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답안 #212288

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
212288 2020-03-22T16:39:14 Z ksun48 별자리 3 (JOI20_constellation3) C++17
100 / 100
 324 ms 82552 KB 
#include <bits/stdc++.h>
using namespace std;

#define rep(i, a, b) for(int i = a; i < (b); ++i)
#define trav(a, x) for(auto& a : x)
#define all(x) x.begin(), x.end()
#define sz(x) (int)(x).size()
typedef long long ll;
typedef pair<int, int> pii;
typedef vector<int> vi;

using ll = long long;

template<class T>
struct RMQ {
	vector<vector<T>> jmp;

	RMQ(const vector<T>& V) {
		int N = sz(V), on = 1, depth = 1;
		while (on < sz(V)) on *= 2, depth++;
		jmp.assign(depth, V);
		rep(i,0,depth-1) rep(j,0,N)
			jmp[i+1][j] = max(jmp[i][j],
			jmp[i][min(N - 1, j + (1 << i))]);
	}

	T query(int a, int b) {
		assert(a < b); // or return inf if a == b
		int dep = 31 - __builtin_clz(b - a);
		return max(jmp[dep][a], jmp[dep][b - (1 << dep)]);
	}
};

RMQ<pair<int,int> > rmq({});

vector<pair<int,int> > a;
vector<ll> base_cost;
vector<multiset<pair<int, ll> > > cost;
vector<ll> no_star_cost;

int merge(int x, int y){
	if(cost[x].size() < cost[y].size()) swap(x, y);
	for(pair<int, ll> p : cost[y]){
		cost[x].insert({p.first, p.second + no_star_cost[x] - no_star_cost[y]});
	}
	base_cost[x] += no_star_cost[y] + base_cost[y];
	return x;
}

int solve(int l, int r, int cap){
	int cur;
	if(l + 1 == r){
		cur = l;
	} else {
		pair<int,int> v = rmq.query(l, r);
		int best = v.second;
		int val = v.first;
		cur = solve(best, best + 1, val);
		if(l < best){
			cur = merge(cur, solve(l, best, val));
		}
		if(best + 1 < r){
			cur = merge(cur, solve(best + 1, r, val));
		}
	}
	while(!cost[cur].empty() && (*cost[cur].begin()).first <= cap){
		no_star_cost[cur] = max(no_star_cost[cur], (*cost[cur].begin()).second);
		cost[cur].erase(cost[cur].begin());
	}
	return cur;
}

int main(){
	ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0);
	int n;
	cin >> n;
	a.resize(n);

	base_cost.resize(n);
	no_star_cost.resize(n);
	cost.resize(n);
	for(int i = 0; i < n; i++){
		cin >> a[i].first;
		a[i].second = i;
	}
	rmq = RMQ<pair<int,int> >(a);
	int m;
	cin >> m;
	ll tot_cost = 0;
	for(int i = 0; i < m; i++){
		ll x, y, c;
		cin >> x >> y >> c;
		x--;
		cost[x].insert({y, c});
		tot_cost += c;
	}
	int z = solve(0, n, n+1);
	cout << tot_cost - (no_star_cost[z] + base_cost[z]) << '\n';
}

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 10 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 6 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 6 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct

Subtask #2
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 10 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 6 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 6 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 6 ms 768 KB Output is correct
24 Correct 6 ms 768 KB Output is correct
25 Correct 6 ms 768 KB Output is correct
26 Correct 6 ms 768 KB Output is correct
27 Correct 6 ms 768 KB Output is correct
28 Correct 6 ms 768 KB Output is correct
29 Correct 6 ms 768 KB Output is correct
30 Correct 6 ms 768 KB Output is correct
31 Correct 6 ms 768 KB Output is correct
32 Correct 6 ms 896 KB Output is correct
33 Correct 7 ms 896 KB Output is correct
34 Correct 6 ms 896 KB Output is correct
35 Correct 6 ms 896 KB Output is correct
36 Correct 6 ms 1024 KB Output is correct
37 Correct 7 ms 896 KB Output is correct
38 Correct 6 ms 896 KB Output is correct
39 Correct 10 ms 896 KB Output is correct
40 Correct 6 ms 896 KB Output is correct
41 Correct 6 ms 896 KB Output is correct
42 Correct 6 ms 896 KB Output is correct
43 Correct 8 ms 1152 KB Output is correct
44 Correct 6 ms 896 KB Output is correct

Subtask #3
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 5 ms 384 KB Output is correct
2 Correct 5 ms 384 KB Output is correct
3 Correct 5 ms 384 KB Output is correct
4 Correct 5 ms 384 KB Output is correct
5 Correct 5 ms 384 KB Output is correct
6 Correct 10 ms 384 KB Output is correct
7 Correct 5 ms 384 KB Output is correct
8 Correct 6 ms 384 KB Output is correct
9 Correct 5 ms 384 KB Output is correct
10 Correct 6 ms 384 KB Output is correct
11 Correct 5 ms 384 KB Output is correct
12 Correct 5 ms 384 KB Output is correct
13 Correct 5 ms 384 KB Output is correct
14 Correct 5 ms 384 KB Output is correct
15 Correct 5 ms 384 KB Output is correct
16 Correct 5 ms 384 KB Output is correct
17 Correct 5 ms 384 KB Output is correct
18 Correct 5 ms 384 KB Output is correct
19 Correct 5 ms 384 KB Output is correct
20 Correct 5 ms 384 KB Output is correct
21 Correct 5 ms 384 KB Output is correct
22 Correct 5 ms 384 KB Output is correct
23 Correct 6 ms 768 KB Output is correct
24 Correct 6 ms 768 KB Output is correct
25 Correct 6 ms 768 KB Output is correct
26 Correct 6 ms 768 KB Output is correct
27 Correct 6 ms 768 KB Output is correct
28 Correct 6 ms 768 KB Output is correct
29 Correct 6 ms 768 KB Output is correct
30 Correct 6 ms 768 KB Output is correct
31 Correct 6 ms 768 KB Output is correct
32 Correct 6 ms 896 KB Output is correct
33 Correct 7 ms 896 KB Output is correct
34 Correct 6 ms 896 KB Output is correct
35 Correct 6 ms 896 KB Output is correct
36 Correct 6 ms 1024 KB Output is correct
37 Correct 7 ms 896 KB Output is correct
38 Correct 6 ms 896 KB Output is correct
39 Correct 10 ms 896 KB Output is correct
40 Correct 6 ms 896 KB Output is correct
41 Correct 6 ms 896 KB Output is correct
42 Correct 6 ms 896 KB Output is correct
43 Correct 8 ms 1152 KB Output is correct
44 Correct 6 ms 896 KB Output is correct
45 Correct 220 ms 56184 KB Output is correct
46 Correct 231 ms 55416 KB Output is correct
47 Correct 227 ms 55160 KB Output is correct
48 Correct 217 ms 56056 KB Output is correct
49 Correct 223 ms 54648 KB Output is correct
50 Correct 217 ms 54460 KB Output is correct
51 Correct 213 ms 54776 KB Output is correct
52 Correct 218 ms 55800 KB Output is correct
53 Correct 219 ms 55544 KB Output is correct
54 Correct 289 ms 72312 KB Output is correct
55 Correct 314 ms 69496 KB Output is correct
56 Correct 324 ms 68344 KB Output is correct
57 Correct 318 ms 67704 KB Output is correct
58 Correct 303 ms 72312 KB Output is correct
59 Correct 297 ms 72056 KB Output is correct
60 Correct 158 ms 72520 KB Output is correct
61 Correct 319 ms 82552 KB Output is correct
62 Correct 312 ms 72056 KB Output is correct
63 Correct 306 ms 77432 KB Output is correct
64 Correct 308 ms 79096 KB Output is correct
65 Correct 316 ms 72568 KB Output is correct
66 Correct 316 ms 79992 KB Output is correct