#include "toxic.h"
#include <algorithm>
#include <numeric>
#include <random>
#include <ranges>
#include <set>
void determine_type(int n) {
std::vector<char> ans(n + 1);
auto create_vec = [](int s, int e) {
std::vector<int> ans;
for (int i = s; i <= e; ++i) {
ans.push_back(i);
}
return ans;
};
int toxic_loc =
*std::ranges::partition_point(std::views::iota(1, n + 1), [&](int i) {
std::vector<int> sample = create_vec(1, i);
return sample.size() == query_sample(sample);
});
auto create_sample = [&](std::vector<int>::iterator begin,
std::vector<int>::iterator end) {
std::vector<int> sample;
for (int bt = 0; bt < 8 and begin != end; ++bt, ++begin) {
for (int j = 0; j < (1 << bt); ++j) {
sample.push_back(*begin);
}
}
return sample;
};
std::vector<int> naturals(n + 1);
std::iota(naturals.begin(), naturals.end(), 0);
std::vector<int> check; // normal, toxic
for (int i = 1; i <= n; i += 8) {
auto sample = create_sample(naturals.begin() + i,
naturals.begin() + std::min(n + 1, i + 8));
if (query_sample(sample) == (1 << 8) - 1) {
sample.push_back(toxic_loc);
int mask = query_sample(sample);
for (int bt = 0; bt < 8 and i + bt <= n; ++bt) {
if (mask & (1 << bt)) {
ans[i + bt] = 'S';
} else {
ans[i + bt] = 'R';
}
}
} else {
sample.push_back(toxic_loc);
int mask = query_sample(sample);
for (int bt = 0; bt < 8 and i + bt <= n; ++bt) {
if (mask & (1 << bt)) {
ans[i + bt] = 'S';
} else {
check.push_back(i + bt);
}
}
}
}
std::random_device rd;
std::mt19937 rng(rd());
std::shuffle(check.begin(), check.end(), rng);
for (int i = 0; i < check.size(); i += 2) {
std::string map = "TR";
if (i == check.size() - 1) {
ans[check[i]] = map[query_sample({check[i]})];
continue;
}
if (query_sample({check[i], check[i + 1]}) == 2) {
ans[check[i]] = ans[check[i + 1]] = 'R';
} else {
ans[check[i]] = map[query_sample({check[i]})];
ans[check[i + 1]] = map[query_sample({check[i + 1]})];
}
}
for (int i = 1; i <= n; ++i) {
answer_type(i, ans[i]);
}
}
