<" R " << i+1 << endl;
    }
    // 50 Ls and 50 Rs
    cout << maxMaps << endl;
    for ( int i=0;i<maxMaps/2;i++ )
    {
        cout << maxCities << endl;
        for ( int i=1;i<maxCities;i++ )
            cout << i <<" L " << i+1 << endl;
    }
    for ( int i=0;i<maxMaps/2;i++ )
    {
        cout << maxCities << endl;
        for ( int i=1;i<maxCities;i++ )
            cout << i <<" R " << i+1 << endl;
    }

}

int main()
{
    FILE * fp = fopen ("log.txt" , "w" );
    freopen ( "input_TR2.txt" , "w" , stdout );
    int seed = time(NULL);
    srand(seed);
    fprintf ( fp , "Seed = %d\n" , seed );
    cout << specialtests +randomtests << endl;
    outputSample();
    outputWorstCase();
    cerr << "Generating random cases" << endl;
    for ( int testNum=0;testNum<randomtests;testNum++ )
    {
        cerr << "Generating testcase: " << specialtests + testNum + 1 << endl;
        cout << maxMaps << endl;
        for ( int i=0;i<maxMaps;i++ )
        {
            cout << maxCities << endl;
            Top = 1;
            construct ( 1 , maxCities );
        }
    }
}