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Submission #593661

# Submission time Handle Problem Language Result Execution time Memory
593661 2022-07-11T13:24:03 Z 8e7 Fireworks (APIO16_fireworks) C++17
100 / 100
 334 ms 80284 KB 
//Challenge: Accepted
#include <bits/stdc++.h>
using namespace std;
#ifdef zisk
void debug(){cout << endl;}
template<class T,class ... U> void debug(T a, U ... b){cout << a << " ", debug(b...);}
template<class T> void pary(T l, T r) {
	while (l != r) cout << *l << " ", l++;
	cout << endl;
}
#else
#define debug(...) 0
#define pary(...) 0
#endif
#define ll long long
#define maxn 300005
#define pii pair<ll, ll>
#define ff first
#define ss second
#define io ios_base::sync_with_stdio(0);cin.tie(0);
#define se multiset<ll>

vector<pii> adj[maxn];

void merge(se &a, se &b) {
	if (b.size() > a.size()) swap(a, b);
	for (auto i:b) a.insert(i);
	b.clear();
}
ll vy[maxn]; //cost at 0
se dfs(int n) {
	se ret;	
	int chi = 0;
	for (auto [v, e]:adj[n]) {
		chi++;
		se tmp = dfs(v);
		ll pr = *prev(tmp.end());
		tmp.erase(prev(tmp.end()));
		ll pl = *prev(tmp.end());
		tmp.erase(prev(tmp.end()));
		tmp.insert(pl + e), tmp.insert(pr + e);
		vy[n] += vy[v] + e;
		merge(ret, tmp);
	}

	for (int i = 0;i < chi - 1;i++) {
		ret.erase(prev(ret.end()));	
	}
	if (chi == 0) {
		ret.insert(0);
		ret.insert(0);
	}
	return ret;	
}
int main() {
	io
	int n, m;
	cin >> n >> m;
	for (int i = 2;i <= n + m;i++) {
		int pi, ci;
		cin >> pi >> ci;
		adj[pi].push_back({i, ci});
	}
	se s = dfs(1);
	ll ans = vy[1], slope = -s.size() + 1, curx = 0;	
	for (auto i:s) {
		ans += slope * (i - curx);
		curx = i;
		slope++;
	}
	cout << ans << "\n";
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7252 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 3 ms 7368 KB Output is correct
5 Correct 4 ms 7380 KB Output is correct
6 Correct 4 ms 7380 KB Output is correct
7 Correct 4 ms 7380 KB Output is correct
8 Correct 4 ms 7372 KB Output is correct
9 Correct 4 ms 7380 KB Output is correct
10 Correct 4 ms 7252 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 7252 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Correct 4 ms 7252 KB Output is correct
4 Correct 4 ms 7372 KB Output is correct
5 Correct 4 ms 7380 KB Output is correct
6 Correct 4 ms 7380 KB Output is correct
7 Correct 4 ms 7372 KB Output is correct
8 Correct 4 ms 7252 KB Output is correct
9 Correct 4 ms 7252 KB Output is correct
10 Correct 4 ms 7380 KB Output is correct
11 Correct 4 ms 7380 KB Output is correct
12 Correct 4 ms 7380 KB Output is correct
13 Correct 4 ms 7372 KB Output is correct
14 Correct 4 ms 7380 KB Output is correct
15 Correct 4 ms 7380 KB Output is correct
16 Correct 4 ms 7380 KB Output is correct
17 Correct 4 ms 7376 KB Output is correct
18 Correct 4 ms 7380 KB Output is correct
19 Correct 4 ms 7372 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7252 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 3 ms 7368 KB Output is correct
5 Correct 4 ms 7380 KB Output is correct
6 Correct 4 ms 7380 KB Output is correct
7 Correct 4 ms 7380 KB Output is correct
8 Correct 4 ms 7372 KB Output is correct
9 Correct 4 ms 7380 KB Output is correct
10 Correct 4 ms 7252 KB Output is correct
11 Correct 3 ms 7252 KB Output is correct
12 Correct 4 ms 7252 KB Output is correct
13 Correct 4 ms 7252 KB Output is correct
14 Correct 4 ms 7372 KB Output is correct
15 Correct 4 ms 7380 KB Output is correct
16 Correct 4 ms 7380 KB Output is correct
17 Correct 4 ms 7372 KB Output is correct
18 Correct 4 ms 7252 KB Output is correct
19 Correct 4 ms 7252 KB Output is correct
20 Correct 4 ms 7380 KB Output is correct
21 Correct 4 ms 7380 KB Output is correct
22 Correct 4 ms 7380 KB Output is correct
23 Correct 4 ms 7372 KB Output is correct
24 Correct 4 ms 7380 KB Output is correct
25 Correct 4 ms 7380 KB Output is correct
26 Correct 4 ms 7380 KB Output is correct
27 Correct 4 ms 7376 KB Output is correct
28 Correct 4 ms 7380 KB Output is correct
29 Correct 4 ms 7372 KB Output is correct
30 Correct 4 ms 7380 KB Output is correct
31 Correct 5 ms 7380 KB Output is correct
32 Correct 5 ms 7380 KB Output is correct
33 Correct 6 ms 7512 KB Output is correct
34 Correct 6 ms 7560 KB Output is correct
35 Correct 6 ms 7508 KB Output is correct
36 Correct 6 ms 7580 KB Output is correct
37 Correct 6 ms 7636 KB Output is correct
38 Correct 7 ms 7656 KB Output is correct
39 Correct 6 ms 7644 KB Output is correct
40 Correct 6 ms 8532 KB Output is correct
41 Correct 6 ms 8532 KB Output is correct
42 Correct 5 ms 7636 KB Output is correct
43 Correct 6 ms 8148 KB Output is correct
44 Correct 7 ms 8020 KB Output is correct
45 Correct 7 ms 8028 KB Output is correct
46 Correct 7 ms 7720 KB Output is correct
47 Correct 7 ms 7764 KB Output is correct
48 Correct 7 ms 7716 KB Output is correct
49 Correct 7 ms 7768 KB Output is correct
50 Correct 6 ms 7764 KB Output is correct
51 Correct 6 ms 7764 KB Output is correct
52 Correct 7 ms 7764 KB Output is correct
53 Correct 7 ms 7764 KB Output is correct
54 Correct 7 ms 7892 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7252 KB Output is correct
2 Correct 4 ms 7252 KB Output is correct
3 Correct 4 ms 7380 KB Output is correct
4 Correct 3 ms 7368 KB Output is correct
5 Correct 4 ms 7380 KB Output is correct
6 Correct 4 ms 7380 KB Output is correct
7 Correct 4 ms 7380 KB Output is correct
8 Correct 4 ms 7372 KB Output is correct
9 Correct 4 ms 7380 KB Output is correct
10 Correct 4 ms 7252 KB Output is correct
11 Correct 3 ms 7252 KB Output is correct
12 Correct 4 ms 7252 KB Output is correct
13 Correct 4 ms 7252 KB Output is correct
14 Correct 4 ms 7372 KB Output is correct
15 Correct 4 ms 7380 KB Output is correct
16 Correct 4 ms 7380 KB Output is correct
17 Correct 4 ms 7372 KB Output is correct
18 Correct 4 ms 7252 KB Output is correct
19 Correct 4 ms 7252 KB Output is correct
20 Correct 4 ms 7380 KB Output is correct
21 Correct 4 ms 7380 KB Output is correct
22 Correct 4 ms 7380 KB Output is correct
23 Correct 4 ms 7372 KB Output is correct
24 Correct 4 ms 7380 KB Output is correct
25 Correct 4 ms 7380 KB Output is correct
26 Correct 4 ms 7380 KB Output is correct
27 Correct 4 ms 7376 KB Output is correct
28 Correct 4 ms 7380 KB Output is correct
29 Correct 4 ms 7372 KB Output is correct
30 Correct 4 ms 7380 KB Output is correct
31 Correct 5 ms 7380 KB Output is correct
32 Correct 5 ms 7380 KB Output is correct
33 Correct 6 ms 7512 KB Output is correct
34 Correct 6 ms 7560 KB Output is correct
35 Correct 6 ms 7508 KB Output is correct
36 Correct 6 ms 7580 KB Output is correct
37 Correct 6 ms 7636 KB Output is correct
38 Correct 7 ms 7656 KB Output is correct
39 Correct 6 ms 7644 KB Output is correct
40 Correct 6 ms 8532 KB Output is correct
41 Correct 6 ms 8532 KB Output is correct
42 Correct 5 ms 7636 KB Output is correct
43 Correct 6 ms 8148 KB Output is correct
44 Correct 7 ms 8020 KB Output is correct
45 Correct 7 ms 8028 KB Output is correct
46 Correct 7 ms 7720 KB Output is correct
47 Correct 7 ms 7764 KB Output is correct
48 Correct 7 ms 7716 KB Output is correct
49 Correct 7 ms 7768 KB Output is correct
50 Correct 6 ms 7764 KB Output is correct
51 Correct 6 ms 7764 KB Output is correct
52 Correct 7 ms 7764 KB Output is correct
53 Correct 7 ms 7764 KB Output is correct
54 Correct 7 ms 7892 KB Output is correct
55 Correct 11 ms 8268 KB Output is correct
56 Correct 34 ms 10580 KB Output is correct
57 Correct 56 ms 12904 KB Output is correct
58 Correct 76 ms 14724 KB Output is correct
59 Correct 114 ms 17312 KB Output is correct
60 Correct 135 ms 19376 KB Output is correct
61 Correct 152 ms 21320 KB Output is correct
62 Correct 172 ms 23296 KB Output is correct
63 Correct 209 ms 26032 KB Output is correct
64 Correct 225 ms 26316 KB Output is correct
65 Correct 133 ms 80284 KB Output is correct
66 Correct 131 ms 80204 KB Output is correct
67 Correct 113 ms 24164 KB Output is correct
68 Correct 188 ms 55464 KB Output is correct
69 Correct 227 ms 51488 KB Output is correct
70 Correct 217 ms 51532 KB Output is correct
71 Correct 267 ms 32656 KB Output is correct
72 Correct 280 ms 32808 KB Output is correct
73 Correct 285 ms 31336 KB Output is correct
74 Correct 302 ms 31624 KB Output is correct
75 Correct 275 ms 30612 KB Output is correct
76 Correct 281 ms 30744 KB Output is correct
77 Correct 313 ms 30608 KB Output is correct
78 Correct 301 ms 31024 KB Output is correct
79 Correct 334 ms 43700 KB Output is correct