Codeforces R199 task E test generator

#pragma warning( disable : 4996)

#include <algorithm>
#include <assert.h>
#include <cmath>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <fstream>
#include <iomanip>
#include <iostream>
#include <limits.h>
#include <list>
#include <map>
#include <queue>
#include <set>
#include <string>
#include <time.h>
#include <vector>
#include <stack>

using namespace std;

int main()
{
    freopen("input.txt","w",stdout);
    int n = 100000;
    int m = 100000;
    printf("%d %d\n", n, m);
    for (int i = 2; i <= n; i++)
        printf("%d %d\n", i, i - 1);

    for (int i = 1; i <= m; i++)
    {
        if (0 == i % 2)
            printf("1 %d\n", i);
        else
            printf("2 %d\n", i);
    }
    return 0;
}