제출 #685091

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
685091		vovamr	Restore Array (RMI19_restore)	C++17	45 / 100	99 ms	640 KiB

restore

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#define fi first
#define se second
#define ll long long
#define ld long double
#define sz(x) ((int)(x).size())
#define all(x) 	(x).begin(), (x).end()
#define pb push_back
#define mpp make_pair
#define ve vector
using namespace std;
using namespace __gnu_pbds;
template<class T> using oset = tree<T,null_type,less<T>,rb_tree_tag,tree_order_statistics_node_update>;
const ll inf = 1e18; const int iinf = 1e9;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;
mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
template <typename T> inline bool chmin(T& a, T b) { return (a > b ? a = b, 1 : 0); }
template <typename T> inline bool chmax(T& a, T b) { return (a < b ? a = b, 1 : 0); }

const int N = 5e3 + 10;

int n;
int a[N];
inline void build() {
	for (int i = 0; i < n; ++i) {
		a[i] = -1;
	}
}
inline array<int,3> get(int l, int r) {
	int s = 0, mn = iinf, cmn = 0;
	for (int i = l; i <= r; ++i) {
		s += a[i];
		if (mn == a[i]) ++cmn;
		else if (mn > a[i]) mn = a[i], cmn = 1;
	}
	return {s, mn, cmn};
}
inline void upd(int l, int r, int x) {
	for (int i = l; i <= r; ++i) {
		a[i] = x;
	}
}

inline void solve() {
	int m;
	cin >> n >> m;
	ve<array<int,4>> e(m);
	for (auto &[l, r, k, x] : e) cin >> l >> r >> k >> x;

	sort(all(e));

	if (n <= 18) {
		ve<int> pf(n);
		for (int ma = 0; ma < (1 << n); ++ma) {
			for (int i = 0; i < n; ++i) {
				pf[i] = ma >> i & 1 ^ 1;
				if (i) pf[i] += pf[i - 1];
			}
			bool ok = 1;
			for (auto &[l, r, k, x] : e) {
				int s = pf[r] - (!l ? 0 : pf[l - 1]);
				ok &= (x == (s >= k ? 0 : 1));
			}
			if (ok) {
				for (int i = 0; i < n; ++i) {
					cout << !(pf[i] - (!i ? 0 : pf[i - 1])) << " ";
				}
				return;
			}
		}
		cout << -1;
		return;
	}

	build();
	for (auto &[l, r, k, x] : e) {
		if (k == 1 && x == 1) {
			for (int i = l; i <= r; ++i) {
				if (a[i] == 0) return void(cout << -1);
				a[i] = 1;
			}
		}
		else if (k == r - l + 1 && !x) {
			for (int i = l; i <= r; ++i) {
				if (a[i] == 1) return void(cout << -1);
				a[i] = 0;
			}
		}
	}

	for (auto &[l, r, k, x] : e) {
		if (k == 1 && x == 0) {
			bool ok = 0;
			for (int i = l; i <= r; ++i) {
				if (a[i] == 0) {
					ok = 1;
					break;
				}
			}
			if (!ok) {
				for (int i = l; i <= r; ++i) {
					if (a[i] == -1) {
						a[i] = 0; ok = 1;
						break;
					}
				}
			}
			if (!ok) return void(cout << -1);
		}
		else if (k == r - l + 1 && x == 1) {
			bool ok = 0;
			for (int i = l; i <= r; ++i) {
				if (a[i] == 1) {
					ok = 1;
					break;
				}
			}
			if (!ok) {
				for (int i = l; i <= r; ++i) {
					if (a[i] == -1) {
						a[i] = 1; ok = 1;
						break;
					}
				}
			}
			if (!ok) return void(cout << -1);
		}
	}

	for (int i = 0; i < n; ++i) if (a[i] == -1) a[i] = 0;
	for (int i = 0; i < n; ++i) cout << a[i] << " ";
}

signed main() {
	ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
	int q = 1; // cin >> q;
	while (q--) solve();
	cerr << fixed << setprecision(3) << "Time execution: " << (double)clock() / CLOCKS_PER_SEC << endl;
}

컴파일 시 표준 에러 (stderr) 메시지

restore.cpp: In function 'void solve()':
restore.cpp:59:21: warning: suggest parentheses around arithmetic in operand of '^' [-Wparentheses]
   59 |     pf[i] = ma >> i & 1 ^ 1;
      |             ~~~~~~~~^~~

• Subtask 1: 7 / 7
• Subtask 2: 13 / 13
• Subtask 3: 25 / 25
• Subtask 4: 0 / 55