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Submission #539144

# Submission time Handle Problem Language Result Execution time Memory
539144 2022-03-18T13:29:39 Z akhan42 Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) C++17
64 / 100
 2152 ms 262144 KB 
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>

using namespace std;
using namespace __gnu_pbds;

#define F first
#define S second
#define forn(i, n) for(int i = 0; i < n; ++i)
#define forbn(i, b, n) for(int i = b; i < n; ++i)
#define sz(v) (int)v.size()
#define pb push_back
#define mp make_pair
#define eb emplace_back
#define all(v) v.begin(), v.end()
#define min3(a, b, c) min(a, min(b, c))
#define max3(a, b, c) max(a, max(b, c))

typedef pair<int, int> ii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef long long ll;
typedef complex<double> cd; // !!! long double slow

template <class T> inline void mineq(T &a, T b) { a = min(a, b); }
template <class T> inline void maxeq(T &a, T b) { a = max(a, b); }


int n, q;
const int INF = 1000 * 1000 * 1000 + 10;
const int MX = 2 * 1000 * 1000;
int ol[MX], oright[MX];
bool res[MX];
vi a;


bool cmp(int v1, int v2) {
	return ol[v1] < ol[v2];
}


struct Seg {
	int mx[MX], t[MX];
	vi sl[MX];
	vector<ii> rem[MX];

	Seg(vi& a) {
		forn(i, MX)
			res[i] = true;
		for(int p = n; p < 2 * n; p++) {
			mx[p] = a[p - n];
			sl[p].pb(a[p - n]);
			t[p] = -INF;
			oright[p] = ol[p] = p - n;
		}

		for(int p = n - 1; p > 0; p--) {
			ol[p] = min(ol[2 * p], ol[2 * p + 1]);
			oright[p] = max(oright[2 * p], oright[2 * p + 1]);
			mx[p] = max(mx[2 * p], mx[2 * p + 1]);
			t[p] = max(t[2 * p], t[2 * p + 1]);
			merge(all(sl[2 * p]), all(sl[2 * p + 1]), back_inserter(sl[p]));

			int ind = lower_bound(all(sl[2 * p + 1]), mx[2 * p]) - sl[2 * p + 1].begin();
			if(ind != 0)
				maxeq(t[p], mx[2 * p] + sl[2 * p + 1][ind - 1]);
		}

		forn(i, MX)
			sl[i].clear();
	}

	void query(int l, int r, int k, int left_max, int qid) {
		vi vert;
		for (l += n, r += n + 1; l < r; l >>= 1, r >>= 1) {
			if (l & 1) {
				vert.pb(l++);
			}
			if (r & 1) {
				vert.pb(--r);
			}
		}
		sort(all(vert), cmp);

		bool ans = true;
		for(int v: vert) {
			ans = ans && t[v] <= k;
			int rp = left_max - 1, lp = k - left_max + 1;

			if(lp <= rp) {
				rem[v].pb({lp - 1, qid});
				rem[v].pb({rp, qid});
			}

			maxeq(left_max, mx[v]);
		}

		res[qid] = ans;
	}

	void process() {
		for(int v = 1; v < 2 * n; v++) {
			sort(all(rem[v]));
			vi slv;
			for(int j = ol[v]; j <= oright[v]; j++)
				slv.pb(a[j]);
			sort(all(slv));

			set<int> act;
			int i = 0;

			for(ii p: rem[v]) {
				int qid = p.S;
				if(res[qid] == false)
					continue;
				int en = p.F;

				if(i < sz(slv) && slv[i] <= en) {
					for(int qid_act: act) {
						res[qid_act] = false;
					}
					act.clear();
				}
				while(i < sz(slv) && slv[i] <= en)
					i += 1;

				if(act.find(qid) == act.end()) {
					act.insert(qid);
				}
				else {
					act.erase(qid);
				}
			}

			rem[v].clear();
		}
	}
};



void solve() {
	cin >> n >> q;
	a.resize(n);
	forn(i, n)
		cin >> a[i];

	Seg seg(a);
	int qq = q / 4;

	forn(qid, q) {
		int l, r, k;
		cin >> l >> r >> k;
		l--; r--;

		seg.query(l, r, k, -INF, qid);

		if(qid == qq || qid == 2 * qq || qid == 3 * qq) {
			seg.process();
		}
	}

	seg.process();

	forn(qid, q) {
		cout << res[qid] << '\n';
	}
}


int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

//	freopen("boards.in", "r", stdin);
//	freopen("boards.out", "w", stdout);

    int t = 1;
//  cin >> t;
    while(t--) {
        solve();
    }
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 111824 KB Output is correct
2 Correct 72 ms 111816 KB Output is correct
3 Correct 74 ms 111864 KB Output is correct
4 Correct 73 ms 111812 KB Output is correct
5 Correct 68 ms 111868 KB Output is correct
6 Correct 72 ms 111912 KB Output is correct
7 Correct 68 ms 111900 KB Output is correct
8 Correct 70 ms 111952 KB Output is correct
9 Correct 75 ms 111816 KB Output is correct
10 Correct 76 ms 112036 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 111824 KB Output is correct
2 Correct 72 ms 111816 KB Output is correct
3 Correct 74 ms 111864 KB Output is correct
4 Correct 73 ms 111812 KB Output is correct
5 Correct 68 ms 111868 KB Output is correct
6 Correct 72 ms 111912 KB Output is correct
7 Correct 68 ms 111900 KB Output is correct
8 Correct 70 ms 111952 KB Output is correct
9 Correct 75 ms 111816 KB Output is correct
10 Correct 76 ms 112036 KB Output is correct
11 Correct 81 ms 112204 KB Output is correct
12 Correct 96 ms 112684 KB Output is correct
13 Correct 97 ms 112812 KB Output is correct
14 Correct 99 ms 112972 KB Output is correct
15 Correct 110 ms 113068 KB Output is correct
16 Correct 90 ms 112588 KB Output is correct
17 Correct 83 ms 112336 KB Output is correct
18 Correct 80 ms 112712 KB Output is correct

Subtask #3
0 / 13.0

# Verdict Execution time Memory Grader output
1 Runtime error 488 ms 262144 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 873 ms 134644 KB Output is correct
2 Correct 837 ms 133936 KB Output is correct
3 Correct 563 ms 132108 KB Output is correct
4 Correct 573 ms 132364 KB Output is correct
5 Correct 561 ms 132184 KB Output is correct
6 Correct 468 ms 129540 KB Output is correct
7 Correct 439 ms 129600 KB Output is correct
8 Correct 467 ms 131092 KB Output is correct
9 Correct 116 ms 112048 KB Output is correct
10 Correct 432 ms 130564 KB Output is correct

Subtask #5
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 111824 KB Output is correct
2 Correct 72 ms 111816 KB Output is correct
3 Correct 74 ms 111864 KB Output is correct
4 Correct 73 ms 111812 KB Output is correct
5 Correct 68 ms 111868 KB Output is correct
6 Correct 72 ms 111912 KB Output is correct
7 Correct 68 ms 111900 KB Output is correct
8 Correct 70 ms 111952 KB Output is correct
9 Correct 75 ms 111816 KB Output is correct
10 Correct 76 ms 112036 KB Output is correct
11 Correct 81 ms 112204 KB Output is correct
12 Correct 96 ms 112684 KB Output is correct
13 Correct 97 ms 112812 KB Output is correct
14 Correct 99 ms 112972 KB Output is correct
15 Correct 110 ms 113068 KB Output is correct
16 Correct 90 ms 112588 KB Output is correct
17 Correct 83 ms 112336 KB Output is correct
18 Correct 80 ms 112712 KB Output is correct
19 Correct 2152 ms 160744 KB Output is correct
20 Correct 2069 ms 160880 KB Output is correct
21 Correct 2020 ms 157348 KB Output is correct
22 Correct 2013 ms 157388 KB Output is correct
23 Correct 2100 ms 157232 KB Output is correct
24 Correct 1229 ms 149960 KB Output is correct
25 Correct 1275 ms 149864 KB Output is correct
26 Correct 1287 ms 153332 KB Output is correct
27 Correct 1495 ms 153548 KB Output is correct
28 Correct 1494 ms 154396 KB Output is correct
29 Correct 1431 ms 155912 KB Output is correct
30 Correct 1371 ms 155812 KB Output is correct
31 Correct 1411 ms 155988 KB Output is correct
32 Correct 1385 ms 156044 KB Output is correct
33 Correct 1307 ms 156048 KB Output is correct
34 Correct 1073 ms 148656 KB Output is correct
35 Correct 1046 ms 148660 KB Output is correct
36 Correct 1088 ms 148752 KB Output is correct
37 Correct 1065 ms 148704 KB Output is correct
38 Correct 1118 ms 148660 KB Output is correct
39 Correct 1288 ms 149596 KB Output is correct
40 Correct 477 ms 130916 KB Output is correct
41 Correct 951 ms 150080 KB Output is correct

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 67 ms 111824 KB Output is correct
2 Correct 72 ms 111816 KB Output is correct
3 Correct 74 ms 111864 KB Output is correct
4 Correct 73 ms 111812 KB Output is correct
5 Correct 68 ms 111868 KB Output is correct
6 Correct 72 ms 111912 KB Output is correct
7 Correct 68 ms 111900 KB Output is correct
8 Correct 70 ms 111952 KB Output is correct
9 Correct 75 ms 111816 KB Output is correct
10 Correct 76 ms 112036 KB Output is correct
11 Correct 81 ms 112204 KB Output is correct
12 Correct 96 ms 112684 KB Output is correct
13 Correct 97 ms 112812 KB Output is correct
14 Correct 99 ms 112972 KB Output is correct
15 Correct 110 ms 113068 KB Output is correct
16 Correct 90 ms 112588 KB Output is correct
17 Correct 83 ms 112336 KB Output is correct
18 Correct 80 ms 112712 KB Output is correct
19 Runtime error 488 ms 262144 KB Execution killed with signal 9
20 Halted 0 ms 0 KB -