WA on Buzzwords

input/code.cpp: In function 'int main()':
input/code.cpp:17:7: warning: unused variable 'n' [-Wunused-variable]
   17 |   int n = 1000;
      |       ^

#include <iostream>
#include <random>
#include <set>
#include <cassert>
#include <chrono>

std::mt19937 rng(std::chrono::high_resolution_clock::now().time_since_epoch().count());

int random(int l, int r) {
  assert(l <= r);
  return std::uniform_int_distribution<int>(l, r)(rng);
}

int main() {
  std::ios::sync_with_stdio(false);
  std::cin.tie(0);
  int n = 1000;
  std::string s;
  for (int i = 1; i <= 1000; i++) {
    s += (char)('a' + random(0, 25));
  }
  std::cout << s << '\n';
  int q = 100000;
  int Q = 200000;
  std::set<std::string> que;
  while (q > 0 && Q > 0) {
    int len = std::min(Q, 2);
    Q -= len;
    std::string t;
    for (int i = 1; i <= len; i++) {
      t += (char)('a' + random(0, 25));
    }
    que.insert(t);
    q--;
  }
  std::cout << que.size() << '\n';
  for (auto x : que) {
    std::cout << x << '\n';
  }
  return 0;
}

Test 1

Verdict: WRONG ANSWER