답안 #328052

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
328052	2020-11-15T09:41:15 Z	YJU	별자리 3 (JOI20_constellation3)	C++14	100 / 100	315 ms	45616 KB

constellation3

#include<bits/stdc++.h>
#pragma GCC optimize("unroll-loops,no-stack-protector")
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> pll;
const ll MOD=1e9+7;
const ll MOD2=998244353;
const ll N=2e5+5;
const ld pi=3.14159265359;
const ll INF=(1LL<<60);
#define SQ(i) ((i)*(i))
#define REP(i,n) for(ll i=0;i<n;i++)
#define REP1(i,n) for(ll i=1;i<=n;i++)
#define pb push_back
#define mp make_pair
#define X first
#define Y second
#define setp setprecision
#define lwb lower_bound
#define SZ(_a) (ll)_a.size()

map<int,ll> f[N];
ll g[N],z[N],a[N],n,m,rt,s[N],r[N],l[N],sum,ans,t;

void work(ll x,ll y){
	while(SZ(f[x])&&f[x].begin()->X<=y){
		g[x]=max(g[x],f[x].begin()->Y+z[x]);f[x].erase(f[x].begin());
	}
}

ll mg(ll x,ll y){
	if(SZ(f[x])<SZ(f[y]))swap(x,y);
	z[x]+=g[y];z[y]+=g[x];g[x]+=g[y];
	for(auto o:f[y])f[x][o.X]=max(f[x][o.X],o.Y+z[y]-z[x]);
	return x;
}

ll DFS(ll x){
	ll y=x;
	if(l[x])l[x]=DFS(l[x]),work(l[x],a[x]),y=mg(y,l[x]);
	if(r[x])r[x]=DFS(r[x]),work(r[x],a[x]),y=mg(y,r[x]);
	return y;
}

int main(){
	ios_base::sync_with_stdio(0);cin.tie(0);
	cin>>n;
	REP1(i,n){
		cin>>a[i];
		ll id=t;
		while(id&&a[s[id]]<a[i])--id;
		if(id)r[s[id]]=i;
		if(id<t)l[i]=s[id+1];
		s[++id]=i,t=id;
	}
	rt=s[1];
	cin>>m;
	for(int i=1,x,y,c;i<=m;i++){
		cin>>x>>y>>c;
		sum+=(f[x][y]=c);
	}
	rt=DFS(rt),ans=g[rt];
	for(auto o:f[rt])ans=max(ans,o.Y+z[rt]);
	cout<<sum-ans<<"\n";
	return 0;
}

Subtask #1
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	8 ms	9836 KB	Output is correct
2	Correct	6 ms	9836 KB	Output is correct
3	Correct	7 ms	9836 KB	Output is correct
4	Correct	6 ms	9836 KB	Output is correct
5	Correct	6 ms	9836 KB	Output is correct
6	Correct	7 ms	9836 KB	Output is correct
7	Correct	6 ms	9836 KB	Output is correct
8	Correct	6 ms	9836 KB	Output is correct
9	Correct	6 ms	9836 KB	Output is correct
10	Correct	7 ms	9836 KB	Output is correct
11	Correct	7 ms	9836 KB	Output is correct
12	Correct	7 ms	9836 KB	Output is correct
13	Correct	6 ms	9836 KB	Output is correct
14	Correct	7 ms	9836 KB	Output is correct
15	Correct	6 ms	9836 KB	Output is correct
16	Correct	7 ms	9836 KB	Output is correct
17	Correct	7 ms	9836 KB	Output is correct
18	Correct	7 ms	9836 KB	Output is correct
19	Correct	7 ms	9836 KB	Output is correct
20	Correct	7 ms	9836 KB	Output is correct
21	Correct	7 ms	9836 KB	Output is correct
22	Correct	7 ms	9836 KB	Output is correct

Subtask #2
21.0 / 21.0

#	결과	실행 시간	메모리	Grader output
1	Correct	8 ms	9836 KB	Output is correct
2	Correct	6 ms	9836 KB	Output is correct
3	Correct	7 ms	9836 KB	Output is correct
4	Correct	6 ms	9836 KB	Output is correct
5	Correct	6 ms	9836 KB	Output is correct
6	Correct	7 ms	9836 KB	Output is correct
7	Correct	6 ms	9836 KB	Output is correct
8	Correct	6 ms	9836 KB	Output is correct
9	Correct	6 ms	9836 KB	Output is correct
10	Correct	7 ms	9836 KB	Output is correct
11	Correct	7 ms	9836 KB	Output is correct
12	Correct	7 ms	9836 KB	Output is correct
13	Correct	6 ms	9836 KB	Output is correct
14	Correct	7 ms	9836 KB	Output is correct
15	Correct	6 ms	9836 KB	Output is correct
16	Correct	7 ms	9836 KB	Output is correct
17	Correct	7 ms	9836 KB	Output is correct
18	Correct	7 ms	9836 KB	Output is correct
19	Correct	7 ms	9836 KB	Output is correct
20	Correct	7 ms	9836 KB	Output is correct
21	Correct	7 ms	9836 KB	Output is correct
22	Correct	7 ms	9836 KB	Output is correct
23	Correct	9 ms	9964 KB	Output is correct
24	Correct	8 ms	9964 KB	Output is correct
25	Correct	8 ms	9964 KB	Output is correct
26	Correct	8 ms	9964 KB	Output is correct
27	Correct	8 ms	9964 KB	Output is correct
28	Correct	9 ms	10120 KB	Output is correct
29	Correct	9 ms	10092 KB	Output is correct
30	Correct	8 ms	9964 KB	Output is correct
31	Correct	8 ms	9964 KB	Output is correct
32	Correct	8 ms	10092 KB	Output is correct
33	Correct	9 ms	10092 KB	Output is correct
34	Correct	8 ms	10092 KB	Output is correct
35	Correct	8 ms	10092 KB	Output is correct
36	Correct	9 ms	10092 KB	Output is correct
37	Correct	9 ms	10092 KB	Output is correct
38	Correct	9 ms	10092 KB	Output is correct
39	Correct	10 ms	10220 KB	Output is correct
40	Correct	9 ms	10092 KB	Output is correct
41	Correct	8 ms	10092 KB	Output is correct
42	Correct	8 ms	10092 KB	Output is correct
43	Correct	8 ms	10092 KB	Output is correct
44	Correct	8 ms	9984 KB	Output is correct

Subtask #3
65.0 / 65.0

#	결과	실행 시간	메모리	Grader output
1	Correct	8 ms	9836 KB	Output is correct
2	Correct	6 ms	9836 KB	Output is correct
3	Correct	7 ms	9836 KB	Output is correct
4	Correct	6 ms	9836 KB	Output is correct
5	Correct	6 ms	9836 KB	Output is correct
6	Correct	7 ms	9836 KB	Output is correct
7	Correct	6 ms	9836 KB	Output is correct
8	Correct	6 ms	9836 KB	Output is correct
9	Correct	6 ms	9836 KB	Output is correct
10	Correct	7 ms	9836 KB	Output is correct
11	Correct	7 ms	9836 KB	Output is correct
12	Correct	7 ms	9836 KB	Output is correct
13	Correct	6 ms	9836 KB	Output is correct
14	Correct	7 ms	9836 KB	Output is correct
15	Correct	6 ms	9836 KB	Output is correct
16	Correct	7 ms	9836 KB	Output is correct
17	Correct	7 ms	9836 KB	Output is correct
18	Correct	7 ms	9836 KB	Output is correct
19	Correct	7 ms	9836 KB	Output is correct
20	Correct	7 ms	9836 KB	Output is correct
21	Correct	7 ms	9836 KB	Output is correct
22	Correct	7 ms	9836 KB	Output is correct
23	Correct	9 ms	9964 KB	Output is correct
24	Correct	8 ms	9964 KB	Output is correct
25	Correct	8 ms	9964 KB	Output is correct
26	Correct	8 ms	9964 KB	Output is correct
27	Correct	8 ms	9964 KB	Output is correct
28	Correct	9 ms	10120 KB	Output is correct
29	Correct	9 ms	10092 KB	Output is correct
30	Correct	8 ms	9964 KB	Output is correct
31	Correct	8 ms	9964 KB	Output is correct
32	Correct	8 ms	10092 KB	Output is correct
33	Correct	9 ms	10092 KB	Output is correct
34	Correct	8 ms	10092 KB	Output is correct
35	Correct	8 ms	10092 KB	Output is correct
36	Correct	9 ms	10092 KB	Output is correct
37	Correct	9 ms	10092 KB	Output is correct
38	Correct	9 ms	10092 KB	Output is correct
39	Correct	10 ms	10220 KB	Output is correct
40	Correct	9 ms	10092 KB	Output is correct
41	Correct	8 ms	10092 KB	Output is correct
42	Correct	8 ms	10092 KB	Output is correct
43	Correct	8 ms	10092 KB	Output is correct
44	Correct	8 ms	9984 KB	Output is correct
45	Correct	220 ms	35456 KB	Output is correct
46	Correct	208 ms	34964 KB	Output is correct
47	Correct	217 ms	35692 KB	Output is correct
48	Correct	209 ms	35020 KB	Output is correct
49	Correct	204 ms	35052 KB	Output is correct
50	Correct	203 ms	34668 KB	Output is correct
51	Correct	211 ms	35052 KB	Output is correct
52	Correct	212 ms	35692 KB	Output is correct
53	Correct	208 ms	35052 KB	Output is correct
54	Correct	292 ms	43628 KB	Output is correct
55	Correct	309 ms	44012 KB	Output is correct
56	Correct	306 ms	43628 KB	Output is correct
57	Correct	311 ms	44136 KB	Output is correct
58	Correct	312 ms	45420 KB	Output is correct
59	Correct	315 ms	45616 KB	Output is correct
60	Correct	116 ms	39532 KB	Output is correct
61	Correct	226 ms	41556 KB	Output is correct
62	Correct	299 ms	44268 KB	Output is correct
63	Correct	208 ms	39460 KB	Output is correct
64	Correct	220 ms	40852 KB	Output is correct
65	Correct	294 ms	43756 KB	Output is correct
66	Correct	218 ms	40736 KB	Output is correct

답안 #328052

Compilation message

Subtask #1 14.0 / 14.0

Subtask #2 21.0 / 21.0

Subtask #3 65.0 / 65.0

Subtask #1
14.0 / 14.0

Subtask #2
21.0 / 21.0

Subtask #3
65.0 / 65.0