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Submission #246828

# Submission time Handle Problem Language Result Execution time Memory
246828 2020-07-10T11:48:43 Z vioalbert Fireworks (APIO16_fireworks) C++14
100 / 100
 286 ms 71032 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

const int N = 3e5+5;
struct slope {
	ll m, c;
	priority_queue<ll> pq;
	slope& operator+=(slope& ot) {
		m += ot.m, c += ot.c;
		if(pq.size() < ot.pq.size()) swap(pq, ot.pq);
		while(!ot.pq.empty())
			pq.push(ot.pq.top()), ot.pq.pop();
		return *this;
	}
};
slope f[N];
ll cost[N];
int n, m;
vector<int> adj[N];


void read() {
	cin >> n >> m;
	for(int i = 2; i <= n+m; i++) {
		int p; cin >> p >> cost[i];
		adj[p].push_back(i);
	}
}

void dfs(int u) {
	if(adj[u].empty()) {
		f[u].m = 1, f[u].c = -cost[u];
		f[u].pq.push(cost[u]);
		f[u].pq.push(cost[u]);
		return;
	}

	for(int v : adj[u]) {
		dfs(v);
		f[u] += f[v];
	}

	//reducing largest slope
	while(f[u].m > 1) {
		f[u].m -= 1;
		f[u].c += f[u].pq.top();
		f[u].pq.pop();
	}

	//adding parent edge
	ll x = f[u].pq.top() + cost[u]; f[u].pq.pop();
	ll y = f[u].pq.top() + cost[u]; f[u].pq.pop();
	f[u].pq.push(x); f[u].pq.push(y);
	f[u].c -= cost[u];
}

void solve() {
	dfs(1);
	ll ans = f[1].m * f[1].pq.top() + f[1].c;
	cout << ans << '\n';
}

int main() {
	ios::sync_with_stdio(0); cin.tie(0);
	read();
	solve();
	return 0;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 21504 KB Output is correct
2 Correct 16 ms 21504 KB Output is correct
3 Correct 17 ms 21504 KB Output is correct
4 Correct 17 ms 21504 KB Output is correct
5 Correct 17 ms 21504 KB Output is correct
6 Correct 17 ms 21480 KB Output is correct
7 Correct 17 ms 21504 KB Output is correct
8 Correct 16 ms 21504 KB Output is correct
9 Correct 16 ms 21504 KB Output is correct
10 Correct 16 ms 21504 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 17 ms 21504 KB Output is correct
2 Correct 17 ms 21504 KB Output is correct
3 Correct 17 ms 21504 KB Output is correct
4 Correct 17 ms 21504 KB Output is correct
5 Correct 17 ms 21504 KB Output is correct
6 Correct 17 ms 21504 KB Output is correct
7 Correct 16 ms 21504 KB Output is correct
8 Correct 16 ms 21504 KB Output is correct
9 Correct 17 ms 21504 KB Output is correct
10 Correct 16 ms 21504 KB Output is correct
11 Correct 17 ms 21504 KB Output is correct
12 Correct 16 ms 21504 KB Output is correct
13 Correct 17 ms 21524 KB Output is correct
14 Correct 17 ms 21632 KB Output is correct
15 Correct 17 ms 21504 KB Output is correct
16 Correct 17 ms 21504 KB Output is correct
17 Correct 16 ms 21504 KB Output is correct
18 Correct 16 ms 21504 KB Output is correct
19 Correct 22 ms 21504 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 21504 KB Output is correct
2 Correct 16 ms 21504 KB Output is correct
3 Correct 17 ms 21504 KB Output is correct
4 Correct 17 ms 21504 KB Output is correct
5 Correct 17 ms 21504 KB Output is correct
6 Correct 17 ms 21480 KB Output is correct
7 Correct 17 ms 21504 KB Output is correct
8 Correct 16 ms 21504 KB Output is correct
9 Correct 16 ms 21504 KB Output is correct
10 Correct 16 ms 21504 KB Output is correct
11 Correct 17 ms 21504 KB Output is correct
12 Correct 17 ms 21504 KB Output is correct
13 Correct 17 ms 21504 KB Output is correct
14 Correct 17 ms 21504 KB Output is correct
15 Correct 17 ms 21504 KB Output is correct
16 Correct 17 ms 21504 KB Output is correct
17 Correct 16 ms 21504 KB Output is correct
18 Correct 16 ms 21504 KB Output is correct
19 Correct 17 ms 21504 KB Output is correct
20 Correct 16 ms 21504 KB Output is correct
21 Correct 17 ms 21504 KB Output is correct
22 Correct 16 ms 21504 KB Output is correct
23 Correct 17 ms 21524 KB Output is correct
24 Correct 17 ms 21632 KB Output is correct
25 Correct 17 ms 21504 KB Output is correct
26 Correct 17 ms 21504 KB Output is correct
27 Correct 16 ms 21504 KB Output is correct
28 Correct 16 ms 21504 KB Output is correct
29 Correct 22 ms 21504 KB Output is correct
30 Correct 17 ms 21504 KB Output is correct
31 Correct 17 ms 21632 KB Output is correct
32 Correct 19 ms 21632 KB Output is correct
33 Correct 18 ms 21632 KB Output is correct
34 Correct 18 ms 21760 KB Output is correct
35 Correct 23 ms 21760 KB Output is correct
36 Correct 19 ms 21760 KB Output is correct
37 Correct 20 ms 21760 KB Output is correct
38 Correct 20 ms 21760 KB Output is correct
39 Correct 20 ms 21888 KB Output is correct
40 Correct 19 ms 22272 KB Output is correct
41 Correct 19 ms 22272 KB Output is correct
42 Correct 18 ms 21760 KB Output is correct
43 Correct 25 ms 22092 KB Output is correct
44 Correct 19 ms 22016 KB Output is correct
45 Correct 19 ms 22016 KB Output is correct
46 Correct 19 ms 21888 KB Output is correct
47 Correct 20 ms 21888 KB Output is correct
48 Correct 19 ms 21888 KB Output is correct
49 Correct 19 ms 21888 KB Output is correct
50 Correct 19 ms 21760 KB Output is correct
51 Correct 19 ms 21760 KB Output is correct
52 Correct 19 ms 21760 KB Output is correct
53 Correct 20 ms 21888 KB Output is correct
54 Correct 20 ms 21888 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 21504 KB Output is correct
2 Correct 16 ms 21504 KB Output is correct
3 Correct 17 ms 21504 KB Output is correct
4 Correct 17 ms 21504 KB Output is correct
5 Correct 17 ms 21504 KB Output is correct
6 Correct 17 ms 21480 KB Output is correct
7 Correct 17 ms 21504 KB Output is correct
8 Correct 16 ms 21504 KB Output is correct
9 Correct 16 ms 21504 KB Output is correct
10 Correct 16 ms 21504 KB Output is correct
11 Correct 17 ms 21504 KB Output is correct
12 Correct 17 ms 21504 KB Output is correct
13 Correct 17 ms 21504 KB Output is correct
14 Correct 17 ms 21504 KB Output is correct
15 Correct 17 ms 21504 KB Output is correct
16 Correct 17 ms 21504 KB Output is correct
17 Correct 16 ms 21504 KB Output is correct
18 Correct 16 ms 21504 KB Output is correct
19 Correct 17 ms 21504 KB Output is correct
20 Correct 16 ms 21504 KB Output is correct
21 Correct 17 ms 21504 KB Output is correct
22 Correct 16 ms 21504 KB Output is correct
23 Correct 17 ms 21524 KB Output is correct
24 Correct 17 ms 21632 KB Output is correct
25 Correct 17 ms 21504 KB Output is correct
26 Correct 17 ms 21504 KB Output is correct
27 Correct 16 ms 21504 KB Output is correct
28 Correct 16 ms 21504 KB Output is correct
29 Correct 22 ms 21504 KB Output is correct
30 Correct 17 ms 21504 KB Output is correct
31 Correct 17 ms 21632 KB Output is correct
32 Correct 19 ms 21632 KB Output is correct
33 Correct 18 ms 21632 KB Output is correct
34 Correct 18 ms 21760 KB Output is correct
35 Correct 23 ms 21760 KB Output is correct
36 Correct 19 ms 21760 KB Output is correct
37 Correct 20 ms 21760 KB Output is correct
38 Correct 20 ms 21760 KB Output is correct
39 Correct 20 ms 21888 KB Output is correct
40 Correct 19 ms 22272 KB Output is correct
41 Correct 19 ms 22272 KB Output is correct
42 Correct 18 ms 21760 KB Output is correct
43 Correct 25 ms 22092 KB Output is correct
44 Correct 19 ms 22016 KB Output is correct
45 Correct 19 ms 22016 KB Output is correct
46 Correct 19 ms 21888 KB Output is correct
47 Correct 20 ms 21888 KB Output is correct
48 Correct 19 ms 21888 KB Output is correct
49 Correct 19 ms 21888 KB Output is correct
50 Correct 19 ms 21760 KB Output is correct
51 Correct 19 ms 21760 KB Output is correct
52 Correct 19 ms 21760 KB Output is correct
53 Correct 20 ms 21888 KB Output is correct
54 Correct 20 ms 21888 KB Output is correct
55 Correct 24 ms 22400 KB Output is correct
56 Correct 52 ms 24984 KB Output is correct
57 Correct 81 ms 27384 KB Output is correct
58 Correct 106 ms 29040 KB Output is correct
59 Correct 142 ms 31680 KB Output is correct
60 Correct 183 ms 34028 KB Output is correct
61 Correct 206 ms 36208 KB Output is correct
62 Correct 225 ms 37616 KB Output is correct
63 Correct 274 ms 40556 KB Output is correct
64 Correct 286 ms 41400 KB Output is correct
65 Correct 149 ms 71032 KB Output is correct
66 Correct 147 ms 70960 KB Output is correct
67 Correct 158 ms 38136 KB Output is correct
68 Correct 198 ms 55916 KB Output is correct
69 Correct 235 ms 53140 KB Output is correct
70 Correct 223 ms 53132 KB Output is correct
71 Correct 228 ms 50660 KB Output is correct
72 Correct 226 ms 51300 KB Output is correct
73 Correct 185 ms 47200 KB Output is correct
74 Correct 189 ms 47200 KB Output is correct
75 Correct 198 ms 46332 KB Output is correct
76 Correct 192 ms 46180 KB Output is correct
77 Correct 200 ms 45800 KB Output is correct
78 Correct 203 ms 43828 KB Output is correct
79 Correct 184 ms 44900 KB Output is correct