oj.uz

답안 #265037

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
265037 2020-08-14T12:34:18 Z Goolakh Election Campaign (JOI15_election_campaign) C++17
100 / 100
 434 ms 40824 KB 
// FUCKED UP FUCKED UP FUCKED UP FUCKED UP FUCKED UP
#include <bits/stdc++.h>
using namespace std;

#pragma GCC optimize("O2")

#define F first
#define S second
#define pb push_back
#define SZ(x) (ll)(x.size())
#define all(x) x.begin(),x.end()
#define MP make_pair

typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> pll;

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

const ll maxn=1e5+10, maxm=1e6+10, lg=17, mod=1e9+7, inf=1e18;

#define git(x) (x&-x)

ll n,m,A[maxn],B[maxn],C[maxn],par[maxn][lg+1],ss[maxn][lg+1],st[maxn],ft[maxn],tt,h[maxn],bit[maxn],dp[maxn];
vector<ll> g[maxn],Q[maxn];
void add(ll i,ll x){for(;i<maxn;i+=git(i))bit[i]+=x;}
ll get(ll i){ll ret=0;for(;i;i-=git(i))ret+=bit[i];return ret;}
void pfs(ll v=1,ll p=0){
	st[v]=++tt;
	h[v]=h[par[v][0]=p]+1; for(int i=1;i<=lg;i++) par[v][i]=par[par[v][i-1]][i-1];
	for(auto u:g[v])if(u!=p) pfs(u,v);
	ft[v]=tt+1;
}
ll parx(ll v,ll x){
	if(x<=0) return v;
	for(int i=0;i<=lg;i++)if(x>>i&1) v=par[v][i];
	return v;
}
ll lca(ll v,ll u){
	if(h[v]<h[u]) swap(v,u);
	v=parx(v,h[v]-h[u]);
	if(v==u) return v;
	for(int i=lg;i>=0;i--)if(par[v][i]!=par[u][i]) v=par[v][i], u=par[u][i];
	return par[v][0];
}
void dfs(ll v=1,ll p=0){
	ll bac=0;
	for(auto u:g[v])if(u!=p) dfs(u,v), bac+=dp[u];
	dp[v]=bac;
	for(auto i:Q[v]) dp[v]=max(dp[v],C[i]+bac+get(st[A[i]])+get(st[B[i]]));
	//cout<<v<<' '<<dp[v]<<endl;
	add(st[v],bac-dp[v]);
	add(ft[v],-(bac-dp[v]));
}

int main(){
	ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);
	
	cin>>n;
	for(int i=1;i<n;i++){
		ll v,u; cin>>v>>u;
		g[v].pb(u), g[u].pb(v);
	}
	pfs();
	cin>>m;
	for(int i=0;i<m;i++) cin>>A[i]>>B[i]>>C[i], Q[lca(A[i],B[i])].pb(i);
	dfs();
	cout<<dp[1];

	return 0;
}
// a denial a denial a denial a denial a denial a denial

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 5120 KB Output is correct
2 Correct 4 ms 5120 KB Output is correct
3 Correct 4 ms 5120 KB Output is correct
4 Correct 5 ms 5376 KB Output is correct
5 Correct 141 ms 28152 KB Output is correct
6 Correct 77 ms 35192 KB Output is correct
7 Correct 144 ms 32828 KB Output is correct
8 Correct 91 ms 28280 KB Output is correct
9 Correct 135 ms 31352 KB Output is correct
10 Correct 84 ms 28280 KB Output is correct

Subtask #2
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 5120 KB Output is correct
2 Correct 4 ms 5120 KB Output is correct
3 Correct 4 ms 5376 KB Output is correct
4 Correct 167 ms 40440 KB Output is correct
5 Correct 184 ms 40568 KB Output is correct
6 Correct 149 ms 40440 KB Output is correct
7 Correct 167 ms 40316 KB Output is correct
8 Correct 202 ms 40440 KB Output is correct
9 Correct 141 ms 40440 KB Output is correct
10 Correct 162 ms 40440 KB Output is correct

Subtask #3
5.0 / 5.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 5120 KB Output is correct
2 Correct 4 ms 5120 KB Output is correct
3 Correct 4 ms 5376 KB Output is correct
4 Correct 167 ms 40440 KB Output is correct
5 Correct 184 ms 40568 KB Output is correct
6 Correct 149 ms 40440 KB Output is correct
7 Correct 167 ms 40316 KB Output is correct
8 Correct 202 ms 40440 KB Output is correct
9 Correct 141 ms 40440 KB Output is correct
10 Correct 162 ms 40440 KB Output is correct
11 Correct 14 ms 6528 KB Output is correct
12 Correct 199 ms 40696 KB Output is correct
13 Correct 207 ms 40824 KB Output is correct
14 Correct 173 ms 40696 KB Output is correct
15 Correct 213 ms 40696 KB Output is correct
16 Correct 171 ms 40736 KB Output is correct
17 Correct 186 ms 40700 KB Output is correct
18 Correct 184 ms 40824 KB Output is correct
19 Correct 167 ms 40676 KB Output is correct
20 Correct 171 ms 40696 KB Output is correct

Subtask #4
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 239 ms 32876 KB Output is correct
2 Correct 193 ms 40440 KB Output is correct
3 Correct 434 ms 37752 KB Output is correct
4 Correct 207 ms 33008 KB Output is correct
5 Correct 355 ms 37240 KB Output is correct
6 Correct 164 ms 32964 KB Output is correct
7 Correct 405 ms 36980 KB Output is correct
8 Correct 214 ms 33016 KB Output is correct
9 Correct 168 ms 40568 KB Output is correct
10 Correct 283 ms 36008 KB Output is correct

Subtask #5
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 5120 KB Output is correct
2 Correct 4 ms 5120 KB Output is correct
3 Correct 4 ms 5120 KB Output is correct
4 Correct 5 ms 5376 KB Output is correct
5 Correct 141 ms 28152 KB Output is correct
6 Correct 77 ms 35192 KB Output is correct
7 Correct 144 ms 32828 KB Output is correct
8 Correct 91 ms 28280 KB Output is correct
9 Correct 135 ms 31352 KB Output is correct
10 Correct 84 ms 28280 KB Output is correct
11 Correct 5 ms 5408 KB Output is correct
12 Correct 5 ms 5504 KB Output is correct
13 Correct 5 ms 5376 KB Output is correct
14 Correct 6 ms 5408 KB Output is correct
15 Correct 6 ms 5376 KB Output is correct
16 Correct 6 ms 5376 KB Output is correct
17 Correct 5 ms 5376 KB Output is correct
18 Correct 6 ms 5376 KB Output is correct
19 Correct 6 ms 5376 KB Output is correct
20 Correct 5 ms 5504 KB Output is correct

Subtask #6
40.0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 5120 KB Output is correct
2 Correct 4 ms 5120 KB Output is correct
3 Correct 4 ms 5120 KB Output is correct
4 Correct 5 ms 5376 KB Output is correct
5 Correct 141 ms 28152 KB Output is correct
6 Correct 77 ms 35192 KB Output is correct
7 Correct 144 ms 32828 KB Output is correct
8 Correct 91 ms 28280 KB Output is correct
9 Correct 135 ms 31352 KB Output is correct
10 Correct 84 ms 28280 KB Output is correct
11 Correct 4 ms 5120 KB Output is correct
12 Correct 4 ms 5120 KB Output is correct
13 Correct 4 ms 5376 KB Output is correct
14 Correct 167 ms 40440 KB Output is correct
15 Correct 184 ms 40568 KB Output is correct
16 Correct 149 ms 40440 KB Output is correct
17 Correct 167 ms 40316 KB Output is correct
18 Correct 202 ms 40440 KB Output is correct
19 Correct 141 ms 40440 KB Output is correct
20 Correct 162 ms 40440 KB Output is correct
21 Correct 14 ms 6528 KB Output is correct
22 Correct 199 ms 40696 KB Output is correct
23 Correct 207 ms 40824 KB Output is correct
24 Correct 173 ms 40696 KB Output is correct
25 Correct 213 ms 40696 KB Output is correct
26 Correct 171 ms 40736 KB Output is correct
27 Correct 186 ms 40700 KB Output is correct
28 Correct 184 ms 40824 KB Output is correct
29 Correct 167 ms 40676 KB Output is correct
30 Correct 171 ms 40696 KB Output is correct
31 Correct 239 ms 32876 KB Output is correct
32 Correct 193 ms 40440 KB Output is correct
33 Correct 434 ms 37752 KB Output is correct
34 Correct 207 ms 33008 KB Output is correct
35 Correct 355 ms 37240 KB Output is correct
36 Correct 164 ms 32964 KB Output is correct
37 Correct 405 ms 36980 KB Output is correct
38 Correct 214 ms 33016 KB Output is correct
39 Correct 168 ms 40568 KB Output is correct
40 Correct 283 ms 36008 KB Output is correct
41 Correct 5 ms 5408 KB Output is correct
42 Correct 5 ms 5504 KB Output is correct
43 Correct 5 ms 5376 KB Output is correct
44 Correct 6 ms 5408 KB Output is correct
45 Correct 6 ms 5376 KB Output is correct
46 Correct 6 ms 5376 KB Output is correct
47 Correct 5 ms 5376 KB Output is correct
48 Correct 6 ms 5376 KB Output is correct
49 Correct 6 ms 5376 KB Output is correct
50 Correct 5 ms 5504 KB Output is correct
51 Correct 222 ms 33272 KB Output is correct
52 Correct 175 ms 40696 KB Output is correct
53 Correct 284 ms 36332 KB Output is correct
54 Correct 137 ms 33140 KB Output is correct
55 Correct 201 ms 33100 KB Output is correct
56 Correct 206 ms 40696 KB Output is correct
57 Correct 242 ms 37112 KB Output is correct
58 Correct 147 ms 33140 KB Output is correct
59 Correct 202 ms 33272 KB Output is correct
60 Correct 156 ms 40696 KB Output is correct
61 Correct 326 ms 37240 KB Output is correct
62 Correct 145 ms 33016 KB Output is correct
63 Correct 220 ms 32960 KB Output is correct
64 Correct 207 ms 40696 KB Output is correct
65 Correct 358 ms 37104 KB Output is correct
66 Correct 167 ms 33268 KB Output is correct
67 Correct 245 ms 33004 KB Output is correct
68 Correct 180 ms 40696 KB Output is correct
69 Correct 253 ms 35960 KB Output is correct
70 Correct 144 ms 33408 KB Output is correct