oj.uz

답안 #223669

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
223669 2020-04-16T02:19:04 Z super_j6 별자리 3 (JOI20_constellation3) C++14
100 / 100
 311 ms 78488 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);
	swap(ans[c], ans[r]);
	swap(dp[c], dp[r]);
	
	dp[0] = 0;
	ans[0].clear();
	ans[0][1] = 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 14 ms 14592 KB Output is correct
3 Correct 12 ms 14464 KB Output is correct
4 Correct 12 ms 14464 KB Output is correct
5 Correct 12 ms 14464 KB Output is correct
6 Correct 12 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 14464 KB Output is correct
12 Correct 12 ms 14464 KB Output is correct
13 Correct 12 ms 14592 KB Output is correct
14 Correct 12 ms 14592 KB Output is correct
15 Correct 12 ms 14720 KB Output is correct
16 Correct 12 ms 14592 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 14 ms 14592 KB Output is correct
3 Correct 12 ms 14464 KB Output is correct
4 Correct 12 ms 14464 KB Output is correct
5 Correct 12 ms 14464 KB Output is correct
6 Correct 12 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 14464 KB Output is correct
12 Correct 12 ms 14464 KB Output is correct
13 Correct 12 ms 14592 KB Output is correct
14 Correct 12 ms 14592 KB Output is correct
15 Correct 12 ms 14720 KB Output is correct
16 Correct 12 ms 14592 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 14 ms 14720 KB Output is correct
24 Correct 14 ms 14720 KB Output is correct
25 Correct 14 ms 14720 KB Output is correct
26 Correct 13 ms 14720 KB Output is correct
27 Correct 14 ms 14720 KB Output is correct
28 Correct 14 ms 14720 KB Output is correct
29 Correct 16 ms 14720 KB Output is correct
30 Correct 13 ms 14848 KB Output is correct
31 Correct 14 ms 14720 KB Output is correct
32 Correct 13 ms 14976 KB Output is correct
33 Correct 13 ms 14848 KB Output is correct
34 Correct 13 ms 14848 KB Output is correct
35 Correct 14 ms 14848 KB Output is correct
36 Correct 13 ms 14848 KB Output is correct
37 Correct 14 ms 14848 KB Output is correct
38 Correct 13 ms 15104 KB Output is correct
39 Correct 14 ms 14720 KB Output is correct
40 Correct 13 ms 14976 KB Output is correct
41 Correct 13 ms 14720 KB Output is correct
42 Correct 15 ms 14976 KB Output is correct
43 Correct 14 ms 14976 KB Output is correct
44 Correct 13 ms 14848 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 14 ms 14592 KB Output is correct
3 Correct 12 ms 14464 KB Output is correct
4 Correct 12 ms 14464 KB Output is correct
5 Correct 12 ms 14464 KB Output is correct
6 Correct 12 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 14464 KB Output is correct
12 Correct 12 ms 14464 KB Output is correct
13 Correct 12 ms 14592 KB Output is correct
14 Correct 12 ms 14592 KB Output is correct
15 Correct 12 ms 14720 KB Output is correct
16 Correct 12 ms 14592 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 14 ms 14720 KB Output is correct
24 Correct 14 ms 14720 KB Output is correct
25 Correct 14 ms 14720 KB Output is correct
26 Correct 13 ms 14720 KB Output is correct
27 Correct 14 ms 14720 KB Output is correct
28 Correct 14 ms 14720 KB Output is correct
29 Correct 16 ms 14720 KB Output is correct
30 Correct 13 ms 14848 KB Output is correct
31 Correct 14 ms 14720 KB Output is correct
32 Correct 13 ms 14976 KB Output is correct
33 Correct 13 ms 14848 KB Output is correct
34 Correct 13 ms 14848 KB Output is correct
35 Correct 14 ms 14848 KB Output is correct
36 Correct 13 ms 14848 KB Output is correct
37 Correct 14 ms 14848 KB Output is correct
38 Correct 13 ms 15104 KB Output is correct
39 Correct 14 ms 14720 KB Output is correct
40 Correct 13 ms 14976 KB Output is correct
41 Correct 13 ms 14720 KB Output is correct
42 Correct 15 ms 14976 KB Output is correct
43 Correct 14 ms 14976 KB Output is correct
44 Correct 13 ms 14848 KB Output is correct
45 Correct 223 ms 45688 KB Output is correct
46 Correct 235 ms 45304 KB Output is correct
47 Correct 228 ms 45376 KB Output is correct
48 Correct 220 ms 45432 KB Output is correct
49 Correct 223 ms 44920 KB Output is correct
50 Correct 225 ms 44920 KB Output is correct
51 Correct 210 ms 44920 KB Output is correct
52 Correct 219 ms 45688 KB Output is correct
53 Correct 226 ms 45476 KB Output is correct
54 Correct 210 ms 66928 KB Output is correct
55 Correct 226 ms 61432 KB Output is correct
56 Correct 234 ms 58100 KB Output is correct
57 Correct 224 ms 55928 KB Output is correct
58 Correct 205 ms 56944 KB Output is correct
59 Correct 209 ms 56964 KB Output is correct
60 Correct 271 ms 78488 KB Output is correct
61 Correct 258 ms 51832 KB Output is correct
62 Correct 309 ms 71232 KB Output is correct
63 Correct 233 ms 49748 KB Output is correct
64 Correct 243 ms 50808 KB Output is correct
65 Correct 311 ms 71664 KB Output is correct
66 Correct 229 ms 50424 KB Output is correct