cp/codeforces/640/g.cc
2025-01-30 17:06:38 -05:00

174 lines
3 KiB
C++

#include <bits/stdc++.h>
// https://codeforces.com/blog/entry/96344
#pragma GCC optimize("O2,unroll-loops")
#pragma GCC target("avx2,bmi,bmi2,lzcnt,popcnt")
using namespace std;
template <typename... Args>
void print(std::string const &str, Args &&...args) {
std::cout << std::vformat(str,
// make_format_args binds arguments to const
std::make_format_args(args...));
}
template <typename T>
void print(T const &t) {
std::cout << t;
}
template <std::ranges::range T>
void print(T const &t) {
if constexpr (std::is_convertible_v<T, char const *>) {
std::cout << t << '\n';
} else {
for (auto const &e : t) {
std::cout << e << ' ';
}
std::cout << '\n';
}
}
template <typename... Args>
void println(std::string const &str, Args &&...args) {
print(str, std::forward<Args>(args)...);
cout << '\n';
}
template <typename T>
void println(T const &t) {
print("{}\n", t);
}
template <std::ranges::range T>
void println(T const &t) {
cout << t << '\n';
}
void println() {
std::cout << '\n';
}
template <typename T>
T MAX() {
return std::numeric_limits<T>::max();
}
template <typename T>
T MIN() {
return std::numeric_limits<T>::min();
}
#define ff first
#define ss second
#define eb emplace_back
#define ll long long
#define ld long double
#define vec vector
#define all(x) (x).begin(), (x).end()
#define rall(x) (r).rbegin(), (x).rend()
#define sz(x) static_cast<int>((x).size())
#define FOR(a, b, c) for (int a = b; a < c; ++a)
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
#define randint(a, b) uniform_int_distribution(a, b)(rng)
void YES() {
cout << "YES\n";
}
void NO() {
cout << "NO\n";
}
#ifdef LOCAL
#define dbg(x) cout << __LINE__ << ": " << #x << "=<" << (x) << ">\n";
#else
#define dbg(x)
#endif
static constexpr int MOD = 1e9 + 7;
void solve() {
int n;
cin >> n;
/*
1, 4, 2, 5, 3, 6, 9, 7, 10, 8
1: 5, 7, 3, 6 -> pop -> 2, -4, 3
2: 5, 7, 3, 6, 8
3: 3, 7, 9, 6, 8 -> +4, +2, -3, +2
4: 3, -2, 3, -2
1, 4, 2, 5, 3, 7, 9, 6, 8
n = 4 -> 2 4 1 3
+1, +3, -2, +3, -2, +3, +3, -2, +3, -2
*/
if (n < 4) {
println(-1);
return;
}
if (n == 4) {
println("2 4 1 3");
return;
}
vec<int> ans{1};
int prev = 1;
--n;
while (n >= 5) {
for (auto diff : {3, -2, 3, -2, 3}) {
prev += diff;
ans.push_back(prev);
}
n -= 5;
}
vec<int> diff;
switch (n) {
case 1:
ans.pop_back();
ans.pop_back();
diff = {2, -4, 3};
break;
case 2:
ans.pop_back();
ans.pop_back();
diff = {2, -4, 3, 2};
break;
case 3:
ans.pop_back();
diff = {4, 2, -3, 2};
break;
case 4:
diff = {3, -2, 3, -2};
break;
}
for (auto d : diff) ans.push_back(ans[sz(ans) - 1] + d);
for (auto e : ans) cout << e << ' ';
println();
}
int main() {
cin.tie(nullptr)->sync_with_stdio(false);
int t = 1;
cin >> t;
while (t--) {
solve();
}
return 0;
}