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답안 #213314

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
213314 2020-03-25T13:41:59 Z ryansee 별자리 3 (JOI20_constellation3) C++14
100 / 100
 948 ms 62200 KB 
#include "bits/stdc++.h"
using namespace std;

#define FAST ios_base::sync_with_stdio(false); cin.tie(0);
#define pb push_back
#define eb emplace_back
#define ins insert
#define ph push
#define f first
#define s second
#define cbr cerr << "hi\n"
#define mmst(x, v) memset((x), v, sizeof ((x)))
#define siz(x) ll(x.size())
#define all(x) (x).begin(), (x).end()
#define lbd(x, y) lower_bound(all(x), y)
#define ubd(x, y) upper_bound(all(x), y)
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());    //can be used by calling rng() or shuffle(A, A+n, rng)
inline long long rand(long long x, long long y) { return (rng() % (y+1-x)) + x; } //inclusivesss
string inline to_string(char c) {string s(1,c);return s;} template<typename T> inline T gcd(T a,T b){ return a==0?llabs(b):gcd(b%a,a); }

typedef long long ll; 
typedef long double ld;
#define FOR(i,s,e) for(ll i=s;i<=ll(e);++i)
#define DEC(i,s,e) for(ll i=s;i>=ll(e);--i)
typedef pair<ll,ll>pi; typedef pair<ll,pi>spi; typedef pair<pi,pi>dpi;

#define LLINF ((long long)1e18)
#define INF int(1e9+1e6)
#define MAXN (200006)
ll n,m,A[MAXN];
vector<pi> S[MAXN], row[MAXN];
vector<int> reveal[MAXN];
int p[MAXN], mi[MAXN], mx[MAXN];
struct ufds_ {
	ufds_ () {
		FOR(i,0,MAXN-1) p[i]=mi[i]=mx[i]=i;
	}
	void merge(int x,int y){
		x=find(x),y=find(y);
		if(x==y)return;
		p[x]=y;
		mx[y]=max(mx[y],mx[x]);
		mi[y]=min(mi[y],mi[x]);
	}
	int find(int x) { return (p[x]==x) ? x : p[x]=find(p[x]); }
	bool same(int a,int b) { return find(a)==find(b); }
} ufds;
struct node {
	int s,e,m;
	ll v=0,add=0;
	node*l,*r;
	node(int S,int E){
		s=S,e=E,m=(s+e)>>1;
		v=add=0;
		if(s^e)l=new node(s,m),r=new node(m+1,e);
	}
	ll value(){
		v+=add;
		if(s^e){
			l->add+=add;
			r->add+=add;
		}
		add=0;
		return v;
	}
	void update(int x,int y,ll nval){
		if(x>y)return;
		value();
		if(s==x&&e==y){add+=nval;return;}
		if(x>m)r->update(x,y,nval);
		else if(y<=m)l->update(x,y,nval);
		else l->update(x,m,nval),r->update(m+1,y,nval);
		v=max(l->value(),r->value());
	}
	ll rmq(int x,int y){
		value();
		if(s==x&&e==y) return v;
		if(x>m) return r->rmq(x,y);
		else if(y<=m) return l->rmq(x,y);
		else return max(l->rmq(x,m),r->rmq(m+1,y));
	}
}*seg;
ll total;
int main(){
	FAST
	cin>>n;
	FOR(i,1,n)cin>>A[i], reveal[A[i]+1].pb(i);
	cin>>m;
	FOR(i,1,m){
		ll x,y,c;cin>>x>>y>>c;total+=c;
		S[x].eb(y,c);
	}
	FOR(i,1,n){
		sort(all(S[i]));
		vector<pi> tmp;
		FOR(j,0,siz(S[i])-1){
			if(tmp.empty() || tmp.back().s < S[i][j].s) tmp.eb(S[i][j]);
		}
		S[i]=tmp;
		DEC(j,siz(S[i])-1,1)S[i][j].s-=S[i][j-1].s;
		for(auto j:S[i]) row[j.f].eb(i, j.s);
	}
	seg=new node(1,n);
	FOR(i,1,n){
		for(auto j:reveal[i]) {
			if(j>1 && !ufds.same(j-1, j) && A[j-1]<=A[j]) { // j-1 and j
				ll mx1=seg->rmq(mi[ufds.find(j-1)], mx[ufds.find(j-1)]);
				ll mx2=seg->rmq(mi[ufds.find(j)],mx[ufds.find(j)]);
				seg->update(mi[ufds.find(j-1)],mx[ufds.find(j-1)],mx2);
				seg->update(mi[ufds.find(j)],mx[ufds.find(j)],mx1);
				ufds.merge(j-1,j);
			}
			if(j<n && !ufds.same(j+1, j) && A[j+1]<=A[j]) { // j+1 and j
				ll mx1=seg->rmq(mi[ufds.find(j+1)], mx[ufds.find(j+1)]);
				ll mx2=seg->rmq(mi[ufds.find(j)],mx[ufds.find(j)]);
				seg->update(mi[ufds.find(j+1)],mx[ufds.find(j+1)],mx2);
				seg->update(mi[ufds.find(j)],mx[ufds.find(j)],mx1);
				ufds.merge(j,j+1);
			}
		}
		for(auto j:row[i]){
			seg->update(j.f, j.f, j.s);
		}
		// cerr<<seg->rmq(1,n)<<'\n';
	}
	ll ans=0;
	FOR(i,1,n)if(ufds.find(i)==i){
		ans += seg->rmq(mi[i], mx[i]);
		// cerr<<seg->rmq(mi[i],mx[i])<<'\n';
	}
	cout<<total-ans<<'\n';
}

Subtask #1
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 16768 KB Output is correct
2 Correct 14 ms 16896 KB Output is correct
3 Correct 15 ms 17024 KB Output is correct
4 Correct 14 ms 16768 KB Output is correct
5 Correct 14 ms 16896 KB Output is correct
6 Correct 14 ms 16896 KB Output is correct
7 Correct 14 ms 16896 KB Output is correct
8 Correct 14 ms 16896 KB Output is correct
9 Correct 14 ms 16896 KB Output is correct
10 Correct 14 ms 16896 KB Output is correct
11 Correct 14 ms 16896 KB Output is correct
12 Correct 14 ms 16896 KB Output is correct
13 Correct 14 ms 16768 KB Output is correct
14 Correct 15 ms 16896 KB Output is correct
15 Correct 15 ms 16896 KB Output is correct
16 Correct 15 ms 17024 KB Output is correct
17 Correct 14 ms 16896 KB Output is correct
18 Correct 15 ms 16896 KB Output is correct
19 Correct 14 ms 16896 KB Output is correct
20 Correct 15 ms 16896 KB Output is correct
21 Correct 14 ms 16896 KB Output is correct
22 Correct 14 ms 16896 KB Output is correct

Subtask #2
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 16768 KB Output is correct
2 Correct 14 ms 16896 KB Output is correct
3 Correct 15 ms 17024 KB Output is correct
4 Correct 14 ms 16768 KB Output is correct
5 Correct 14 ms 16896 KB Output is correct
6 Correct 14 ms 16896 KB Output is correct
7 Correct 14 ms 16896 KB Output is correct
8 Correct 14 ms 16896 KB Output is correct
9 Correct 14 ms 16896 KB Output is correct
10 Correct 14 ms 16896 KB Output is correct
11 Correct 14 ms 16896 KB Output is correct
12 Correct 14 ms 16896 KB Output is correct
13 Correct 14 ms 16768 KB Output is correct
14 Correct 15 ms 16896 KB Output is correct
15 Correct 15 ms 16896 KB Output is correct
16 Correct 15 ms 17024 KB Output is correct
17 Correct 14 ms 16896 KB Output is correct
18 Correct 15 ms 16896 KB Output is correct
19 Correct 14 ms 16896 KB Output is correct
20 Correct 15 ms 16896 KB Output is correct
21 Correct 14 ms 16896 KB Output is correct
22 Correct 14 ms 16896 KB Output is correct
23 Correct 19 ms 17152 KB Output is correct
24 Correct 18 ms 17212 KB Output is correct
25 Correct 18 ms 17152 KB Output is correct
26 Correct 18 ms 17152 KB Output is correct
27 Correct 18 ms 17152 KB Output is correct
28 Correct 18 ms 17152 KB Output is correct
29 Correct 18 ms 17152 KB Output is correct
30 Correct 19 ms 17152 KB Output is correct
31 Correct 19 ms 17152 KB Output is correct
32 Correct 19 ms 17280 KB Output is correct
33 Correct 19 ms 17280 KB Output is correct
34 Correct 18 ms 17280 KB Output is correct
35 Correct 18 ms 17280 KB Output is correct
36 Correct 18 ms 17152 KB Output is correct
37 Correct 18 ms 17152 KB Output is correct
38 Correct 18 ms 17152 KB Output is correct
39 Correct 18 ms 17152 KB Output is correct
40 Correct 18 ms 17152 KB Output is correct
41 Correct 18 ms 17152 KB Output is correct
42 Correct 18 ms 17152 KB Output is correct
43 Correct 18 ms 17152 KB Output is correct
44 Correct 18 ms 17152 KB Output is correct

Subtask #3
65.0 / 65.0

# 결과 실행 시간 메모리 Grader output
1 Correct 15 ms 16768 KB Output is correct
2 Correct 14 ms 16896 KB Output is correct
3 Correct 15 ms 17024 KB Output is correct
4 Correct 14 ms 16768 KB Output is correct
5 Correct 14 ms 16896 KB Output is correct
6 Correct 14 ms 16896 KB Output is correct
7 Correct 14 ms 16896 KB Output is correct
8 Correct 14 ms 16896 KB Output is correct
9 Correct 14 ms 16896 KB Output is correct
10 Correct 14 ms 16896 KB Output is correct
11 Correct 14 ms 16896 KB Output is correct
12 Correct 14 ms 16896 KB Output is correct
13 Correct 14 ms 16768 KB Output is correct
14 Correct 15 ms 16896 KB Output is correct
15 Correct 15 ms 16896 KB Output is correct
16 Correct 15 ms 17024 KB Output is correct
17 Correct 14 ms 16896 KB Output is correct
18 Correct 15 ms 16896 KB Output is correct
19 Correct 14 ms 16896 KB Output is correct
20 Correct 15 ms 16896 KB Output is correct
21 Correct 14 ms 16896 KB Output is correct
22 Correct 14 ms 16896 KB Output is correct
23 Correct 19 ms 17152 KB Output is correct
24 Correct 18 ms 17212 KB Output is correct
25 Correct 18 ms 17152 KB Output is correct
26 Correct 18 ms 17152 KB Output is correct
27 Correct 18 ms 17152 KB Output is correct
28 Correct 18 ms 17152 KB Output is correct
29 Correct 18 ms 17152 KB Output is correct
30 Correct 19 ms 17152 KB Output is correct
31 Correct 19 ms 17152 KB Output is correct
32 Correct 19 ms 17280 KB Output is correct
33 Correct 19 ms 17280 KB Output is correct
34 Correct 18 ms 17280 KB Output is correct
35 Correct 18 ms 17280 KB Output is correct
36 Correct 18 ms 17152 KB Output is correct
37 Correct 18 ms 17152 KB Output is correct
38 Correct 18 ms 17152 KB Output is correct
39 Correct 18 ms 17152 KB Output is correct
40 Correct 18 ms 17152 KB Output is correct
41 Correct 18 ms 17152 KB Output is correct
42 Correct 18 ms 17152 KB Output is correct
43 Correct 18 ms 17152 KB Output is correct
44 Correct 18 ms 17152 KB Output is correct
45 Correct 948 ms 56568 KB Output is correct
46 Correct 881 ms 56056 KB Output is correct
47 Correct 906 ms 55672 KB Output is correct
48 Correct 908 ms 56440 KB Output is correct
49 Correct 872 ms 55288 KB Output is correct
50 Correct 891 ms 55288 KB Output is correct
51 Correct 892 ms 55544 KB Output is correct
52 Correct 917 ms 56312 KB Output is correct
53 Correct 891 ms 56060 KB Output is correct
54 Correct 799 ms 59000 KB Output is correct
55 Correct 802 ms 58104 KB Output is correct
56 Correct 747 ms 57848 KB Output is correct
57 Correct 732 ms 57464 KB Output is correct
58 Correct 704 ms 52600 KB Output is correct
59 Correct 708 ms 52472 KB Output is correct
60 Correct 539 ms 62200 KB Output is correct
61 Correct 662 ms 52944 KB Output is correct
62 Correct 819 ms 56568 KB Output is correct
63 Correct 647 ms 52416 KB Output is correct
64 Correct 639 ms 51924 KB Output is correct
65 Correct 831 ms 56824 KB Output is correct
66 Correct 632 ms 52176 KB Output is correct