답안 #760664

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
760664	2023-06-18T05:41:06 Z	ymm	낙하산 고리들 (IOI12_rings)	C++17	100 / 100	1110 ms	130160 KB

rings

#include <bits/stdc++.h>
#define Loop(x,l,r)  for (ll x = (l); x < (r); ++x)
#define LoopR(x,l,r) for (ll x = (r)-1; x >= (l); --x)
typedef long long ll;
typedef std::pair<int,int> pii;
using namespace std;

const int N = 1<<20;
vector<int> A[N];
int n;

struct graph {
	int deg[N];
	int rem;
	int par[N];
	bool has3;
	int sz[N];
	int szc;

	void init() {
		fill(par, par+N, -1);
		fill(sz, sz+N, 1);
		szc = -1;
		rem = -1;
	}
	int rt(int v) { return par[v] == -1? v: (par[v] = rt(par[v])); }
	void unite(int v, int u) {
		if (v == rem || u == rem)
			return;
		deg[v]++;
		deg[u]++;
		if (deg[v] >= 3 || deg[u] >= 3)
			has3 = 1;
		v = rt(v);
		u = rt(u);
		if (v == u) {
			szc = szc == -1? sz[v]: -2;
			return;
		}
		if (sz[v] < sz[u])
			swap(v, u);
		par[u] = v;
		sz[v] += sz[u];
	}
};

void make_by_rem(graph &G, int rem) {
	G.init();
	G.rem = rem;
	Loop (v,0,n) {
		for (int u : A[v]) {
			if (v > u)
				continue;
			G.unite(v, u);
		}
	}
}

graph G, G3[4];

int v3 = -1;

void Init(int N_) {
	n = N_;
	G.init();
}

void Link(int v, int u) {
	A[v].push_back(u);
	A[u].push_back(v);

	if (v3 != -1) {
		for (auto &G : G3)
			G.unite(v, u);
	} else {
		G.unite(v, u);
	}

	for (int x : {v, u}) {
		if (v3 == -1 && A[x].size() == 3) {
			v3 = x;
			make_by_rem(G3[0], x);
			Loop (i,0,3)
				make_by_rem(G3[i+1], A[x][i]);
		}
	}
}

int CountCritical() {
	if (v3 != -1) {
		int ans = 0;
		for (auto &G : G3)
			ans += G.szc == -1 && !G.has3;
		return ans;
	} else {
		switch (G.szc) {
		case -2: return 0;
		case -1: return n;
		default: return G.szc;
		}
	}
}

Subtask #1
20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	19 ms	33108 KB	Output is correct
2	Correct	39 ms	66260 KB	Output is correct
3	Correct	30 ms	66216 KB	Output is correct
4	Correct	17 ms	33196 KB	Output is correct
5	Correct	17 ms	33236 KB	Output is correct
6	Correct	19 ms	33296 KB	Output is correct
7	Correct	37 ms	66064 KB	Output is correct
8	Correct	18 ms	33284 KB	Output is correct
9	Correct	34 ms	66296 KB	Output is correct
10	Correct	36 ms	66224 KB	Output is correct

Subtask #2
17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	297 ms	51884 KB	Output is correct
2	Correct	862 ms	106864 KB	Output is correct
3	Correct	1052 ms	113060 KB	Output is correct
4	Correct	878 ms	68488 KB	Output is correct
5	Correct	847 ms	81704 KB	Output is correct
6	Correct	806 ms	80212 KB	Output is correct
7	Correct	1036 ms	124428 KB	Output is correct
8	Correct	1110 ms	126100 KB	Output is correct
9	Correct	1109 ms	130160 KB	Output is correct
10	Correct	457 ms	79200 KB	Output is correct

Subtask #3
18.0 / 18.0

#	결과	실행 시간	메모리	Grader output
1	Correct	19 ms	33108 KB	Output is correct
2	Correct	39 ms	66260 KB	Output is correct
3	Correct	30 ms	66216 KB	Output is correct
4	Correct	17 ms	33196 KB	Output is correct
5	Correct	17 ms	33236 KB	Output is correct
6	Correct	19 ms	33296 KB	Output is correct
7	Correct	37 ms	66064 KB	Output is correct
8	Correct	18 ms	33284 KB	Output is correct
9	Correct	34 ms	66296 KB	Output is correct
10	Correct	36 ms	66224 KB	Output is correct
11	Correct	27 ms	66316 KB	Output is correct
12	Correct	32 ms	66636 KB	Output is correct
13	Correct	45 ms	66616 KB	Output is correct
14	Correct	49 ms	66432 KB	Output is correct
15	Correct	31 ms	66468 KB	Output is correct
16	Correct	19 ms	33604 KB	Output is correct
17	Correct	42 ms	66628 KB	Output is correct
18	Correct	32 ms	66804 KB	Output is correct
19	Correct	20 ms	33608 KB	Output is correct
20	Correct	32 ms	66644 KB	Output is correct

Subtask #4
14.0 / 14.0

#	결과	실행 시간	메모리	Grader output
1	Correct	19 ms	33108 KB	Output is correct
2	Correct	39 ms	66260 KB	Output is correct
3	Correct	30 ms	66216 KB	Output is correct
4	Correct	17 ms	33196 KB	Output is correct
5	Correct	17 ms	33236 KB	Output is correct
6	Correct	19 ms	33296 KB	Output is correct
7	Correct	37 ms	66064 KB	Output is correct
8	Correct	18 ms	33284 KB	Output is correct
9	Correct	34 ms	66296 KB	Output is correct
10	Correct	36 ms	66224 KB	Output is correct
11	Correct	27 ms	66316 KB	Output is correct
12	Correct	32 ms	66636 KB	Output is correct
13	Correct	45 ms	66616 KB	Output is correct
14	Correct	49 ms	66432 KB	Output is correct
15	Correct	31 ms	66468 KB	Output is correct
16	Correct	19 ms	33604 KB	Output is correct
17	Correct	42 ms	66628 KB	Output is correct
18	Correct	32 ms	66804 KB	Output is correct
19	Correct	20 ms	33608 KB	Output is correct
20	Correct	32 ms	66644 KB	Output is correct
21	Correct	30 ms	34700 KB	Output is correct
22	Correct	49 ms	35664 KB	Output is correct
23	Correct	46 ms	36308 KB	Output is correct
24	Correct	68 ms	69808 KB	Output is correct
25	Correct	37 ms	68172 KB	Output is correct
26	Correct	63 ms	70776 KB	Output is correct
27	Correct	45 ms	37208 KB	Output is correct
28	Correct	68 ms	71476 KB	Output is correct
29	Correct	50 ms	70092 KB	Output is correct
30	Correct	46 ms	37784 KB	Output is correct

Subtask #5
31.0 / 31.0

#	결과	실행 시간	메모리	Grader output
1	Correct	19 ms	33108 KB	Output is correct
2	Correct	39 ms	66260 KB	Output is correct
3	Correct	30 ms	66216 KB	Output is correct
4	Correct	17 ms	33196 KB	Output is correct
5	Correct	17 ms	33236 KB	Output is correct
6	Correct	19 ms	33296 KB	Output is correct
7	Correct	37 ms	66064 KB	Output is correct
8	Correct	18 ms	33284 KB	Output is correct
9	Correct	34 ms	66296 KB	Output is correct
10	Correct	36 ms	66224 KB	Output is correct
11	Correct	297 ms	51884 KB	Output is correct
12	Correct	862 ms	106864 KB	Output is correct
13	Correct	1052 ms	113060 KB	Output is correct
14	Correct	878 ms	68488 KB	Output is correct
15	Correct	847 ms	81704 KB	Output is correct
16	Correct	806 ms	80212 KB	Output is correct
17	Correct	1036 ms	124428 KB	Output is correct
18	Correct	1110 ms	126100 KB	Output is correct
19	Correct	1109 ms	130160 KB	Output is correct
20	Correct	457 ms	79200 KB	Output is correct
21	Correct	27 ms	66316 KB	Output is correct
22	Correct	32 ms	66636 KB	Output is correct
23	Correct	45 ms	66616 KB	Output is correct
24	Correct	49 ms	66432 KB	Output is correct
25	Correct	31 ms	66468 KB	Output is correct
26	Correct	19 ms	33604 KB	Output is correct
27	Correct	42 ms	66628 KB	Output is correct
28	Correct	32 ms	66804 KB	Output is correct
29	Correct	20 ms	33608 KB	Output is correct
30	Correct	32 ms	66644 KB	Output is correct
31	Correct	30 ms	34700 KB	Output is correct
32	Correct	49 ms	35664 KB	Output is correct
33	Correct	46 ms	36308 KB	Output is correct
34	Correct	68 ms	69808 KB	Output is correct
35	Correct	37 ms	68172 KB	Output is correct
36	Correct	63 ms	70776 KB	Output is correct
37	Correct	45 ms	37208 KB	Output is correct
38	Correct	68 ms	71476 KB	Output is correct
39	Correct	50 ms	70092 KB	Output is correct
40	Correct	46 ms	37784 KB	Output is correct
41	Correct	161 ms	47160 KB	Output is correct
42	Correct	482 ms	105304 KB	Output is correct
43	Correct	260 ms	87924 KB	Output is correct
44	Correct	702 ms	124168 KB	Output is correct
45	Correct	751 ms	115520 KB	Output is correct
46	Correct	574 ms	74472 KB	Output is correct
47	Correct	686 ms	75156 KB	Output is correct
48	Correct	513 ms	108448 KB	Output is correct
49	Correct	439 ms	73072 KB	Output is correct
50	Correct	516 ms	72672 KB	Output is correct
51	Correct	299 ms	89980 KB	Output is correct
52	Correct	633 ms	113544 KB	Output is correct
53	Correct	520 ms	108884 KB	Output is correct
54	Correct	998 ms	118780 KB	Output is correct
55	Correct	974 ms	123108 KB	Output is correct

답안 #760664

Compilation message

Subtask #1 20.0 / 20.0

Subtask #2 17.0 / 17.0

Subtask #3 18.0 / 18.0

Subtask #4 14.0 / 14.0

Subtask #5 31.0 / 31.0

Subtask #1
20.0 / 20.0

Subtask #2
17.0 / 17.0

Subtask #3
18.0 / 18.0

Subtask #4
14.0 / 14.0

Subtask #5
31.0 / 31.0