oj.uz

답안 #131955

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
131955 2019-07-18T06:25:07 Z 윤교준(#3190) Construction of Highway (JOI18_construction) C++14
100 / 100
 695 ms 24572 KB 
#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 9 ms 8188 KB Output is correct
3 Correct 9 ms 8184 KB Output is correct
4 Correct 9 ms 8312 KB Output is correct
5 Correct 10 ms 8312 KB Output is correct
6 Correct 10 ms 8312 KB Output is correct
7 Correct 9 ms 8312 KB Output is correct
8 Correct 9 ms 8312 KB Output is correct
9 Correct 9 ms 8312 KB Output is correct
10 Correct 9 ms 8312 KB Output is correct
11 Correct 10 ms 8312 KB Output is correct
12 Correct 9 ms 8312 KB Output is correct
13 Correct 10 ms 8312 KB Output is correct
14 Correct 10 ms 8312 KB Output is correct
15 Correct 10 ms 8312 KB Output is correct
16 Correct 10 ms 8312 KB Output is correct
17 Correct 11 ms 8312 KB Output is correct
18 Correct 10 ms 8312 KB Output is correct
19 Correct 10 ms 8360 KB Output is correct
20 Correct 10 ms 8312 KB Output is correct
21 Correct 10 ms 8288 KB Output is correct
22 Correct 10 ms 8312 KB Output is correct
23 Correct 10 ms 8312 KB Output is correct
24 Correct 10 ms 8312 KB Output is correct
25 Correct 10 ms 8312 KB Output is correct
26 Correct 9 ms 8312 KB Output is correct
27 Correct 10 ms 8440 KB Output is correct
28 Correct 10 ms 8312 KB Output is correct
29 Correct 9 ms 8316 KB Output is correct
30 Correct 10 ms 8312 KB Output is correct
31 Correct 10 ms 8440 KB Output is correct
32 Correct 10 ms 8312 KB Output is correct
33 Correct 9 ms 8312 KB Output is correct
34 Correct 9 ms 8312 KB Output is correct
35 Correct 11 ms 8312 KB Output is correct
36 Correct 10 ms 8312 KB Output is correct
37 Correct 9 ms 8312 KB Output is correct
38 Correct 10 ms 8312 KB Output is correct
39 Correct 10 ms 8312 KB Output is correct
40 Correct 11 ms 8312 KB Output is correct
41 Correct 10 ms 8312 KB Output is correct
42 Correct 10 ms 8312 KB Output is correct
43 Correct 9 ms 8312 KB Output is correct
44 Correct 10 ms 8440 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 9 ms 8188 KB Output is correct
3 Correct 9 ms 8184 KB Output is correct
4 Correct 9 ms 8312 KB Output is correct
5 Correct 10 ms 8312 KB Output is correct
6 Correct 10 ms 8312 KB Output is correct
7 Correct 9 ms 8312 KB Output is correct
8 Correct 9 ms 8312 KB Output is correct
9 Correct 9 ms 8312 KB Output is correct
10 Correct 9 ms 8312 KB Output is correct
11 Correct 10 ms 8312 KB Output is correct
12 Correct 9 ms 8312 KB Output is correct
13 Correct 10 ms 8312 KB Output is correct
14 Correct 10 ms 8312 KB Output is correct
15 Correct 10 ms 8312 KB Output is correct
16 Correct 10 ms 8312 KB Output is correct
17 Correct 11 ms 8312 KB Output is correct
18 Correct 10 ms 8312 KB Output is correct
19 Correct 10 ms 8360 KB Output is correct
20 Correct 10 ms 8312 KB Output is correct
21 Correct 10 ms 8288 KB Output is correct
22 Correct 10 ms 8312 KB Output is correct
23 Correct 10 ms 8312 KB Output is correct
24 Correct 10 ms 8312 KB Output is correct
25 Correct 10 ms 8312 KB Output is correct
26 Correct 9 ms 8312 KB Output is correct
27 Correct 10 ms 8440 KB Output is correct
28 Correct 10 ms 8312 KB Output is correct
29 Correct 9 ms 8316 KB Output is correct
30 Correct 10 ms 8312 KB Output is correct
31 Correct 10 ms 8440 KB Output is correct
32 Correct 10 ms 8312 KB Output is correct
33 Correct 9 ms 8312 KB Output is correct
34 Correct 9 ms 8312 KB Output is correct
35 Correct 11 ms 8312 KB Output is correct
36 Correct 10 ms 8312 KB Output is correct
37 Correct 9 ms 8312 KB Output is correct
38 Correct 10 ms 8312 KB Output is correct
39 Correct 10 ms 8312 KB Output is correct
40 Correct 11 ms 8312 KB Output is correct
41 Correct 10 ms 8312 KB Output is correct
42 Correct 10 ms 8312 KB Output is correct
43 Correct 9 ms 8312 KB Output is correct
44 Correct 10 ms 8440 KB Output is correct
45 Correct 11 ms 8312 KB Output is correct
46 Correct 19 ms 8696 KB Output is correct
47 Correct 19 ms 8696 KB Output is correct
48 Correct 18 ms 8612 KB Output is correct
49 Correct 16 ms 8824 KB Output is correct
50 Correct 14 ms 8892 KB Output is correct
51 Correct 15 ms 8972 KB Output is correct
52 Correct 15 ms 8824 KB Output is correct
53 Correct 15 ms 8824 KB Output is correct
54 Correct 15 ms 8824 KB Output is correct
55 Correct 15 ms 8824 KB Output is correct
56 Correct 15 ms 8824 KB Output is correct
57 Correct 23 ms 8696 KB Output is correct
58 Correct 24 ms 8696 KB Output is correct
59 Correct 24 ms 8696 KB Output is correct
60 Correct 24 ms 8696 KB Output is correct
61 Correct 15 ms 8824 KB Output is correct
62 Correct 15 ms 8696 KB Output is correct
63 Correct 15 ms 8696 KB Output is correct
64 Correct 17 ms 8696 KB Output is correct
65 Correct 18 ms 8700 KB Output is correct
66 Correct 19 ms 8696 KB Output is correct
67 Correct 19 ms 8696 KB Output is correct
68 Correct 14 ms 8952 KB Output is correct
69 Correct 15 ms 8824 KB Output is correct
70 Correct 15 ms 8824 KB Output is correct
71 Correct 14 ms 8824 KB Output is correct
72 Correct 22 ms 8696 KB Output is correct
73 Correct 24 ms 8696 KB Output is correct
74 Correct 15 ms 8824 KB Output is correct
75 Correct 15 ms 8696 KB Output is correct
76 Correct 15 ms 8696 KB Output is correct
77 Correct 15 ms 8696 KB Output is correct
78 Correct 15 ms 8696 KB Output is correct
79 Correct 14 ms 8696 KB Output is correct
80 Correct 14 ms 8696 KB Output is correct
81 Correct 15 ms 8696 KB Output is correct
82 Correct 15 ms 8696 KB Output is correct
83 Correct 16 ms 8696 KB Output is correct
84 Correct 15 ms 8696 KB Output is correct
85 Correct 15 ms 8696 KB Output is correct
86 Correct 15 ms 8696 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 9 ms 8188 KB Output is correct
3 Correct 9 ms 8184 KB Output is correct
4 Correct 9 ms 8312 KB Output is correct
5 Correct 10 ms 8312 KB Output is correct
6 Correct 10 ms 8312 KB Output is correct
7 Correct 9 ms 8312 KB Output is correct
8 Correct 9 ms 8312 KB Output is correct
9 Correct 9 ms 8312 KB Output is correct
10 Correct 9 ms 8312 KB Output is correct
11 Correct 10 ms 8312 KB Output is correct
12 Correct 9 ms 8312 KB Output is correct
13 Correct 10 ms 8312 KB Output is correct
14 Correct 10 ms 8312 KB Output is correct
15 Correct 10 ms 8312 KB Output is correct
16 Correct 10 ms 8312 KB Output is correct
17 Correct 11 ms 8312 KB Output is correct
18 Correct 10 ms 8312 KB Output is correct
19 Correct 10 ms 8360 KB Output is correct
20 Correct 10 ms 8312 KB Output is correct
21 Correct 10 ms 8288 KB Output is correct
22 Correct 10 ms 8312 KB Output is correct
23 Correct 10 ms 8312 KB Output is correct
24 Correct 10 ms 8312 KB Output is correct
25 Correct 10 ms 8312 KB Output is correct
26 Correct 9 ms 8312 KB Output is correct
27 Correct 10 ms 8440 KB Output is correct
28 Correct 10 ms 8312 KB Output is correct
29 Correct 9 ms 8316 KB Output is correct
30 Correct 10 ms 8312 KB Output is correct
31 Correct 10 ms 8440 KB Output is correct
32 Correct 10 ms 8312 KB Output is correct
33 Correct 9 ms 8312 KB Output is correct
34 Correct 9 ms 8312 KB Output is correct
35 Correct 11 ms 8312 KB Output is correct
36 Correct 10 ms 8312 KB Output is correct
37 Correct 9 ms 8312 KB Output is correct
38 Correct 10 ms 8312 KB Output is correct
39 Correct 10 ms 8312 KB Output is correct
40 Correct 11 ms 8312 KB Output is correct
41 Correct 10 ms 8312 KB Output is correct
42 Correct 10 ms 8312 KB Output is correct
43 Correct 9 ms 8312 KB Output is correct
44 Correct 10 ms 8440 KB Output is correct
45 Correct 11 ms 8312 KB Output is correct
46 Correct 19 ms 8696 KB Output is correct
47 Correct 19 ms 8696 KB Output is correct
48 Correct 18 ms 8612 KB Output is correct
49 Correct 16 ms 8824 KB Output is correct
50 Correct 14 ms 8892 KB Output is correct
51 Correct 15 ms 8972 KB Output is correct
52 Correct 15 ms 8824 KB Output is correct
53 Correct 15 ms 8824 KB Output is correct
54 Correct 15 ms 8824 KB Output is correct
55 Correct 15 ms 8824 KB Output is correct
56 Correct 15 ms 8824 KB Output is correct
57 Correct 23 ms 8696 KB Output is correct
58 Correct 24 ms 8696 KB Output is correct
59 Correct 24 ms 8696 KB Output is correct
60 Correct 24 ms 8696 KB Output is correct
61 Correct 15 ms 8824 KB Output is correct
62 Correct 15 ms 8696 KB Output is correct
63 Correct 15 ms 8696 KB Output is correct
64 Correct 17 ms 8696 KB Output is correct
65 Correct 18 ms 8700 KB Output is correct
66 Correct 19 ms 8696 KB Output is correct
67 Correct 19 ms 8696 KB Output is correct
68 Correct 14 ms 8952 KB Output is correct
69 Correct 15 ms 8824 KB Output is correct
70 Correct 15 ms 8824 KB Output is correct
71 Correct 14 ms 8824 KB Output is correct
72 Correct 22 ms 8696 KB Output is correct
73 Correct 24 ms 8696 KB Output is correct
74 Correct 15 ms 8824 KB Output is correct
75 Correct 15 ms 8696 KB Output is correct
76 Correct 15 ms 8696 KB Output is correct
77 Correct 15 ms 8696 KB Output is correct
78 Correct 15 ms 8696 KB Output is correct
79 Correct 14 ms 8696 KB Output is correct
80 Correct 14 ms 8696 KB Output is correct
81 Correct 15 ms 8696 KB Output is correct
82 Correct 15 ms 8696 KB Output is correct
83 Correct 16 ms 8696 KB Output is correct
84 Correct 15 ms 8696 KB Output is correct
85 Correct 15 ms 8696 KB Output is correct
86 Correct 15 ms 8696 KB Output is correct
87 Correct 36 ms 9308 KB Output is correct
88 Correct 106 ms 11384 KB Output is correct
89 Correct 431 ms 18552 KB Output is correct
90 Correct 457 ms 18552 KB Output is correct
91 Correct 407 ms 18476 KB Output is correct
92 Correct 212 ms 24464 KB Output is correct
93 Correct 194 ms 24440 KB Output is correct
94 Correct 196 ms 24440 KB Output is correct
95 Correct 207 ms 21960 KB Output is correct
96 Correct 215 ms 22000 KB Output is correct
97 Correct 215 ms 21992 KB Output is correct
98 Correct 219 ms 21964 KB Output is correct
99 Correct 201 ms 20856 KB Output is correct
100 Correct 593 ms 19028 KB Output is correct
101 Correct 680 ms 18932 KB Output is correct
102 Correct 679 ms 19064 KB Output is correct
103 Correct 658 ms 19196 KB Output is correct
104 Correct 210 ms 20856 KB Output is correct
105 Correct 211 ms 20856 KB Output is correct
106 Correct 196 ms 20856 KB Output is correct
107 Correct 350 ms 18600 KB Output is correct
108 Correct 432 ms 18536 KB Output is correct
109 Correct 411 ms 18552 KB Output is correct
110 Correct 192 ms 24572 KB Output is correct
111 Correct 211 ms 22096 KB Output is correct
112 Correct 202 ms 21924 KB Output is correct
113 Correct 185 ms 20820 KB Output is correct
114 Correct 589 ms 18988 KB Output is correct
115 Correct 695 ms 19032 KB Output is correct
116 Correct 200 ms 20856 KB Output is correct
117 Correct 198 ms 19704 KB Output is correct
118 Correct 201 ms 19256 KB Output is correct
119 Correct 204 ms 19064 KB Output is correct
120 Correct 224 ms 19704 KB Output is correct
121 Correct 217 ms 19236 KB Output is correct
122 Correct 199 ms 19192 KB Output is correct
123 Correct 217 ms 19740 KB Output is correct
124 Correct 229 ms 19296 KB Output is correct
125 Correct 216 ms 19064 KB Output is correct
126 Correct 222 ms 19704 KB Output is correct
127 Correct 222 ms 19396 KB Output is correct
128 Correct 235 ms 19320 KB Output is correct