Interactor C

#include "testlib.h"
#include <bits/stdc++.h>

#define LIMIT_CONSTANT 15

int n;
std::vector<int> hidden_permutation;

void sum_numbers(std::vector<float> numbers) {

  float sum = 0;
  for (auto idx : hidden_permutation) {
    sum += numbers[idx - 1];
  }

  // std::cout << std::setprecision(std::numeric_limits<float>::max_digits10);

  std::cout << sum << std::endl;
}

int main(int argc, char **argv) {

  registerInteraction(argc, argv);

  n = inf.readInt();
  hidden_permutation = inf.readInts(n);

  std::cout << n << std::endl;
  int limit = LIMIT_CONSTANT * n;

  while (1) {
    std::string token = ouf.readToken();
    if (token == "?") {

      if (limit == 0) {
        quitf(_wa, "Exceeded number of queries");
      }
      limit--;

      std::vector<float> numbers(n);
      for (auto &x : numbers) {
        x = ouf.readReal();
      }
      sum_numbers(numbers);

    } else if (token == "!") {

      std::vector<int> guess = ouf.readInts(n);

      if (guess == hidden_permutation) {
        quitf(_ok, "Correct guess");
      } else {
        quitf(_wa, "Wrong guess");
      }

    } else {
      quitf(_pe, "Expected ? or !, obtained %s", token.c_str());
    }
  }
}