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Submission #367407

# Submission time Handle Problem Language Result Execution time Memory
367407 2021-02-17T08:16:42 Z alireza_kaviani Fireworks (APIO16_fireworks) C++11
100 / 100
 282 ms 71020 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<ll, ll> pll;
typedef pair<int, int> pii;

#define all(x)						(x).begin(),(x).end()
#define X							first
#define Y							second
#define sep							' '
#define endl						'\n'
#define SZ(x)						ll(x.size())

const ll MAXN = 3e5 + 10;
const ll LOG = 22;
const ll INF = 8e18;
const ll MOD = 1e9 + 7; //998244353; //1e9 + 9;

ll n , m , ans , cur , C[MAXN];
vector<int> adj[MAXN];
priority_queue<ll> pq[MAXN];

void DFS(int v){
	for(int u : adj[v]){
		DFS(u);
		if(SZ(pq[u]) > SZ(pq[v]))	pq[v].swap(pq[u]);
		while(SZ(pq[u])){
			pq[v].push(pq[u].top());
			pq[u].pop();
		}
	}
	ll x = 0 , y = 0;
	for(int u : adj[v]){
		x = pq[v].top();
		pq[v].pop();
	}
	if(SZ(pq[v])){
		y = pq[v].top();
		pq[v].pop();
	}
	pq[v].push(y + C[v]);
	pq[v].push(x + C[v]);
}

int main() {
    ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);

	cin >> n >> m; n += m;
	for(int i = 2 ; i <= n ; i++){
		int p; cin >> p >> C[i];
		adj[p].push_back(i); ans += C[i];
	}
	DFS(1);
	pq[1].push(0);
	while(SZ(pq[1]) > 1){
		ll x = pq[1].top(); pq[1].pop();
//		cout << x << endl;
		ans -= cur * (x - pq[1].top());
		cur++;
	}
//	cout << pq[1].top() << endl;
	cout << ans << endl;
	
    return 0;
}
/*

*/

Compilation message

fireworks.cpp: In function 'void DFS(int)':
fireworks.cpp:34:10: warning: unused variable 'u' [-Wunused-variable]
   34 |  for(int u : adj[v]){
      |          ^

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 16748 KB Output is correct
2 Correct 12 ms 16748 KB Output is correct
3 Correct 11 ms 16748 KB Output is correct
4 Correct 11 ms 16768 KB Output is correct
5 Correct 11 ms 16876 KB Output is correct
6 Correct 11 ms 16748 KB Output is correct
7 Correct 10 ms 16748 KB Output is correct
8 Correct 10 ms 16748 KB Output is correct
9 Correct 11 ms 16748 KB Output is correct
10 Correct 11 ms 16748 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 16768 KB Output is correct
2 Correct 11 ms 16748 KB Output is correct
3 Correct 11 ms 16748 KB Output is correct
4 Correct 11 ms 16748 KB Output is correct
5 Correct 11 ms 16748 KB Output is correct
6 Correct 11 ms 16748 KB Output is correct
7 Correct 11 ms 16748 KB Output is correct
8 Correct 11 ms 16748 KB Output is correct
9 Correct 11 ms 16748 KB Output is correct
10 Correct 11 ms 16748 KB Output is correct
11 Correct 11 ms 16748 KB Output is correct
12 Correct 11 ms 16748 KB Output is correct
13 Correct 11 ms 16876 KB Output is correct
14 Correct 11 ms 16876 KB Output is correct
15 Correct 11 ms 16748 KB Output is correct
16 Correct 11 ms 16748 KB Output is correct
17 Correct 11 ms 16748 KB Output is correct
18 Correct 11 ms 16876 KB Output is correct
19 Correct 11 ms 16748 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 16748 KB Output is correct
2 Correct 12 ms 16748 KB Output is correct
3 Correct 11 ms 16748 KB Output is correct
4 Correct 11 ms 16768 KB Output is correct
5 Correct 11 ms 16876 KB Output is correct
6 Correct 11 ms 16748 KB Output is correct
7 Correct 10 ms 16748 KB Output is correct
8 Correct 10 ms 16748 KB Output is correct
9 Correct 11 ms 16748 KB Output is correct
10 Correct 11 ms 16748 KB Output is correct
11 Correct 11 ms 16768 KB Output is correct
12 Correct 11 ms 16748 KB Output is correct
13 Correct 11 ms 16748 KB Output is correct
14 Correct 11 ms 16748 KB Output is correct
15 Correct 11 ms 16748 KB Output is correct
16 Correct 11 ms 16748 KB Output is correct
17 Correct 11 ms 16748 KB Output is correct
18 Correct 11 ms 16748 KB Output is correct
19 Correct 11 ms 16748 KB Output is correct
20 Correct 11 ms 16748 KB Output is correct
21 Correct 11 ms 16748 KB Output is correct
22 Correct 11 ms 16748 KB Output is correct
23 Correct 11 ms 16876 KB Output is correct
24 Correct 11 ms 16876 KB Output is correct
25 Correct 11 ms 16748 KB Output is correct
26 Correct 11 ms 16748 KB Output is correct
27 Correct 11 ms 16748 KB Output is correct
28 Correct 11 ms 16876 KB Output is correct
29 Correct 11 ms 16748 KB Output is correct
30 Correct 11 ms 16748 KB Output is correct
31 Correct 11 ms 16876 KB Output is correct
32 Correct 11 ms 16876 KB Output is correct
33 Correct 12 ms 16876 KB Output is correct
34 Correct 12 ms 17004 KB Output is correct
35 Correct 13 ms 17004 KB Output is correct
36 Correct 15 ms 17024 KB Output is correct
37 Correct 13 ms 17132 KB Output is correct
38 Correct 14 ms 17132 KB Output is correct
39 Correct 15 ms 17132 KB Output is correct
40 Correct 13 ms 17644 KB Output is correct
41 Correct 12 ms 17644 KB Output is correct
42 Correct 12 ms 17004 KB Output is correct
43 Correct 13 ms 17388 KB Output is correct
44 Correct 13 ms 17260 KB Output is correct
45 Correct 13 ms 17260 KB Output is correct
46 Correct 14 ms 17260 KB Output is correct
47 Correct 14 ms 17260 KB Output is correct
48 Correct 13 ms 17132 KB Output is correct
49 Correct 14 ms 17132 KB Output is correct
50 Correct 13 ms 17132 KB Output is correct
51 Correct 13 ms 17132 KB Output is correct
52 Correct 13 ms 17132 KB Output is correct
53 Correct 16 ms 17132 KB Output is correct
54 Correct 14 ms 17132 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 11 ms 16748 KB Output is correct
2 Correct 12 ms 16748 KB Output is correct
3 Correct 11 ms 16748 KB Output is correct
4 Correct 11 ms 16768 KB Output is correct
5 Correct 11 ms 16876 KB Output is correct
6 Correct 11 ms 16748 KB Output is correct
7 Correct 10 ms 16748 KB Output is correct
8 Correct 10 ms 16748 KB Output is correct
9 Correct 11 ms 16748 KB Output is correct
10 Correct 11 ms 16748 KB Output is correct
11 Correct 11 ms 16768 KB Output is correct
12 Correct 11 ms 16748 KB Output is correct
13 Correct 11 ms 16748 KB Output is correct
14 Correct 11 ms 16748 KB Output is correct
15 Correct 11 ms 16748 KB Output is correct
16 Correct 11 ms 16748 KB Output is correct
17 Correct 11 ms 16748 KB Output is correct
18 Correct 11 ms 16748 KB Output is correct
19 Correct 11 ms 16748 KB Output is correct
20 Correct 11 ms 16748 KB Output is correct
21 Correct 11 ms 16748 KB Output is correct
22 Correct 11 ms 16748 KB Output is correct
23 Correct 11 ms 16876 KB Output is correct
24 Correct 11 ms 16876 KB Output is correct
25 Correct 11 ms 16748 KB Output is correct
26 Correct 11 ms 16748 KB Output is correct
27 Correct 11 ms 16748 KB Output is correct
28 Correct 11 ms 16876 KB Output is correct
29 Correct 11 ms 16748 KB Output is correct
30 Correct 11 ms 16748 KB Output is correct
31 Correct 11 ms 16876 KB Output is correct
32 Correct 11 ms 16876 KB Output is correct
33 Correct 12 ms 16876 KB Output is correct
34 Correct 12 ms 17004 KB Output is correct
35 Correct 13 ms 17004 KB Output is correct
36 Correct 15 ms 17024 KB Output is correct
37 Correct 13 ms 17132 KB Output is correct
38 Correct 14 ms 17132 KB Output is correct
39 Correct 15 ms 17132 KB Output is correct
40 Correct 13 ms 17644 KB Output is correct
41 Correct 12 ms 17644 KB Output is correct
42 Correct 12 ms 17004 KB Output is correct
43 Correct 13 ms 17388 KB Output is correct
44 Correct 13 ms 17260 KB Output is correct
45 Correct 13 ms 17260 KB Output is correct
46 Correct 14 ms 17260 KB Output is correct
47 Correct 14 ms 17260 KB Output is correct
48 Correct 13 ms 17132 KB Output is correct
49 Correct 14 ms 17132 KB Output is correct
50 Correct 13 ms 17132 KB Output is correct
51 Correct 13 ms 17132 KB Output is correct
52 Correct 13 ms 17132 KB Output is correct
53 Correct 16 ms 17132 KB Output is correct
54 Correct 14 ms 17132 KB Output is correct
55 Correct 18 ms 17772 KB Output is correct
56 Correct 44 ms 20332 KB Output is correct
57 Correct 72 ms 22764 KB Output is correct
58 Correct 101 ms 24292 KB Output is correct
59 Correct 133 ms 26852 KB Output is correct
60 Correct 175 ms 29412 KB Output is correct
61 Correct 198 ms 31480 KB Output is correct
62 Correct 217 ms 32848 KB Output is correct
63 Correct 282 ms 36104 KB Output is correct
64 Correct 282 ms 36832 KB Output is correct
65 Correct 124 ms 71020 KB Output is correct
66 Correct 153 ms 71020 KB Output is correct
67 Correct 136 ms 33644 KB Output is correct
68 Correct 187 ms 53472 KB Output is correct
69 Correct 219 ms 50400 KB Output is correct
70 Correct 221 ms 50528 KB Output is correct
71 Correct 237 ms 45784 KB Output is correct
72 Correct 233 ms 46300 KB Output is correct
73 Correct 215 ms 42456 KB Output is correct
74 Correct 225 ms 42584 KB Output is correct
75 Correct 214 ms 41436 KB Output is correct
76 Correct 214 ms 41564 KB Output is correct
77 Correct 224 ms 41204 KB Output is correct
78 Correct 219 ms 39132 KB Output is correct
79 Correct 212 ms 40200 KB Output is correct