lrw04

import random

n = 20000000
v = 100000000
l = list(range(v))
random.shuffle(l)
l = l[:n]

with open('input.txt', 'w') as f:
    print('\n'.join((str(x) for x in l)), file=f)

lrw04

#include <cassert>
#include <string>
#include <cmath>
#include <vector>
#include <algorithm>
#include <iostream>

using namespace std;

#define STB_IMAGE_IMPLEMENTATION