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답안 #213028

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
213028 2020-03-24T18:59:12 Z dolphingarlic 별자리 3 (JOI20_constellation3) C++14
100 / 100
 599 ms 46840 KB 
#include <bits/stdc++.h>
#define FOR(i, x, y) for (int i = x; i < y; i++)
typedef long long ll;
using namespace std;

int n, m;
ll ans = 0;

ll segtree[800001], lazy[800001];

void push_lazy(int node, int l, int r) {
	segtree[node] += lazy[node];
	if (l != r) {
		lazy[node * 2] += lazy[node];
		lazy[node * 2 + 1] += lazy[node];
	}
	lazy[node] = 0;
}

void update(int a, int b, ll val, int node = 1, int l = 1, int r = n) {
	push_lazy(node, l, r);
	if (l > b || r < a) return;
	if (l >= a && r <= b) {
		lazy[node] = val;
		push_lazy(node, l, r);
	} else {
		int mid = (l + r) / 2;
		update(a, b, val, node * 2, l, mid);
		update(a, b, val, node * 2 + 1, mid + 1, r);
		segtree[node] = max(segtree[node * 2], segtree[node * 2 + 1]);
	}
}

ll query(int a, int b, int node = 1, int l = 1, int r = n) {
	push_lazy(node, l, r);
	if (l > b || r < a) return 0;
	if (l >= a && r <= b) return segtree[node];
	int mid = (l + r) / 2;
	return max(query(a, b, node * 2, l, mid), query(a, b, node * 2 + 1, mid + 1, r));
}

int cmp[200001];
pair<int, int> range[200001];

int find(int A) {
	while (A != cmp[A]) cmp[A] = cmp[cmp[A]], A = cmp[A];
	return A;
}

void onion(int A, int B) {
	A = find(A), B = find(B);
	range[A].first = min(range[A].first, range[B].first);
	range[A].second = max(range[A].second, range[B].second);
	cmp[B] = A;
}

bool active[200001];

int a[200001];
vector<int> cmp_start[200002];
vector<pair<int, ll>> col[200001], row[200001];

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cin >> n;
	FOR(i, 1, n + 1) {
		cin >> a[i];
		cmp_start[a[i] + 1].push_back(i);
	}
	cin >> m;
	FOR(i, 1, m + 1) {
		int x, y;
		ll v;
		cin >> x >> y >> v;
		col[x].push_back({y, v});
		ans += v;
	}

	FOR(i, 1, n + 1) {
		sort(col[i].begin(), col[i].end());
		vector<pair<int, ll>> keep;
		ll last = 0;
		for (pair<int, ll> j : col[i]) if (j.second > last) {
			keep.push_back(j);
			last = j.second;
		}
		last = 0;
		for (pair<int, ll> j : keep) {
			row[j.first].push_back({i, j.second - last});
			last = j.second;
		}
	}

	iota(cmp + 1, cmp + n + 1, 1);
	FOR(i, 1, n + 1) range[i] = {i, i};

	FOR(i, 1, n + 1) {
		for (int x : cmp_start[i]) {
			ll l_mx = 0, r_mx = 0, dp = 0;

			if (x - 1 && active[x - 1]) {
				l_mx = query(range[find(x - 1)].first, range[find(x - 1)].second);
				dp += l_mx;
			}
			if (x + 1 <= n && active[x + 1]) {
				r_mx = query(range[find(x + 1)].first, range[find(x + 1)].second);
				dp += r_mx;
			}

			if (x - 1 && active[x - 1])
				update(range[find(x - 1)].first, range[find(x - 1)].second, r_mx);
			if (x + 1 <= n && active[x + 1])
				update(range[find(x + 1)].first, range[find(x + 1)].second, l_mx);

			if (x - 1 && active[x - 1]) onion(x - 1, x);
			if (x + 1 <= n && active[x + 1]) onion(x, x + 1);
			active[x] = true;
			update(x, x, dp);
		}
		
		for (pair<int, ll> star : row[i]) update(star.first, star.first, star.second);
	}

	ll mx = 0;
	FOR(i, 1, n + 1) {
		if (a[i] == n) {
			ans -= mx;
			mx = 0;
		} else mx = max(mx, query(i, i));
	}
	ans -= mx;
	cout << ans;
	return 0;
}

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 14464 KB Output is correct
2 Correct 14 ms 14464 KB Output is correct
3 Correct 13 ms 14464 KB Output is correct
4 Correct 13 ms 14464 KB Output is correct
5 Correct 13 ms 14464 KB Output is correct
6 Correct 13 ms 14592 KB Output is correct
7 Correct 13 ms 14592 KB Output is correct
8 Correct 13 ms 14464 KB Output is correct
9 Correct 13 ms 14464 KB Output is correct
10 Correct 13 ms 14592 KB Output is correct
11 Correct 13 ms 14464 KB Output is correct
12 Correct 13 ms 14464 KB Output is correct
13 Correct 13 ms 14592 KB Output is correct
14 Correct 13 ms 14592 KB Output is correct
15 Correct 13 ms 14464 KB Output is correct
16 Correct 13 ms 14464 KB Output is correct
17 Correct 13 ms 14464 KB Output is correct
18 Correct 13 ms 14592 KB Output is correct
19 Correct 13 ms 14464 KB Output is correct
20 Correct 13 ms 14592 KB Output is correct
21 Correct 13 ms 14592 KB Output is correct
22 Correct 13 ms 14592 KB Output is correct

Subtask #2
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 14464 KB Output is correct
2 Correct 14 ms 14464 KB Output is correct
3 Correct 13 ms 14464 KB Output is correct
4 Correct 13 ms 14464 KB Output is correct
5 Correct 13 ms 14464 KB Output is correct
6 Correct 13 ms 14592 KB Output is correct
7 Correct 13 ms 14592 KB Output is correct
8 Correct 13 ms 14464 KB Output is correct
9 Correct 13 ms 14464 KB Output is correct
10 Correct 13 ms 14592 KB Output is correct
11 Correct 13 ms 14464 KB Output is correct
12 Correct 13 ms 14464 KB Output is correct
13 Correct 13 ms 14592 KB Output is correct
14 Correct 13 ms 14592 KB Output is correct
15 Correct 13 ms 14464 KB Output is correct
16 Correct 13 ms 14464 KB Output is correct
17 Correct 13 ms 14464 KB Output is correct
18 Correct 13 ms 14592 KB Output is correct
19 Correct 13 ms 14464 KB Output is correct
20 Correct 13 ms 14592 KB Output is correct
21 Correct 13 ms 14592 KB Output is correct
22 Correct 13 ms 14592 KB Output is correct
23 Correct 15 ms 14720 KB Output is correct
24 Correct 16 ms 14720 KB Output is correct
25 Correct 16 ms 14720 KB Output is correct
26 Correct 16 ms 14720 KB Output is correct
27 Correct 16 ms 14720 KB Output is correct
28 Correct 16 ms 14720 KB Output is correct
29 Correct 16 ms 14720 KB Output is correct
30 Correct 16 ms 14720 KB Output is correct
31 Correct 17 ms 14720 KB Output is correct
32 Correct 16 ms 14720 KB Output is correct
33 Correct 16 ms 14720 KB Output is correct
34 Correct 19 ms 14720 KB Output is correct
35 Correct 16 ms 14848 KB Output is correct
36 Correct 15 ms 14720 KB Output is correct
37 Correct 16 ms 14720 KB Output is correct
38 Correct 16 ms 14720 KB Output is correct
39 Correct 16 ms 14720 KB Output is correct
40 Correct 16 ms 14720 KB Output is correct
41 Correct 15 ms 14720 KB Output is correct
42 Correct 15 ms 14720 KB Output is correct
43 Correct 15 ms 14720 KB Output is correct
44 Correct 15 ms 14720 KB Output is correct

Subtask #3
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 13 ms 14464 KB Output is correct
2 Correct 14 ms 14464 KB Output is correct
3 Correct 13 ms 14464 KB Output is correct
4 Correct 13 ms 14464 KB Output is correct
5 Correct 13 ms 14464 KB Output is correct
6 Correct 13 ms 14592 KB Output is correct
7 Correct 13 ms 14592 KB Output is correct
8 Correct 13 ms 14464 KB Output is correct
9 Correct 13 ms 14464 KB Output is correct
10 Correct 13 ms 14592 KB Output is correct
11 Correct 13 ms 14464 KB Output is correct
12 Correct 13 ms 14464 KB Output is correct
13 Correct 13 ms 14592 KB Output is correct
14 Correct 13 ms 14592 KB Output is correct
15 Correct 13 ms 14464 KB Output is correct
16 Correct 13 ms 14464 KB Output is correct
17 Correct 13 ms 14464 KB Output is correct
18 Correct 13 ms 14592 KB Output is correct
19 Correct 13 ms 14464 KB Output is correct
20 Correct 13 ms 14592 KB Output is correct
21 Correct 13 ms 14592 KB Output is correct
22 Correct 13 ms 14592 KB Output is correct
23 Correct 15 ms 14720 KB Output is correct
24 Correct 16 ms 14720 KB Output is correct
25 Correct 16 ms 14720 KB Output is correct
26 Correct 16 ms 14720 KB Output is correct
27 Correct 16 ms 14720 KB Output is correct
28 Correct 16 ms 14720 KB Output is correct
29 Correct 16 ms 14720 KB Output is correct
30 Correct 16 ms 14720 KB Output is correct
31 Correct 17 ms 14720 KB Output is correct
32 Correct 16 ms 14720 KB Output is correct
33 Correct 16 ms 14720 KB Output is correct
34 Correct 19 ms 14720 KB Output is correct
35 Correct 16 ms 14848 KB Output is correct
36 Correct 15 ms 14720 KB Output is correct
37 Correct 16 ms 14720 KB Output is correct
38 Correct 16 ms 14720 KB Output is correct
39 Correct 16 ms 14720 KB Output is correct
40 Correct 16 ms 14720 KB Output is correct
41 Correct 15 ms 14720 KB Output is correct
42 Correct 15 ms 14720 KB Output is correct
43 Correct 15 ms 14720 KB Output is correct
44 Correct 15 ms 14720 KB Output is correct
45 Correct 593 ms 44412 KB Output is correct
46 Correct 592 ms 43896 KB Output is correct
47 Correct 599 ms 44152 KB Output is correct
48 Correct 597 ms 44152 KB Output is correct
49 Correct 573 ms 44028 KB Output is correct
50 Correct 580 ms 43768 KB Output is correct
51 Correct 580 ms 44024 KB Output is correct
52 Correct 599 ms 44280 KB Output is correct
53 Correct 591 ms 44024 KB Output is correct
54 Correct 521 ms 46840 KB Output is correct
55 Correct 556 ms 46528 KB Output is correct
56 Correct 515 ms 46328 KB Output is correct
57 Correct 516 ms 46200 KB Output is correct
58 Correct 527 ms 41208 KB Output is correct
59 Correct 482 ms 41080 KB Output is correct
60 Correct 390 ms 46200 KB Output is correct
61 Correct 456 ms 41168 KB Output is correct
62 Correct 540 ms 45292 KB Output is correct
63 Correct 455 ms 40860 KB Output is correct
64 Correct 438 ms 40704 KB Output is correct
65 Correct 557 ms 45236 KB Output is correct
66 Correct 439 ms 40912 KB Output is correct