oj.uz

Submission #668529

# Submission time Handle Problem Language Result Execution time Memory
668529 2022-12-04T03:42:28 Z QwertyPi Fireworks (APIO16_fireworks) C++14
100 / 100
 498 ms 99052 KB 
#include <bits/stdc++.h>
#define int long long
#define fi first
#define se second
using namespace std;
 
const int MAXN = 300011;
int p[MAXN], c[MAXN];
pair<int, int> dp[MAXN];
vector<int> G[MAXN];
int cost[MAXN], w[MAXN];
int ans = 0;
 
struct Firework{
	Firework() = default;
	Firework(int c){
		c0 = c, n = 1;
		v = multiset<int>{c, c};
	}
	int c0 = 0, n = 0;
	multiset<int> v;
} fireworks[MAXN];
 
void operator+= (Firework& a, Firework& b){
	a.c0 += b.c0; a.n += b.n;
	for(auto i : b.v) a.v.insert(i);
	b.v.clear();
}
 
void operator+= (Firework& a, int c){
	a.c0 += c;
	int l1 = *--a.v.end(); a.v.erase(--a.v.end());
	int l2 = *--a.v.end(); a.v.erase(--a.v.end());
	a.v.insert(l1 + c); a.v.insert(l2 + c);
}
 
void f(Firework& a){
	while(a.v.size() > a.n + 1){
		a.v.erase(--a.v.end());
	}
}
 
int rt[MAXN];
void dfs1(int v){
	vector<int> sons;
	for(auto i : G[v]){
		dfs1(i);
		sons.push_back(i);
	}
 
	if(sons.size() == 0){
		rt[v] = v;
		fireworks[v] = Firework(0);
	}else{
		for(auto u : sons){
			fireworks[rt[u]] += c[u];
		}
		for(int i = 1; i < sons.size(); i++){
			if(fireworks[rt[sons[i]]].n > fireworks[rt[sons[0]]].n){
				swap(sons[0], sons[i]);
			}
		}
		for(int i = 1; i < sons.size(); i++){
			fireworks[rt[sons[0]]] += fireworks[rt[sons[i]]];
		}
		rt[v] = rt[sons[0]];
		f(fireworks[rt[v]]);
	}
}
 
int32_t main() {
	int n, m;
	cin >> n >> m;
	for(int i = 2; i <= n + m; i++){
		cin >> p[i] >> c[i];
		G[p[i]].push_back(i);
	}
 
	dfs1(1);
	int ans = fireworks[rt[1]].c0, idx = 0, dx = -fireworks[rt[1]].n;
	for(auto i : fireworks[rt[1]].v){
		ans += dx * (i - idx); idx = i; dx++;
	}
	cout << ans << endl;
}

Compilation message

fireworks.cpp: In function 'void f(Firework&)':
fireworks.cpp:38:19: warning: comparison of integer expressions of different signedness: 'std::multiset<long long int>::size_type' {aka 'long unsigned int'} and 'long long int' [-Wsign-compare]
   38 |  while(a.v.size() > a.n + 1){
      |        ~~~~~~~~~~~^~~~~~~~~
fireworks.cpp: In function 'void dfs1(long long int)':
fireworks.cpp:58:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |   for(int i = 1; i < sons.size(); i++){
      |                  ~~^~~~~~~~~~~~~
fireworks.cpp:63:20: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   63 |   for(int i = 1; i < sons.size(); i++){
      |                  ~~^~~~~~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 26068 KB Output is correct
2 Correct 13 ms 26100 KB Output is correct
3 Correct 13 ms 26152 KB Output is correct
4 Correct 13 ms 26152 KB Output is correct
5 Correct 13 ms 26152 KB Output is correct
6 Correct 13 ms 26152 KB Output is correct
7 Correct 14 ms 26072 KB Output is correct
8 Correct 17 ms 26132 KB Output is correct
9 Correct 14 ms 26068 KB Output is correct
10 Correct 14 ms 26152 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 12 ms 26068 KB Output is correct
2 Correct 13 ms 26120 KB Output is correct
3 Correct 15 ms 26156 KB Output is correct
4 Correct 13 ms 26152 KB Output is correct
5 Correct 14 ms 26148 KB Output is correct
6 Correct 14 ms 26144 KB Output is correct
7 Correct 13 ms 26068 KB Output is correct
8 Correct 17 ms 26164 KB Output is correct
9 Correct 16 ms 26152 KB Output is correct
10 Correct 15 ms 26068 KB Output is correct
11 Correct 15 ms 26068 KB Output is correct
12 Correct 14 ms 26144 KB Output is correct
13 Correct 13 ms 26168 KB Output is correct
14 Correct 14 ms 26148 KB Output is correct
15 Correct 13 ms 26196 KB Output is correct
16 Correct 14 ms 26152 KB Output is correct
17 Correct 13 ms 26152 KB Output is correct
18 Correct 13 ms 26152 KB Output is correct
19 Correct 13 ms 26068 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 26068 KB Output is correct
2 Correct 13 ms 26100 KB Output is correct
3 Correct 13 ms 26152 KB Output is correct
4 Correct 13 ms 26152 KB Output is correct
5 Correct 13 ms 26152 KB Output is correct
6 Correct 13 ms 26152 KB Output is correct
7 Correct 14 ms 26072 KB Output is correct
8 Correct 17 ms 26132 KB Output is correct
9 Correct 14 ms 26068 KB Output is correct
10 Correct 14 ms 26152 KB Output is correct
11 Correct 12 ms 26068 KB Output is correct
12 Correct 13 ms 26120 KB Output is correct
13 Correct 15 ms 26156 KB Output is correct
14 Correct 13 ms 26152 KB Output is correct
15 Correct 14 ms 26148 KB Output is correct
16 Correct 14 ms 26144 KB Output is correct
17 Correct 13 ms 26068 KB Output is correct
18 Correct 17 ms 26164 KB Output is correct
19 Correct 16 ms 26152 KB Output is correct
20 Correct 15 ms 26068 KB Output is correct
21 Correct 15 ms 26068 KB Output is correct
22 Correct 14 ms 26144 KB Output is correct
23 Correct 13 ms 26168 KB Output is correct
24 Correct 14 ms 26148 KB Output is correct
25 Correct 13 ms 26196 KB Output is correct
26 Correct 14 ms 26152 KB Output is correct
27 Correct 13 ms 26152 KB Output is correct
28 Correct 13 ms 26152 KB Output is correct
29 Correct 13 ms 26068 KB Output is correct
30 Correct 13 ms 26156 KB Output is correct
31 Correct 17 ms 26324 KB Output is correct
32 Correct 15 ms 26272 KB Output is correct
33 Correct 19 ms 26312 KB Output is correct
34 Correct 19 ms 26324 KB Output is correct
35 Correct 16 ms 26452 KB Output is correct
36 Correct 18 ms 26420 KB Output is correct
37 Correct 18 ms 26452 KB Output is correct
38 Correct 19 ms 26584 KB Output is correct
39 Correct 18 ms 26544 KB Output is correct
40 Correct 18 ms 27348 KB Output is correct
41 Correct 21 ms 27360 KB Output is correct
42 Correct 18 ms 26460 KB Output is correct
43 Correct 18 ms 26964 KB Output is correct
44 Correct 20 ms 26836 KB Output is correct
45 Correct 18 ms 26800 KB Output is correct
46 Correct 19 ms 26580 KB Output is correct
47 Correct 18 ms 26580 KB Output is correct
48 Correct 17 ms 26580 KB Output is correct
49 Correct 19 ms 26620 KB Output is correct
50 Correct 17 ms 26580 KB Output is correct
51 Correct 18 ms 26580 KB Output is correct
52 Correct 18 ms 26580 KB Output is correct
53 Correct 20 ms 26616 KB Output is correct
54 Correct 19 ms 26808 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 13 ms 26068 KB Output is correct
2 Correct 13 ms 26100 KB Output is correct
3 Correct 13 ms 26152 KB Output is correct
4 Correct 13 ms 26152 KB Output is correct
5 Correct 13 ms 26152 KB Output is correct
6 Correct 13 ms 26152 KB Output is correct
7 Correct 14 ms 26072 KB Output is correct
8 Correct 17 ms 26132 KB Output is correct
9 Correct 14 ms 26068 KB Output is correct
10 Correct 14 ms 26152 KB Output is correct
11 Correct 12 ms 26068 KB Output is correct
12 Correct 13 ms 26120 KB Output is correct
13 Correct 15 ms 26156 KB Output is correct
14 Correct 13 ms 26152 KB Output is correct
15 Correct 14 ms 26148 KB Output is correct
16 Correct 14 ms 26144 KB Output is correct
17 Correct 13 ms 26068 KB Output is correct
18 Correct 17 ms 26164 KB Output is correct
19 Correct 16 ms 26152 KB Output is correct
20 Correct 15 ms 26068 KB Output is correct
21 Correct 15 ms 26068 KB Output is correct
22 Correct 14 ms 26144 KB Output is correct
23 Correct 13 ms 26168 KB Output is correct
24 Correct 14 ms 26148 KB Output is correct
25 Correct 13 ms 26196 KB Output is correct
26 Correct 14 ms 26152 KB Output is correct
27 Correct 13 ms 26152 KB Output is correct
28 Correct 13 ms 26152 KB Output is correct
29 Correct 13 ms 26068 KB Output is correct
30 Correct 13 ms 26156 KB Output is correct
31 Correct 17 ms 26324 KB Output is correct
32 Correct 15 ms 26272 KB Output is correct
33 Correct 19 ms 26312 KB Output is correct
34 Correct 19 ms 26324 KB Output is correct
35 Correct 16 ms 26452 KB Output is correct
36 Correct 18 ms 26420 KB Output is correct
37 Correct 18 ms 26452 KB Output is correct
38 Correct 19 ms 26584 KB Output is correct
39 Correct 18 ms 26544 KB Output is correct
40 Correct 18 ms 27348 KB Output is correct
41 Correct 21 ms 27360 KB Output is correct
42 Correct 18 ms 26460 KB Output is correct
43 Correct 18 ms 26964 KB Output is correct
44 Correct 20 ms 26836 KB Output is correct
45 Correct 18 ms 26800 KB Output is correct
46 Correct 19 ms 26580 KB Output is correct
47 Correct 18 ms 26580 KB Output is correct
48 Correct 17 ms 26580 KB Output is correct
49 Correct 19 ms 26620 KB Output is correct
50 Correct 17 ms 26580 KB Output is correct
51 Correct 18 ms 26580 KB Output is correct
52 Correct 18 ms 26580 KB Output is correct
53 Correct 20 ms 26616 KB Output is correct
54 Correct 19 ms 26808 KB Output is correct
55 Correct 29 ms 27180 KB Output is correct
56 Correct 70 ms 30024 KB Output is correct
57 Correct 110 ms 32776 KB Output is correct
58 Correct 152 ms 34888 KB Output is correct
59 Correct 203 ms 37836 KB Output is correct
60 Correct 265 ms 40520 KB Output is correct
61 Correct 299 ms 42660 KB Output is correct
62 Correct 352 ms 45056 KB Output is correct
63 Correct 404 ms 48340 KB Output is correct
64 Correct 439 ms 48796 KB Output is correct
65 Correct 279 ms 99052 KB Output is correct
66 Correct 288 ms 99048 KB Output is correct
67 Correct 261 ms 47604 KB Output is correct
68 Correct 393 ms 75488 KB Output is correct
69 Correct 405 ms 71936 KB Output is correct
70 Correct 396 ms 71836 KB Output is correct
71 Correct 462 ms 55756 KB Output is correct
72 Correct 498 ms 55580 KB Output is correct
73 Correct 418 ms 54500 KB Output is correct
74 Correct 475 ms 54512 KB Output is correct
75 Correct 451 ms 54084 KB Output is correct
76 Correct 423 ms 54156 KB Output is correct
77 Correct 466 ms 54712 KB Output is correct
78 Correct 483 ms 54576 KB Output is correct
79 Correct 492 ms 69556 KB Output is correct