//
// Created by maxi2 on 17.04.2024.
//

#include <iostream>
#include <vector>

bool checkIsSequence(std::vector<int> vec) {
  if (vec.size() <= 2)
    return false;
  int fac = vec[1] / vec[0];
  for (int i = 1; i < vec.size() - 1; ++i) {
    if (vec[i] != (vec[i - 1] * fac))
      return false;
  }
  return true;
}

int main() {
    std::vector<int> vec = {1, 2, 4, 8, 16};
    std::vector<int> vec2 = {5,25,125,625,3125};
    std::cout << "Is sequence: " << checkIsSequence(vec) << std::endl;
    std::cout << "Is sequence: " << checkIsSequence(vec2) << std::endl;
  return 0;
}