oj.uz

Submission #96216

# Submission time Handle Problem Language Result Execution time Memory
96216 2019-02-07T06:26:54 Z jangwonyoung Wild Boar (JOI18_wild_boar) C++14
100 / 100
 9040 ms 540664 KB 
#include<iostream>
#include<queue>
using namespace std;
typedef long long ll;
typedef pair<ll,int> pli;
#define fi first
#define se second
#define pb push_back
int n,m,q,k;
vector<int>adj[2001];
int u[4001],v[4001],w[4001];
int f(int x){return ((x-1)^1)+1;}
 
ll dis[4001];
int cnt[4001];
bool vis[4001];
priority_queue<pli,vector<pli>,greater<pli> >pq;
 
struct path{
	int s,e;ll w;
};
path inf={0,0,(ll)1e18};
vector<path>tae[2001][2001];
vector<path>tzu;
 
void elim(vector<path>&e){
	tzu.clear();tzu.shrink_to_fit();
	for(int i=0; i<5 ;i++){
		path res=inf;
		for(auto newi:e){
			int sx=0,ex=0,px=0;
			for(auto cur:tzu) sx+=(newi.s==cur.s),ex+=(newi.e==cur.e),px+=(newi.s==cur.s && newi.e==cur.e);
			if(sx>=2 || ex>=2 || px>=1) continue;
			if(res.w>newi.w) res=newi; 
		}
		tzu.push_back(res);
	}
	e=tzu;
	e.shrink_to_fit();
}
int x[100001];
vector<path>rv[400001];
void pull(int id){
	rv[id].clear();
	for(int i=0; i<5 ;i++){
		for(int j=0; j<5 ;j++){
			if(rv[id*2][i].e!=rv[id*2+1][j].s){
				rv[id].push_back({rv[id*2][i].s,rv[id*2+1][j].e,rv[id*2][i].w+rv[id*2+1][j].w});
			}
		}
	}
	elim(rv[id]);
}
void build(int id,int l,int r){
	if(l+1==r){
		rv[id]=tae[x[l]][x[r]];
		return;
	}
	int mid=(l+r)/2;
	build(id*2,l,mid);build(id*2+1,mid,r);
	pull(id);
}
void upd(int id,int l,int r,int y){
	if(r<y || l>y) return;
	if(l+1==r){
		rv[id]=tae[x[l]][x[r]];
		return;
	}
	int mid=(l+r)/2;
	upd(id*2,l,mid,y);upd(id*2+1,mid,r,y);
	pull(id);
}
void out(vector<path>&v){
	for(auto cur:v){
		cout << cur.s << ' ' << cur.e << ' ' << cur.w << endl;
	}
}
int main(){
	ios::sync_with_stdio(false);
	tzu.resize(5);
	cin >> n >> m >> q >> k;
	for(int i=1; i<=m ;i++){
		cin >> u[i*2] >> v[i*2] >> w[i*2];
		u[i*2-1]=v[i*2],v[i*2-1]=u[i*2];w[i*2-1]=w[i*2];
		adj[u[i*2]].push_back(i*2);adj[v[i*2]].push_back(i*2-1);
	}
	for(int i=1; i<=n ;i++){
		for(auto kirino:adj[i]){
			for(int j=1; j<=2*m ;j++) cnt[j]=0,vis[j]=false,dis[j]=1e18;
			dis[kirino]=w[kirino];
			pq.push({dis[kirino],kirino});
			while(!pq.empty()){
				int cur=pq.top().se;pq.pop();
				int id=u[cur];
				if(vis[cur] || cnt[id]>=2) continue;
				vis[cur]=true;cnt[id]++;
				for(auto newi:adj[id]){
					if(cur==newi) continue;
					newi=f(newi);//1 based :(
					if(dis[newi]>dis[cur]+w[newi]){
						dis[newi]=dis[cur]+w[newi];
						pq.push({dis[newi],newi});
					}
				}
			}
			for(int j=1; j<=2*m ;j++){
				tae[v[kirino]][u[j]].push_back({f(kirino),j,dis[j]});
			}
		}
	}
	for(int i=1; i<=n ;i++){
		for(int j=1; j<=n ;j++){
			elim(tae[i][j]);
		}
	}
	for(int i=1; i<=k ;i++) cin >> x[i];
	build(1,1,k);
	for(int i=1; i<=q ;i++){
		int u,v;cin >> u >> v;
		x[u]=v;upd(1,1,k,u);
		ll ans=rv[1][0].w;
		if(ans>=1e18) cout << "-1\n";
		else cout << ans << '\n';
	}
	
}

Subtask #1
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 92 ms 103800 KB Output is correct
2 Correct 92 ms 103928 KB Output is correct
3 Correct 98 ms 103772 KB Output is correct
4 Correct 90 ms 103796 KB Output is correct
5 Correct 85 ms 103800 KB Output is correct
6 Correct 88 ms 103788 KB Output is correct
7 Correct 92 ms 103928 KB Output is correct
8 Correct 91 ms 103800 KB Output is correct
9 Correct 91 ms 103816 KB Output is correct
10 Correct 90 ms 103804 KB Output is correct
11 Correct 91 ms 103804 KB Output is correct
12 Correct 94 ms 103984 KB Output is correct
13 Correct 91 ms 103920 KB Output is correct
14 Correct 82 ms 103884 KB Output is correct
15 Correct 80 ms 103800 KB Output is correct
16 Correct 80 ms 103800 KB Output is correct
17 Correct 91 ms 103800 KB Output is correct
18 Correct 95 ms 103800 KB Output is correct
19 Correct 125 ms 103800 KB Output is correct
20 Correct 79 ms 103928 KB Output is correct
21 Correct 79 ms 103800 KB Output is correct
22 Correct 80 ms 103800 KB Output is correct
23 Correct 86 ms 103864 KB Output is correct
24 Correct 93 ms 103800 KB Output is correct
25 Correct 79 ms 103800 KB Output is correct

Subtask #2
35.0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 92 ms 103800 KB Output is correct
2 Correct 92 ms 103928 KB Output is correct
3 Correct 98 ms 103772 KB Output is correct
4 Correct 90 ms 103796 KB Output is correct
5 Correct 85 ms 103800 KB Output is correct
6 Correct 88 ms 103788 KB Output is correct
7 Correct 92 ms 103928 KB Output is correct
8 Correct 91 ms 103800 KB Output is correct
9 Correct 91 ms 103816 KB Output is correct
10 Correct 90 ms 103804 KB Output is correct
11 Correct 91 ms 103804 KB Output is correct
12 Correct 94 ms 103984 KB Output is correct
13 Correct 91 ms 103920 KB Output is correct
14 Correct 82 ms 103884 KB Output is correct
15 Correct 80 ms 103800 KB Output is correct
16 Correct 80 ms 103800 KB Output is correct
17 Correct 91 ms 103800 KB Output is correct
18 Correct 95 ms 103800 KB Output is correct
19 Correct 125 ms 103800 KB Output is correct
20 Correct 79 ms 103928 KB Output is correct
21 Correct 79 ms 103800 KB Output is correct
22 Correct 80 ms 103800 KB Output is correct
23 Correct 86 ms 103864 KB Output is correct
24 Correct 93 ms 103800 KB Output is correct
25 Correct 79 ms 103800 KB Output is correct
26 Correct 81 ms 104028 KB Output is correct
27 Correct 213 ms 126012 KB Output is correct
28 Correct 222 ms 125940 KB Output is correct
29 Correct 430 ms 124876 KB Output is correct
30 Correct 391 ms 124524 KB Output is correct
31 Correct 370 ms 124600 KB Output is correct
32 Correct 363 ms 124596 KB Output is correct
33 Correct 409 ms 126812 KB Output is correct
34 Correct 412 ms 126968 KB Output is correct
35 Correct 365 ms 125416 KB Output is correct
36 Correct 387 ms 126072 KB Output is correct
37 Correct 416 ms 126840 KB Output is correct
38 Correct 427 ms 129400 KB Output is correct
39 Correct 390 ms 127608 KB Output is correct
40 Correct 388 ms 129272 KB Output is correct
41 Correct 411 ms 129272 KB Output is correct
42 Correct 396 ms 128760 KB Output is correct
43 Correct 413 ms 132004 KB Output is correct
44 Correct 431 ms 131876 KB Output is correct
45 Correct 380 ms 134392 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 92 ms 103800 KB Output is correct
2 Correct 92 ms 103928 KB Output is correct
3 Correct 98 ms 103772 KB Output is correct
4 Correct 90 ms 103796 KB Output is correct
5 Correct 85 ms 103800 KB Output is correct
6 Correct 88 ms 103788 KB Output is correct
7 Correct 92 ms 103928 KB Output is correct
8 Correct 91 ms 103800 KB Output is correct
9 Correct 91 ms 103816 KB Output is correct
10 Correct 90 ms 103804 KB Output is correct
11 Correct 91 ms 103804 KB Output is correct
12 Correct 94 ms 103984 KB Output is correct
13 Correct 91 ms 103920 KB Output is correct
14 Correct 82 ms 103884 KB Output is correct
15 Correct 80 ms 103800 KB Output is correct
16 Correct 80 ms 103800 KB Output is correct
17 Correct 91 ms 103800 KB Output is correct
18 Correct 95 ms 103800 KB Output is correct
19 Correct 125 ms 103800 KB Output is correct
20 Correct 79 ms 103928 KB Output is correct
21 Correct 79 ms 103800 KB Output is correct
22 Correct 80 ms 103800 KB Output is correct
23 Correct 86 ms 103864 KB Output is correct
24 Correct 93 ms 103800 KB Output is correct
25 Correct 79 ms 103800 KB Output is correct
26 Correct 81 ms 104028 KB Output is correct
27 Correct 213 ms 126012 KB Output is correct
28 Correct 222 ms 125940 KB Output is correct
29 Correct 430 ms 124876 KB Output is correct
30 Correct 391 ms 124524 KB Output is correct
31 Correct 370 ms 124600 KB Output is correct
32 Correct 363 ms 124596 KB Output is correct
33 Correct 409 ms 126812 KB Output is correct
34 Correct 412 ms 126968 KB Output is correct
35 Correct 365 ms 125416 KB Output is correct
36 Correct 387 ms 126072 KB Output is correct
37 Correct 416 ms 126840 KB Output is correct
38 Correct 427 ms 129400 KB Output is correct
39 Correct 390 ms 127608 KB Output is correct
40 Correct 388 ms 129272 KB Output is correct
41 Correct 411 ms 129272 KB Output is correct
42 Correct 396 ms 128760 KB Output is correct
43 Correct 413 ms 132004 KB Output is correct
44 Correct 431 ms 131876 KB Output is correct
45 Correct 380 ms 134392 KB Output is correct
46 Correct 359 ms 126504 KB Output is correct
47 Correct 4224 ms 431344 KB Output is correct
48 Correct 4599 ms 439920 KB Output is correct
49 Correct 5112 ms 458176 KB Output is correct
50 Correct 4802 ms 446384 KB Output is correct
51 Correct 5023 ms 444304 KB Output is correct
52 Correct 5568 ms 472356 KB Output is correct
53 Correct 5758 ms 475236 KB Output is correct
54 Correct 5580 ms 470792 KB Output is correct
55 Correct 5608 ms 473068 KB Output is correct
56 Correct 5622 ms 476316 KB Output is correct
57 Correct 5369 ms 476024 KB Output is correct
58 Correct 5752 ms 478372 KB Output is correct
59 Correct 5540 ms 483772 KB Output is correct
60 Correct 5625 ms 480148 KB Output is correct
61 Correct 6059 ms 477776 KB Output is correct
62 Correct 6129 ms 470012 KB Output is correct
63 Correct 6083 ms 461992 KB Output is correct
64 Correct 4186 ms 539692 KB Output is correct
65 Correct 4206 ms 539856 KB Output is correct

Subtask #4
38.0 / 38.0

# Verdict Execution time Memory Grader output
1 Correct 92 ms 103800 KB Output is correct
2 Correct 92 ms 103928 KB Output is correct
3 Correct 98 ms 103772 KB Output is correct
4 Correct 90 ms 103796 KB Output is correct
5 Correct 85 ms 103800 KB Output is correct
6 Correct 88 ms 103788 KB Output is correct
7 Correct 92 ms 103928 KB Output is correct
8 Correct 91 ms 103800 KB Output is correct
9 Correct 91 ms 103816 KB Output is correct
10 Correct 90 ms 103804 KB Output is correct
11 Correct 91 ms 103804 KB Output is correct
12 Correct 94 ms 103984 KB Output is correct
13 Correct 91 ms 103920 KB Output is correct
14 Correct 82 ms 103884 KB Output is correct
15 Correct 80 ms 103800 KB Output is correct
16 Correct 80 ms 103800 KB Output is correct
17 Correct 91 ms 103800 KB Output is correct
18 Correct 95 ms 103800 KB Output is correct
19 Correct 125 ms 103800 KB Output is correct
20 Correct 79 ms 103928 KB Output is correct
21 Correct 79 ms 103800 KB Output is correct
22 Correct 80 ms 103800 KB Output is correct
23 Correct 86 ms 103864 KB Output is correct
24 Correct 93 ms 103800 KB Output is correct
25 Correct 79 ms 103800 KB Output is correct
26 Correct 81 ms 104028 KB Output is correct
27 Correct 213 ms 126012 KB Output is correct
28 Correct 222 ms 125940 KB Output is correct
29 Correct 430 ms 124876 KB Output is correct
30 Correct 391 ms 124524 KB Output is correct
31 Correct 370 ms 124600 KB Output is correct
32 Correct 363 ms 124596 KB Output is correct
33 Correct 409 ms 126812 KB Output is correct
34 Correct 412 ms 126968 KB Output is correct
35 Correct 365 ms 125416 KB Output is correct
36 Correct 387 ms 126072 KB Output is correct
37 Correct 416 ms 126840 KB Output is correct
38 Correct 427 ms 129400 KB Output is correct
39 Correct 390 ms 127608 KB Output is correct
40 Correct 388 ms 129272 KB Output is correct
41 Correct 411 ms 129272 KB Output is correct
42 Correct 396 ms 128760 KB Output is correct
43 Correct 413 ms 132004 KB Output is correct
44 Correct 431 ms 131876 KB Output is correct
45 Correct 380 ms 134392 KB Output is correct
46 Correct 359 ms 126504 KB Output is correct
47 Correct 4224 ms 431344 KB Output is correct
48 Correct 4599 ms 439920 KB Output is correct
49 Correct 5112 ms 458176 KB Output is correct
50 Correct 4802 ms 446384 KB Output is correct
51 Correct 5023 ms 444304 KB Output is correct
52 Correct 5568 ms 472356 KB Output is correct
53 Correct 5758 ms 475236 KB Output is correct
54 Correct 5580 ms 470792 KB Output is correct
55 Correct 5608 ms 473068 KB Output is correct
56 Correct 5622 ms 476316 KB Output is correct
57 Correct 5369 ms 476024 KB Output is correct
58 Correct 5752 ms 478372 KB Output is correct
59 Correct 5540 ms 483772 KB Output is correct
60 Correct 5625 ms 480148 KB Output is correct
61 Correct 6059 ms 477776 KB Output is correct
62 Correct 6129 ms 470012 KB Output is correct
63 Correct 6083 ms 461992 KB Output is correct
64 Correct 4186 ms 539692 KB Output is correct
65 Correct 4206 ms 539856 KB Output is correct
66 Correct 305 ms 124792 KB Output is correct
67 Correct 1584 ms 206880 KB Output is correct
68 Correct 4501 ms 513892 KB Output is correct
69 Correct 4879 ms 519032 KB Output is correct
70 Correct 5455 ms 535928 KB Output is correct
71 Correct 7268 ms 427512 KB Output is correct
72 Correct 7428 ms 438784 KB Output is correct
73 Correct 8425 ms 473584 KB Output is correct
74 Correct 8714 ms 476176 KB Output is correct
75 Correct 8507 ms 474328 KB Output is correct
76 Correct 8143 ms 454984 KB Output is correct
77 Correct 7878 ms 445864 KB Output is correct
78 Correct 7736 ms 443156 KB Output is correct
79 Correct 8358 ms 481116 KB Output is correct
80 Correct 8479 ms 482368 KB Output is correct
81 Correct 8052 ms 469396 KB Output is correct
82 Correct 9040 ms 485332 KB Output is correct
83 Correct 8816 ms 479824 KB Output is correct
84 Correct 8923 ms 465820 KB Output is correct
85 Correct 6380 ms 540664 KB Output is correct