답안 #56326 :: oj.uz

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
56326	2018-07-11T05:11:07 Z	윤교준(#1600)	Construction of Highway (JOI18_construction)	C++11	100 / 100	967 ms	84040 KB

construction

#include <bits/stdc++.h>
#define pb push_back
#define eb emplace_back
#define sz(V) ((int)(V).size())
#define allv(V) ((V).begin()),((V).end())
#define befv(V) ((V)[(sz(V)-2)])
#define sorv(V) sort(allv(V))
#define revv(V) reverse(allv(V))
#define univ(V) (V).erase(unique(allv(V)),(V).end())
#define clv(V) (V).clear()
#define upmin(a,b) (a)=min((a),(b))
#define upmax(a,b) (a)=max((a),(b))
#define rb(x) ((x)&(-(x)))
#define INF (0x3f3f3f3f)
#define INFLL (0x3f3f3f3f3f3f3f3fll)
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;

const int MAXN = 100055;

struct BIT {
	int d[MAXN];
	void upd(int x, int r) {
		for(x += 2; x < MAXN; x += rb(x))
			d[x] += r;
	}
	int get(int x) {
		int r = 0; for(x += 2; x; x -= rb(x))
			r += d[x];
		return r;
	}
} bit;

struct HLD {
	set<pii> V;
	int rprt, n;

	void init(int _n) {
		n = _n;
	}

	void get(vector<pii> &PQ, int i) {
		vector<pii> T;

		for(auto it = V.lower_bound(pii(i, -INF));; it--) {
			T.eb(min(i, it -> first), it -> second);
			if(V.begin() == it) break;
		}
		T.eb(-1, -1);

		for(int i = 1, n = sz(T), l, x; i < n; i++) {
			l = T[i-1].first - T[i].first;
			x = T[i-1].second;
			if(!l) continue;

			if(PQ.empty() || PQ.back().first != x) PQ.eb(x, l);
			else PQ.back().second += l;
		}
	}
	void upd(int i, int c) {
		for(; !V.empty();) {
			auto it = V.begin();
			if(i < it -> first) break;
			V.erase(it);
		}
		V.insert(pii(i, c));
	}
} hld[MAXN];

vector<int> G[MAXN];

int HI[MAXN], HJ[MAXN], HSZ[MAXN], Hn;

int prt[MAXN], dep[MAXN], cnt[MAXN], depo[MAXN];

int A[MAXN], B[MAXN], C[MAXN];

int N;

void f(vector<pii> &V, int i) {
	for(; i; i = hld[HI[i]].rprt)
		hld[HI[i]].get(V, HJ[i]);
}
void g(int i, int c) {
	for(; i; i = hld[HI[i]].rprt)
		hld[HI[i]].upd(HJ[i], c);
}

ll getRev(vector<pii> &V) {
	{
		vector<int> VX;
		for(auto &v : V) VX.pb(v.first);
		sorv(VX); univ(VX);
		for(auto &v : V)
			v.first = (int)(lower_bound(allv(VX), v.first) - VX.begin()) + 1;
	}

	ll ret = 0;
	for(auto &v : V) {
		ret += ll(bit.get(v.first-1)) * v.second;
		bit.upd(v.first, v.second);
	}
	for(auto &v : V) bit.upd(v.first, -v.second);
	return ret;
}

void dfs1(int i) {
	cnt[i] = 1;
	for(int v : G[i]) {
		dep[v] = dep[i] + 1;
		prt[v] = i;
		dfs1(v);
		cnt[i] += cnt[v];
	}
}
void dfs2(int i) {
	HJ[i] = HSZ[HI[i]]++;
	int hi = -1, hc = -1;
	for(int v : G[i]) {
		if(cnt[v] <= hc) continue;
		hi = v; hc = cnt[v];
	}
	if(hi < 0) return;
	HI[hi] = HI[i];
	dfs2(hi);
}

int main() {
	ios::sync_with_stdio(false);

	cin >> N;
	for(int i = 1; i <= N; i++) cin >> C[i];
	for(int i = 1; i < N; i++) cin >> A[i] >> B[i];

	for(int i = 1; i < N; i++) G[A[i]].pb(B[i]);
	dep[1] = 1; dfs1(1);

	iota(depo, depo+N+1, 0);
	sort(depo+1, depo+N+1, [&](int a, int b) { return dep[a] < dep[b]; });
	for(int oi = 1, i; oi <= N; oi++) {
		i = depo[oi];
		if(HI[i]) continue;
		Hn++; HI[i] = Hn;
		dfs2(i);
	}

	for(int i = 1; i <= Hn; i++) hld[i].init(HSZ[i]);
	for(int i = 1; i <= N; i++) {
		hld[HI[i]].V.insert(pii(HJ[i], C[i]));
		if(!HJ[i]) hld[HI[i]].rprt = prt[i];
	}

	for(int qi = 1, a, b; qi < N; qi++) {
		a = A[qi]; b = B[qi];

		vector<pii> V; f(V, a);
		printf("%lld\n", getRev(V));
		g(b, C[b]);
	}
	return 0;
}

Subtask #1
7.0 / 7.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	8312 KB	Output is correct
2	Correct	8 ms	8312 KB	Output is correct
3	Correct	10 ms	8380 KB	Output is correct
4	Correct	9 ms	8588 KB	Output is correct
5	Correct	11 ms	8588 KB	Output is correct
6	Correct	9 ms	8588 KB	Output is correct
7	Correct	11 ms	8588 KB	Output is correct
8	Correct	9 ms	8636 KB	Output is correct
9	Correct	12 ms	8636 KB	Output is correct
10	Correct	12 ms	8636 KB	Output is correct
11	Correct	11 ms	8636 KB	Output is correct
12	Correct	8 ms	8640 KB	Output is correct
13	Correct	10 ms	8652 KB	Output is correct
14	Correct	10 ms	8652 KB	Output is correct
15	Correct	10 ms	8652 KB	Output is correct
16	Correct	19 ms	8652 KB	Output is correct
17	Correct	11 ms	8704 KB	Output is correct
18	Correct	11 ms	8704 KB	Output is correct
19	Correct	11 ms	8704 KB	Output is correct
20	Correct	11 ms	8704 KB	Output is correct
21	Correct	11 ms	8704 KB	Output is correct
22	Correct	10 ms	8816 KB	Output is correct
23	Correct	11 ms	8816 KB	Output is correct
24	Correct	11 ms	8816 KB	Output is correct
25	Correct	13 ms	8816 KB	Output is correct
26	Correct	12 ms	8816 KB	Output is correct
27	Correct	10 ms	8816 KB	Output is correct
28	Correct	19 ms	8816 KB	Output is correct
29	Correct	11 ms	8816 KB	Output is correct
30	Correct	12 ms	8816 KB	Output is correct
31	Correct	10 ms	8816 KB	Output is correct
32	Correct	10 ms	8816 KB	Output is correct
33	Correct	10 ms	8816 KB	Output is correct
34	Correct	11 ms	8816 KB	Output is correct
35	Correct	11 ms	8816 KB	Output is correct
36	Correct	12 ms	8816 KB	Output is correct
37	Correct	52 ms	8816 KB	Output is correct
38	Correct	11 ms	8816 KB	Output is correct
39	Correct	10 ms	8816 KB	Output is correct
40	Correct	16 ms	8816 KB	Output is correct
41	Correct	11 ms	8816 KB	Output is correct
42	Correct	10 ms	8816 KB	Output is correct
43	Correct	10 ms	8816 KB	Output is correct
44	Correct	10 ms	8816 KB	Output is correct

Subtask #2
9.0 / 9.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	8312 KB	Output is correct
2	Correct	8 ms	8312 KB	Output is correct
3	Correct	10 ms	8380 KB	Output is correct
4	Correct	9 ms	8588 KB	Output is correct
5	Correct	11 ms	8588 KB	Output is correct
6	Correct	9 ms	8588 KB	Output is correct
7	Correct	11 ms	8588 KB	Output is correct
8	Correct	9 ms	8636 KB	Output is correct
9	Correct	12 ms	8636 KB	Output is correct
10	Correct	12 ms	8636 KB	Output is correct
11	Correct	11 ms	8636 KB	Output is correct
12	Correct	8 ms	8640 KB	Output is correct
13	Correct	10 ms	8652 KB	Output is correct
14	Correct	10 ms	8652 KB	Output is correct
15	Correct	10 ms	8652 KB	Output is correct
16	Correct	19 ms	8652 KB	Output is correct
17	Correct	11 ms	8704 KB	Output is correct
18	Correct	11 ms	8704 KB	Output is correct
19	Correct	11 ms	8704 KB	Output is correct
20	Correct	11 ms	8704 KB	Output is correct
21	Correct	11 ms	8704 KB	Output is correct
22	Correct	10 ms	8816 KB	Output is correct
23	Correct	11 ms	8816 KB	Output is correct
24	Correct	11 ms	8816 KB	Output is correct
25	Correct	13 ms	8816 KB	Output is correct
26	Correct	12 ms	8816 KB	Output is correct
27	Correct	10 ms	8816 KB	Output is correct
28	Correct	19 ms	8816 KB	Output is correct
29	Correct	11 ms	8816 KB	Output is correct
30	Correct	12 ms	8816 KB	Output is correct
31	Correct	10 ms	8816 KB	Output is correct
32	Correct	10 ms	8816 KB	Output is correct
33	Correct	10 ms	8816 KB	Output is correct
34	Correct	11 ms	8816 KB	Output is correct
35	Correct	11 ms	8816 KB	Output is correct
36	Correct	12 ms	8816 KB	Output is correct
37	Correct	52 ms	8816 KB	Output is correct
38	Correct	11 ms	8816 KB	Output is correct
39	Correct	10 ms	8816 KB	Output is correct
40	Correct	16 ms	8816 KB	Output is correct
41	Correct	11 ms	8816 KB	Output is correct
42	Correct	10 ms	8816 KB	Output is correct
43	Correct	10 ms	8816 KB	Output is correct
44	Correct	10 ms	8816 KB	Output is correct
45	Correct	13 ms	8816 KB	Output is correct
46	Correct	21 ms	9072 KB	Output is correct
47	Correct	30 ms	9072 KB	Output is correct
48	Correct	23 ms	9216 KB	Output is correct
49	Correct	15 ms	9360 KB	Output is correct
50	Correct	18 ms	9360 KB	Output is correct
51	Correct	20 ms	9360 KB	Output is correct
52	Correct	16 ms	9360 KB	Output is correct
53	Correct	15 ms	9384 KB	Output is correct
54	Correct	18 ms	9384 KB	Output is correct
55	Correct	16 ms	9384 KB	Output is correct
56	Correct	20 ms	9384 KB	Output is correct
57	Correct	24 ms	9384 KB	Output is correct
58	Correct	34 ms	9384 KB	Output is correct
59	Correct	29 ms	9384 KB	Output is correct
60	Correct	31 ms	9384 KB	Output is correct
61	Correct	18 ms	9384 KB	Output is correct
62	Correct	22 ms	9384 KB	Output is correct
63	Correct	15 ms	9384 KB	Output is correct
64	Correct	24 ms	9384 KB	Output is correct
65	Correct	29 ms	9384 KB	Output is correct
66	Correct	30 ms	9384 KB	Output is correct
67	Correct	20 ms	9384 KB	Output is correct
68	Correct	15 ms	9384 KB	Output is correct
69	Correct	15 ms	9384 KB	Output is correct
70	Correct	15 ms	9384 KB	Output is correct
71	Correct	18 ms	9384 KB	Output is correct
72	Correct	23 ms	9384 KB	Output is correct
73	Correct	23 ms	9384 KB	Output is correct
74	Correct	18 ms	9384 KB	Output is correct
75	Correct	15 ms	9384 KB	Output is correct
76	Correct	18 ms	9384 KB	Output is correct
77	Correct	15 ms	9384 KB	Output is correct
78	Correct	17 ms	9384 KB	Output is correct
79	Correct	15 ms	9384 KB	Output is correct
80	Correct	17 ms	9384 KB	Output is correct
81	Correct	17 ms	9384 KB	Output is correct
82	Correct	17 ms	9384 KB	Output is correct
83	Correct	22 ms	9384 KB	Output is correct
84	Correct	13 ms	9384 KB	Output is correct
85	Correct	19 ms	9384 KB	Output is correct
86	Correct	16 ms	9384 KB	Output is correct

Subtask #3
84.0 / 84.0

#	결과	실행 시간	메모리	Grader output
1	Correct	9 ms	8312 KB	Output is correct
2	Correct	8 ms	8312 KB	Output is correct
3	Correct	10 ms	8380 KB	Output is correct
4	Correct	9 ms	8588 KB	Output is correct
5	Correct	11 ms	8588 KB	Output is correct
6	Correct	9 ms	8588 KB	Output is correct
7	Correct	11 ms	8588 KB	Output is correct
8	Correct	9 ms	8636 KB	Output is correct
9	Correct	12 ms	8636 KB	Output is correct
10	Correct	12 ms	8636 KB	Output is correct
11	Correct	11 ms	8636 KB	Output is correct
12	Correct	8 ms	8640 KB	Output is correct
13	Correct	10 ms	8652 KB	Output is correct
14	Correct	10 ms	8652 KB	Output is correct
15	Correct	10 ms	8652 KB	Output is correct
16	Correct	19 ms	8652 KB	Output is correct
17	Correct	11 ms	8704 KB	Output is correct
18	Correct	11 ms	8704 KB	Output is correct
19	Correct	11 ms	8704 KB	Output is correct
20	Correct	11 ms	8704 KB	Output is correct
21	Correct	11 ms	8704 KB	Output is correct
22	Correct	10 ms	8816 KB	Output is correct
23	Correct	11 ms	8816 KB	Output is correct
24	Correct	11 ms	8816 KB	Output is correct
25	Correct	13 ms	8816 KB	Output is correct
26	Correct	12 ms	8816 KB	Output is correct
27	Correct	10 ms	8816 KB	Output is correct
28	Correct	19 ms	8816 KB	Output is correct
29	Correct	11 ms	8816 KB	Output is correct
30	Correct	12 ms	8816 KB	Output is correct
31	Correct	10 ms	8816 KB	Output is correct
32	Correct	10 ms	8816 KB	Output is correct
33	Correct	10 ms	8816 KB	Output is correct
34	Correct	11 ms	8816 KB	Output is correct
35	Correct	11 ms	8816 KB	Output is correct
36	Correct	12 ms	8816 KB	Output is correct
37	Correct	52 ms	8816 KB	Output is correct
38	Correct	11 ms	8816 KB	Output is correct
39	Correct	10 ms	8816 KB	Output is correct
40	Correct	16 ms	8816 KB	Output is correct
41	Correct	11 ms	8816 KB	Output is correct
42	Correct	10 ms	8816 KB	Output is correct
43	Correct	10 ms	8816 KB	Output is correct
44	Correct	10 ms	8816 KB	Output is correct
45	Correct	13 ms	8816 KB	Output is correct
46	Correct	21 ms	9072 KB	Output is correct
47	Correct	30 ms	9072 KB	Output is correct
48	Correct	23 ms	9216 KB	Output is correct
49	Correct	15 ms	9360 KB	Output is correct
50	Correct	18 ms	9360 KB	Output is correct
51	Correct	20 ms	9360 KB	Output is correct
52	Correct	16 ms	9360 KB	Output is correct
53	Correct	15 ms	9384 KB	Output is correct
54	Correct	18 ms	9384 KB	Output is correct
55	Correct	16 ms	9384 KB	Output is correct
56	Correct	20 ms	9384 KB	Output is correct
57	Correct	24 ms	9384 KB	Output is correct
58	Correct	34 ms	9384 KB	Output is correct
59	Correct	29 ms	9384 KB	Output is correct
60	Correct	31 ms	9384 KB	Output is correct
61	Correct	18 ms	9384 KB	Output is correct
62	Correct	22 ms	9384 KB	Output is correct
63	Correct	15 ms	9384 KB	Output is correct
64	Correct	24 ms	9384 KB	Output is correct
65	Correct	29 ms	9384 KB	Output is correct
66	Correct	30 ms	9384 KB	Output is correct
67	Correct	20 ms	9384 KB	Output is correct
68	Correct	15 ms	9384 KB	Output is correct
69	Correct	15 ms	9384 KB	Output is correct
70	Correct	15 ms	9384 KB	Output is correct
71	Correct	18 ms	9384 KB	Output is correct
72	Correct	23 ms	9384 KB	Output is correct
73	Correct	23 ms	9384 KB	Output is correct
74	Correct	18 ms	9384 KB	Output is correct
75	Correct	15 ms	9384 KB	Output is correct
76	Correct	18 ms	9384 KB	Output is correct
77	Correct	15 ms	9384 KB	Output is correct
78	Correct	17 ms	9384 KB	Output is correct
79	Correct	15 ms	9384 KB	Output is correct
80	Correct	17 ms	9384 KB	Output is correct
81	Correct	17 ms	9384 KB	Output is correct
82	Correct	17 ms	9384 KB	Output is correct
83	Correct	22 ms	9384 KB	Output is correct
84	Correct	13 ms	9384 KB	Output is correct
85	Correct	19 ms	9384 KB	Output is correct
86	Correct	16 ms	9384 KB	Output is correct
87	Correct	44 ms	9768 KB	Output is correct
88	Correct	117 ms	11836 KB	Output is correct
89	Correct	584 ms	19100 KB	Output is correct
90	Correct	581 ms	19100 KB	Output is correct
91	Correct	578 ms	19164 KB	Output is correct
92	Correct	305 ms	25060 KB	Output is correct
93	Correct	250 ms	27068 KB	Output is correct
94	Correct	292 ms	29080 KB	Output is correct
95	Correct	249 ms	29080 KB	Output is correct
96	Correct	310 ms	30544 KB	Output is correct
97	Correct	350 ms	32660 KB	Output is correct
98	Correct	300 ms	34972 KB	Output is correct
99	Correct	337 ms	35844 KB	Output is correct
100	Correct	835 ms	35908 KB	Output is correct
101	Correct	967 ms	37784 KB	Output is correct
102	Correct	930 ms	39916 KB	Output is correct
103	Correct	945 ms	42052 KB	Output is correct
104	Correct	254 ms	46108 KB	Output is correct
105	Correct	210 ms	48228 KB	Output is correct
106	Correct	271 ms	50184 KB	Output is correct
107	Correct	511 ms	50184 KB	Output is correct
108	Correct	415 ms	50700 KB	Output is correct
109	Correct	560 ms	52524 KB	Output is correct
110	Correct	233 ms	59872 KB	Output is correct
111	Correct	259 ms	59872 KB	Output is correct
112	Correct	249 ms	60496 KB	Output is correct
113	Correct	232 ms	61068 KB	Output is correct
114	Correct	783 ms	61068 KB	Output is correct
115	Correct	865 ms	62368 KB	Output is correct
116	Correct	293 ms	65736 KB	Output is correct
117	Correct	239 ms	66344 KB	Output is correct
118	Correct	243 ms	67860 KB	Output is correct
119	Correct	276 ms	69500 KB	Output is correct
120	Correct	257 ms	71576 KB	Output is correct
121	Correct	273 ms	72732 KB	Output is correct
122	Correct	267 ms	74012 KB	Output is correct
123	Correct	335 ms	76536 KB	Output is correct
124	Correct	309 ms	77896 KB	Output is correct
125	Correct	301 ms	79552 KB	Output is correct
126	Correct	293 ms	81664 KB	Output is correct
127	Correct	309 ms	82784 KB	Output is correct
128	Correct	281 ms	84040 KB	Output is correct

답안 #56326

Compilation message

Subtask #1 7.0 / 7.0

Subtask #2 9.0 / 9.0

Subtask #3 84.0 / 84.0

Subtask #1
7.0 / 7.0

Subtask #2
9.0 / 9.0

Subtask #3
84.0 / 84.0