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답안 #223670

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
223670 2020-04-16T02:21:04 Z super_j6 별자리 3 (JOI20_constellation3) C++14
100 / 100
 289 ms 64632 KB 
#include <iostream>
#include <cstdio>
#include <algorithm>
#include <map>
#include <vector>
#include <stack>
using namespace std;
#define endl '\n'
#define ll long long
#define pi pair<int, int>
#define f first
#define s second

const int maxn = 200001;
int n, m;
int a[maxn], l[maxn], r[maxn];
ll dp[maxn];
map<int, ll> ans[maxn];
vector<pi> p[maxn];
vector<int> stk;

void add(int x, int y, ll z){
	if((--ans[x].upper_bound(y))->s >= z) return;
	ans[x][y] = z;
	auto it = ans[x].upper_bound(y);
	while(it != ans[x].end() && it->s <= z) it = ans[x].erase(it);
}

void dfs(int c){
	if(!c) return;
	int l = ::l[c], r = ::r[c];
	dfs(l), dfs(r);
	
	ll x = dp[l] + (--ans[l].upper_bound(a[c]))->s;
	ll y = dp[r] + (--ans[r].upper_bound(a[c]))->s;
	dp[l] += y, dp[r] += x;
	
	if(ans[l].size() > ans[r].size()) swap(l, r);
	if(r) swap(ans[c], ans[r]), swap(dp[c], dp[r]);
	dp[0] = 0;
	
	for(auto i : ans[l]) add(c, i.f, i.s + dp[l] - dp[c]);
	for(auto i : p[c]) add(c, i.f, i.s + x + y - dp[c]);
}

int main(){
	ios::sync_with_stdio(false);
	cin.tie(NULL);
	
	cin >> n;
	
	ans[0][1] = 0;
	for(int i = 1; i <= n; i++){
		ans[i][1] = 0;
		cin >> a[i];
		while(!stk.empty() && a[stk.back()] < a[i]){
			l[i] = stk.back();
			stk.pop_back();
		}
		if(!stk.empty()) r[stk.back()] = i;
		stk.push_back(i);
	}
	
	cin >> m;
	
	ll ret = 0;
	for(int i = 0; i < m; i++){
		int x, y, z;
		cin >> x >> y >> z;
		ret += z;
		p[x].push_back({y, z});
	}
	
	dfs(stk[0]);
	ret -= dp[stk[0]] + (--ans[stk[0]].end())->s;
	
	cout << ret << endl;

	return 0;
}

Subtask #1
14.0 / 14.0

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

Subtask #2
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 14464 KB Output is correct
2 Correct 11 ms 14464 KB Output is correct
3 Correct 12 ms 14464 KB Output is correct
4 Correct 11 ms 14464 KB Output is correct
5 Correct 12 ms 14464 KB Output is correct
6 Correct 14 ms 14464 KB Output is correct
7 Correct 12 ms 14464 KB Output is correct
8 Correct 12 ms 14464 KB Output is correct
9 Correct 12 ms 14464 KB Output is correct
10 Correct 11 ms 14464 KB Output is correct
11 Correct 12 ms 14592 KB Output is correct
12 Correct 12 ms 14464 KB Output is correct
13 Correct 12 ms 14592 KB Output is correct
14 Correct 14 ms 14464 KB Output is correct
15 Correct 12 ms 14464 KB Output is correct
16 Correct 13 ms 14464 KB Output is correct
17 Correct 12 ms 14464 KB Output is correct
18 Correct 12 ms 14464 KB Output is correct
19 Correct 12 ms 14464 KB Output is correct
20 Correct 12 ms 14464 KB Output is correct
21 Correct 12 ms 14464 KB Output is correct
22 Correct 12 ms 14464 KB Output is correct
23 Correct 13 ms 14720 KB Output is correct
24 Correct 15 ms 14848 KB Output is correct
25 Correct 15 ms 14720 KB Output is correct
26 Correct 14 ms 14720 KB Output is correct
27 Correct 14 ms 14720 KB Output is correct
28 Correct 13 ms 14720 KB Output is correct
29 Correct 13 ms 14720 KB Output is correct
30 Correct 13 ms 14720 KB Output is correct
31 Correct 14 ms 14752 KB Output is correct
32 Correct 13 ms 14848 KB Output is correct
33 Correct 13 ms 14848 KB Output is correct
34 Correct 13 ms 14720 KB Output is correct
35 Correct 14 ms 14848 KB Output is correct
36 Correct 13 ms 14848 KB Output is correct
37 Correct 13 ms 14848 KB Output is correct
38 Correct 13 ms 14976 KB Output is correct
39 Correct 13 ms 14720 KB Output is correct
40 Correct 13 ms 14848 KB Output is correct
41 Correct 18 ms 14720 KB Output is correct
42 Correct 13 ms 14720 KB Output is correct
43 Correct 14 ms 14848 KB Output is correct
44 Correct 13 ms 14720 KB Output is correct

Subtask #3
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 12 ms 14464 KB Output is correct
2 Correct 11 ms 14464 KB Output is correct
3 Correct 12 ms 14464 KB Output is correct
4 Correct 11 ms 14464 KB Output is correct
5 Correct 12 ms 14464 KB Output is correct
6 Correct 14 ms 14464 KB Output is correct
7 Correct 12 ms 14464 KB Output is correct
8 Correct 12 ms 14464 KB Output is correct
9 Correct 12 ms 14464 KB Output is correct
10 Correct 11 ms 14464 KB Output is correct
11 Correct 12 ms 14592 KB Output is correct
12 Correct 12 ms 14464 KB Output is correct
13 Correct 12 ms 14592 KB Output is correct
14 Correct 14 ms 14464 KB Output is correct
15 Correct 12 ms 14464 KB Output is correct
16 Correct 13 ms 14464 KB Output is correct
17 Correct 12 ms 14464 KB Output is correct
18 Correct 12 ms 14464 KB Output is correct
19 Correct 12 ms 14464 KB Output is correct
20 Correct 12 ms 14464 KB Output is correct
21 Correct 12 ms 14464 KB Output is correct
22 Correct 12 ms 14464 KB Output is correct
23 Correct 13 ms 14720 KB Output is correct
24 Correct 15 ms 14848 KB Output is correct
25 Correct 15 ms 14720 KB Output is correct
26 Correct 14 ms 14720 KB Output is correct
27 Correct 14 ms 14720 KB Output is correct
28 Correct 13 ms 14720 KB Output is correct
29 Correct 13 ms 14720 KB Output is correct
30 Correct 13 ms 14720 KB Output is correct
31 Correct 14 ms 14752 KB Output is correct
32 Correct 13 ms 14848 KB Output is correct
33 Correct 13 ms 14848 KB Output is correct
34 Correct 13 ms 14720 KB Output is correct
35 Correct 14 ms 14848 KB Output is correct
36 Correct 13 ms 14848 KB Output is correct
37 Correct 13 ms 14848 KB Output is correct
38 Correct 13 ms 14976 KB Output is correct
39 Correct 13 ms 14720 KB Output is correct
40 Correct 13 ms 14848 KB Output is correct
41 Correct 18 ms 14720 KB Output is correct
42 Correct 13 ms 14720 KB Output is correct
43 Correct 14 ms 14848 KB Output is correct
44 Correct 13 ms 14720 KB Output is correct
45 Correct 206 ms 40184 KB Output is correct
46 Correct 210 ms 39672 KB Output is correct
47 Correct 211 ms 39672 KB Output is correct
48 Correct 215 ms 39900 KB Output is correct
49 Correct 200 ms 39416 KB Output is correct
50 Correct 201 ms 39288 KB Output is correct
51 Correct 203 ms 39544 KB Output is correct
52 Correct 209 ms 39928 KB Output is correct
53 Correct 204 ms 39804 KB Output is correct
54 Correct 212 ms 55108 KB Output is correct
55 Correct 197 ms 51188 KB Output is correct
56 Correct 202 ms 48888 KB Output is correct
57 Correct 216 ms 47584 KB Output is correct
58 Correct 185 ms 46960 KB Output is correct
59 Correct 188 ms 46704 KB Output is correct
60 Correct 257 ms 64632 KB Output is correct
61 Correct 230 ms 46712 KB Output is correct
62 Correct 289 ms 58352 KB Output is correct
63 Correct 225 ms 44688 KB Output is correct
64 Correct 227 ms 45816 KB Output is correct
65 Correct 284 ms 58740 KB Output is correct
66 Correct 221 ms 45176 KB Output is correct