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Submission #1002169

# Submission time Handle Problem Language Result Execution time Memory
1002169 2024-06-19T10:39:19 Z shenfe1 Fireworks (APIO16_fireworks) C++17
100 / 100
 285 ms 183820 KB 
#include <bits/stdc++.h>

#pragma GCC optimize("03")
#pragma GCC target("avx2")

#define ll long long
#define lb lower_bound
#define ub upper_bound
#define pii pair<int,int>
#define F first
#define S second
#define ld long double
#define pb push_back
#define all(v) v.begin(),v.end()
#define in insert
#define sz(s) (int)s.size()
#define int ll
#define ppb pop_back
#define mem(a,i) memset(a,i,sizeof(a))

using namespace std;
 
const int MAX=2e6+100;
const ll inf=2e18;
const int mod=1e9+7;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

int n,m;
vector<int> g[MAX];
int a[MAX];
multiset<int> st[MAX];
int slope[MAX];

void mrg(int v,int to){
	slope[v]+=slope[to];
	if(sz(st[v])<sz(st[to]))swap(st[v],st[to]);
	for(int x:st[to])st[v].in(x);
	st[to].clear();
}

void dfs(int v){
	if(g[v].empty()){
		slope[v]=-1;
		st[v].in(a[v]);
		st[v].in(a[v]);
		return;
	}
	for(auto to:g[v]){
		dfs(to);
		mrg(v,to);
	}
	while(sz(st[v])+slope[v]>1){
		st[v].erase(--st[v].end());
	}
	int A=*(--st[v].end());
	st[v].erase(--st[v].end());
	int B=*(--st[v].end());
	st[v].erase(--st[v].end());
	A+=a[v],B+=a[v];
	st[v].in(A);st[v].in(B);
}

void solve(){
	cin>>n>>m;
	int ans=0;
	for(int i=2;i<=n+m;i++){
		int p;
		cin>>p>>a[i];
		g[p].pb(i);
		ans+=a[i];
	}
	dfs(1);
	int prev=0;
	// cout<<ans<<"\n";
	// slope[1]++;
	for(int i:st[1]){
		// cout<<i<<" ";
		ans+=slope[1]*(i-prev);
		prev=i;
		// cout<<i-prev<<" "<<slope[1]<<"\n";
		slope[1]++;
	}
	cout<<ans;
}

signed main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);

	int t=1;
	// cin>>t;
	while(t--)solve();
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 141148 KB Output is correct
2 Correct 52 ms 141140 KB Output is correct
3 Correct 55 ms 141396 KB Output is correct
4 Correct 53 ms 141144 KB Output is correct
5 Correct 65 ms 141312 KB Output is correct
6 Correct 59 ms 141136 KB Output is correct
7 Correct 57 ms 141136 KB Output is correct
8 Correct 48 ms 141236 KB Output is correct
9 Correct 47 ms 141144 KB Output is correct
10 Correct 49 ms 141144 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 141144 KB Output is correct
2 Correct 55 ms 141140 KB Output is correct
3 Correct 60 ms 141228 KB Output is correct
4 Correct 51 ms 141136 KB Output is correct
5 Correct 50 ms 141148 KB Output is correct
6 Correct 52 ms 141360 KB Output is correct
7 Correct 49 ms 141148 KB Output is correct
8 Correct 50 ms 141136 KB Output is correct
9 Correct 65 ms 141172 KB Output is correct
10 Correct 48 ms 141396 KB Output is correct
11 Correct 50 ms 141140 KB Output is correct
12 Correct 50 ms 141136 KB Output is correct
13 Correct 52 ms 141140 KB Output is correct
14 Correct 48 ms 141396 KB Output is correct
15 Correct 58 ms 141140 KB Output is correct
16 Correct 49 ms 141136 KB Output is correct
17 Correct 47 ms 141216 KB Output is correct
18 Correct 58 ms 141140 KB Output is correct
19 Correct 49 ms 141136 KB Output is correct

Subtask #3
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 141148 KB Output is correct
2 Correct 52 ms 141140 KB Output is correct
3 Correct 55 ms 141396 KB Output is correct
4 Correct 53 ms 141144 KB Output is correct
5 Correct 65 ms 141312 KB Output is correct
6 Correct 59 ms 141136 KB Output is correct
7 Correct 57 ms 141136 KB Output is correct
8 Correct 48 ms 141236 KB Output is correct
9 Correct 47 ms 141144 KB Output is correct
10 Correct 49 ms 141144 KB Output is correct
11 Correct 51 ms 141144 KB Output is correct
12 Correct 55 ms 141140 KB Output is correct
13 Correct 60 ms 141228 KB Output is correct
14 Correct 51 ms 141136 KB Output is correct
15 Correct 50 ms 141148 KB Output is correct
16 Correct 52 ms 141360 KB Output is correct
17 Correct 49 ms 141148 KB Output is correct
18 Correct 50 ms 141136 KB Output is correct
19 Correct 65 ms 141172 KB Output is correct
20 Correct 48 ms 141396 KB Output is correct
21 Correct 50 ms 141140 KB Output is correct
22 Correct 50 ms 141136 KB Output is correct
23 Correct 52 ms 141140 KB Output is correct
24 Correct 48 ms 141396 KB Output is correct
25 Correct 58 ms 141140 KB Output is correct
26 Correct 49 ms 141136 KB Output is correct
27 Correct 47 ms 141216 KB Output is correct
28 Correct 58 ms 141140 KB Output is correct
29 Correct 49 ms 141136 KB Output is correct
30 Correct 52 ms 141160 KB Output is correct
31 Correct 50 ms 141284 KB Output is correct
32 Correct 51 ms 141392 KB Output is correct
33 Correct 52 ms 141392 KB Output is correct
34 Correct 49 ms 141392 KB Output is correct
35 Correct 53 ms 141396 KB Output is correct
36 Correct 53 ms 141392 KB Output is correct
37 Correct 54 ms 141464 KB Output is correct
38 Correct 50 ms 141652 KB Output is correct
39 Correct 48 ms 141416 KB Output is correct
40 Correct 48 ms 141908 KB Output is correct
41 Correct 58 ms 141836 KB Output is correct
42 Correct 47 ms 141396 KB Output is correct
43 Correct 52 ms 141700 KB Output is correct
44 Correct 57 ms 141688 KB Output is correct
45 Correct 52 ms 141652 KB Output is correct
46 Correct 51 ms 141612 KB Output is correct
47 Correct 51 ms 141584 KB Output is correct
48 Correct 53 ms 141668 KB Output is correct
49 Correct 54 ms 141648 KB Output is correct
50 Correct 51 ms 141652 KB Output is correct
51 Correct 49 ms 141648 KB Output is correct
52 Correct 53 ms 141684 KB Output is correct
53 Correct 50 ms 141692 KB Output is correct
54 Correct 53 ms 141904 KB Output is correct

Subtask #4
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 141148 KB Output is correct
2 Correct 52 ms 141140 KB Output is correct
3 Correct 55 ms 141396 KB Output is correct
4 Correct 53 ms 141144 KB Output is correct
5 Correct 65 ms 141312 KB Output is correct
6 Correct 59 ms 141136 KB Output is correct
7 Correct 57 ms 141136 KB Output is correct
8 Correct 48 ms 141236 KB Output is correct
9 Correct 47 ms 141144 KB Output is correct
10 Correct 49 ms 141144 KB Output is correct
11 Correct 51 ms 141144 KB Output is correct
12 Correct 55 ms 141140 KB Output is correct
13 Correct 60 ms 141228 KB Output is correct
14 Correct 51 ms 141136 KB Output is correct
15 Correct 50 ms 141148 KB Output is correct
16 Correct 52 ms 141360 KB Output is correct
17 Correct 49 ms 141148 KB Output is correct
18 Correct 50 ms 141136 KB Output is correct
19 Correct 65 ms 141172 KB Output is correct
20 Correct 48 ms 141396 KB Output is correct
21 Correct 50 ms 141140 KB Output is correct
22 Correct 50 ms 141136 KB Output is correct
23 Correct 52 ms 141140 KB Output is correct
24 Correct 48 ms 141396 KB Output is correct
25 Correct 58 ms 141140 KB Output is correct
26 Correct 49 ms 141136 KB Output is correct
27 Correct 47 ms 141216 KB Output is correct
28 Correct 58 ms 141140 KB Output is correct
29 Correct 49 ms 141136 KB Output is correct
30 Correct 52 ms 141160 KB Output is correct
31 Correct 50 ms 141284 KB Output is correct
32 Correct 51 ms 141392 KB Output is correct
33 Correct 52 ms 141392 KB Output is correct
34 Correct 49 ms 141392 KB Output is correct
35 Correct 53 ms 141396 KB Output is correct
36 Correct 53 ms 141392 KB Output is correct
37 Correct 54 ms 141464 KB Output is correct
38 Correct 50 ms 141652 KB Output is correct
39 Correct 48 ms 141416 KB Output is correct
40 Correct 48 ms 141908 KB Output is correct
41 Correct 58 ms 141836 KB Output is correct
42 Correct 47 ms 141396 KB Output is correct
43 Correct 52 ms 141700 KB Output is correct
44 Correct 57 ms 141688 KB Output is correct
45 Correct 52 ms 141652 KB Output is correct
46 Correct 51 ms 141612 KB Output is correct
47 Correct 51 ms 141584 KB Output is correct
48 Correct 53 ms 141668 KB Output is correct
49 Correct 54 ms 141648 KB Output is correct
50 Correct 51 ms 141652 KB Output is correct
51 Correct 49 ms 141648 KB Output is correct
52 Correct 53 ms 141684 KB Output is correct
53 Correct 50 ms 141692 KB Output is correct
54 Correct 53 ms 141904 KB Output is correct
55 Correct 66 ms 142116 KB Output is correct
56 Correct 74 ms 144584 KB Output is correct
57 Correct 87 ms 146976 KB Output is correct
58 Correct 109 ms 148440 KB Output is correct
59 Correct 122 ms 150864 KB Output is correct
60 Correct 133 ms 152920 KB Output is correct
61 Correct 168 ms 154708 KB Output is correct
62 Correct 202 ms 158284 KB Output is correct
63 Correct 214 ms 161320 KB Output is correct
64 Correct 213 ms 161620 KB Output is correct
65 Correct 135 ms 183820 KB Output is correct
66 Correct 132 ms 183584 KB Output is correct
67 Correct 156 ms 160336 KB Output is correct
68 Correct 167 ms 174160 KB Output is correct
69 Correct 207 ms 172884 KB Output is correct
70 Correct 198 ms 172880 KB Output is correct
71 Correct 240 ms 167768 KB Output is correct
72 Correct 267 ms 168020 KB Output is correct
73 Correct 254 ms 167092 KB Output is correct
74 Correct 242 ms 167248 KB Output is correct
75 Correct 234 ms 166684 KB Output is correct
76 Correct 217 ms 166812 KB Output is correct
77 Correct 272 ms 166604 KB Output is correct
78 Correct 271 ms 167512 KB Output is correct
79 Correct 285 ms 179908 KB Output is correct