답안 #676959

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
676959	2023-01-01T18:29:03 Z	ymm	Amusement Park (JOI17_amusement_park)	C++17	100 / 100	20 ms	4548 KB

Joi

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

namespace shared_joi {
	const int M = 60;
	const int N = 16384;
	vector<int> A[N];
	int par[N], dis[N];
	bool dia[N];
	int bit[N];
	int s, t;
	int n;

	namespace dsu {
		int par[N];
		int rt(int v) {return par[v]==-1?v:(par[v]=rt(par[v]));}
		bool unite(int v, int u) {
			v = rt(v);
			u = rt(u);
			if (v == u)
				return 0;
			par[u] = v;
			return 1;
		}
	}

	pii dfs(int v, int p, int h) {
		par[v] = p;
		dis[v] = h;
		pii ans = {h, v};
		for (int u : A[v]) {
			if (u == p)
				continue;
			ans = max(ans, dfs(u, v, h+1));
		}
		return ans;
	}
	
	vector<int> ord;

	void dfs2(int v, int p, int &rem) {
		ord.push_back(v);
		int d = -1;
		for (int u : A[v]) {
			if (u == p)
				continue;
			if (dia[u]) {
				d = u;
				continue;
			}
			if (!rem)
				continue;
			--rem;
			dfs2(u, v, rem);
			ord.push_back(v);
		}
		if (d != -1)
			dfs2(d, v, rem);
	}

	void init(int _n, int m, int V[], int U[]) {
		n = _n;
		memset(dsu::par, -1, sizeof(dsu::par));
		Loop (i,0,m) {
			if (!dsu::unite(V[i], U[i]))
				continue;
			A[V[i]].push_back(U[i]);
			A[U[i]].push_back(V[i]);
		}
		s = dfs(0, -1, 0).second;
		t = dfs(s, -1, 0).second;
		for (int v = t; v != -1; v = par[v])
			dia[v] = 1;
		if (dis[t] >= (M-1)) {
			Loop (i,0,n)
				bit[i] = dis[i]%M;
			return;
		}
		memset(bit, -1, sizeof(bit));
		dfs2(s, -1, *new int((M-1)-dis[t]));
		int nxt = 0;
		for (int v : ord) {
			if (bit[v] == -1)
				bit[v] = nxt++;
		}
		assert(nxt == M);
		assert(ord[0] == s);
	}
}
using namespace shared_joi;

void Joi(int N, int M, int A[], int B[], long long X, int T)
{
	init(N, M, A, B);
	Loop (i,0,N) {
		int x = bit[i] == -1? 0: ((X >> bit[i]) & 1);
		MessageBoard(i, x);
	}
}

Ioi

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

namespace shared_ioi {
	const int M = 60;
	const int N = 16384;
	vector<int> A[N];
	int par[N], dis[N];
	bool dia[N];
	int bit[N];
	int s, t;
	int n;

	namespace dsu {
		int par[N];
		int rt(int v) {return par[v]==-1?v:(par[v]=rt(par[v]));}
		bool unite(int v, int u) {
			v = rt(v);
			u = rt(u);
			if (v == u)
				return 0;
			par[u] = v;
			return 1;
		}
	}

	pii dfs(int v, int p, int h) {
		par[v] = p;
		dis[v] = h;
		pii ans = {h, v};
		for (int u : A[v]) {
			if (u == p)
				continue;
			ans = max(ans, dfs(u, v, h+1));
		}
		return ans;
	}
	
	vector<int> ord;

	void dfs2(int v, int p, int &rem) {
		ord.push_back(v);
		int d = -1;
		for (int u : A[v]) {
			if (u == p)
				continue;
			if (dia[u]) {
				d = u;
				continue;
			}
			if (!rem)
				continue;
			--rem;
			dfs2(u, v, rem);
			ord.push_back(v);
		}
		if (d != -1)
			dfs2(d, v, rem);
	}

	void init(int _n, int m, int V[], int U[]) {
		n = _n;
		memset(dsu::par, -1, sizeof(dsu::par));
		Loop (i,0,m) {
			if (!dsu::unite(V[i], U[i]))
				continue;
			A[V[i]].push_back(U[i]);
			A[U[i]].push_back(V[i]);
		}
		s = dfs(0, -1, 0).second;
		t = dfs(s, -1, 0).second;
		for (int v = t; v != -1; v = par[v])
			dia[v] = 1;
		if (dis[t] >= (M-1)) {
			Loop (i,0,n)
				bit[i] = dis[i]%M;
			return;
		}
		memset(bit, -1, sizeof(bit));
		dfs2(s, -1, *new int((M-1)-dis[t]));
		int nxt = 0;
		for (int v : ord) {
			if (bit[v] == -1)
				bit[v] = nxt++;
		}
		assert(nxt == M);
	}
}
using namespace shared_ioi;

int cur;
void mov(int v)
{
	cur = Move(v);
}

ll ans = 0;
void up(int bit, bool val)
{
	ans |= (ll)val << bit;
}

void solve1(int v)
{
	if (dis[v] >= (M-1)) {
		up(bit[v], cur);
		Loop (_,0,(M-1)) {
			mov(par[v]);
			v = par[v];
			up(bit[v], cur);
		}
	} else {
		while (v != s) {
			mov(par[v]);
			v = par[v];
		}
		up(bit[v], cur);
		Loop (_,0,(M-1)) {
			for (int u : A[v]) {
				if (u == par[v] || !dia[u])
					continue;
				mov(u);
				v = u;
				up(bit[v], cur);
				break;
			}
		}
	}
}

void solve2(int v)
{
	while (v != s) {
		mov(par[v]);
		v = par[v];
	}
	up(bit[v], cur);
	Loop (i,1,ord.size()) {
		int u = ord[i];
		mov(u);
		v = u;
		up(bit[v], cur);
	}
}

long long Ioi(int _n, int _m, int A[], int B[], int P, int V, int T)
{
	init(_n, _m, A, B);
	cur = V;
	if (dis[t] >= (M-1))
		solve1(P);
	else
		solve2(P);
	return ans;
}

Subtask #1

8.0 / 8.0

#	결과	실행 시간	메모리	Grader output
1	Correct	1 ms	1536 KB	Output is correct
2	Correct	1 ms	1536 KB	Output is correct
3	Correct	2 ms	1796 KB	Output is correct
4	Correct	2 ms	1544 KB	Output is correct
5	Correct	1 ms	1512 KB	Output is correct
6	Correct	2 ms	1668 KB	Output is correct
7	Correct	2 ms	1548 KB	Output is correct
8	Correct	2 ms	1808 KB	Output is correct
9	Correct	2 ms	1800 KB	Output is correct
10	Correct	1 ms	1552 KB	Output is correct
11	Correct	4 ms	2004 KB	Output is correct
12	Correct	2 ms	1676 KB	Output is correct
13	Correct	2 ms	1812 KB	Output is correct
14	Correct	2 ms	1800 KB	Output is correct
15	Correct	2 ms	1776 KB	Output is correct
16	Correct	2 ms	1780 KB	Output is correct
17	Correct	2 ms	1808 KB	Output is correct
18	Correct	2 ms	1796 KB	Output is correct

Subtask #2

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	19 ms	3756 KB	Output is correct
2	Correct	20 ms	4188 KB	Output is correct
3	Correct	20 ms	4072 KB	Output is correct
4	Correct	14 ms	3464 KB	Output is correct
5	Correct	13 ms	4548 KB	Output is correct
6	Correct	13 ms	3876 KB	Output is correct
7	Correct	13 ms	3948 KB	Output is correct
8	Correct	13 ms	3864 KB	Output is correct
9	Correct	16 ms	3848 KB	Output is correct
10	Correct	11 ms	3492 KB	Output is correct
11	Correct	16 ms	3488 KB	Output is correct
12	Correct	12 ms	3352 KB	Output is correct
13	Correct	11 ms	3340 KB	Output is correct
14	Correct	12 ms	3344 KB	Output is correct
15	Correct	13 ms	3364 KB	Output is correct
16	Correct	14 ms	3480 KB	Output is correct
17	Correct	13 ms	3356 KB	Output is correct
18	Correct	13 ms	3488 KB	Output is correct
19	Correct	13 ms	3460 KB	Output is correct
20	Correct	12 ms	3992 KB	Output is correct
21	Correct	11 ms	3984 KB	Output is correct
22	Correct	15 ms	4004 KB	Output is correct
23	Correct	14 ms	4108 KB	Output is correct
24	Correct	13 ms	4008 KB	Output is correct
25	Correct	13 ms	3884 KB	Output is correct
26	Correct	13 ms	3964 KB	Output is correct
27	Correct	13 ms	3988 KB	Output is correct
28	Correct	13 ms	4008 KB	Output is correct
29	Correct	12 ms	3836 KB	Output is correct
30	Correct	14 ms	3880 KB	Output is correct
31	Correct	1 ms	1648 KB	Output is correct
32	Correct	2 ms	1676 KB	Output is correct
33	Correct	2 ms	1808 KB	Output is correct
34	Correct	1 ms	1676 KB	Output is correct
35	Correct	2 ms	1500 KB	Output is correct
36	Correct	2 ms	1548 KB	Output is correct
37	Correct	2 ms	1536 KB	Output is correct
38	Correct	2 ms	1676 KB	Output is correct
39	Correct	2 ms	1668 KB	Output is correct
40	Correct	2 ms	1548 KB	Output is correct
41	Correct	2 ms	1548 KB	Output is correct
42	Correct	2 ms	1676 KB	Output is correct

Subtask #3

10.0 / 10.0

#	결과	실행 시간	메모리	Grader output
1	Correct	2 ms	1540 KB	Output is correct
2	Correct	1 ms	1536 KB	Output is correct
3	Correct	2 ms	1536 KB	Output is correct
4	Correct	3 ms	1956 KB	Output is correct
5	Correct	3 ms	1948 KB	Output is correct
6	Correct	2 ms	1948 KB	Output is correct
7	Correct	2 ms	1964 KB	Output is correct
8	Correct	2 ms	2084 KB	Output is correct
9	Correct	13 ms	4420 KB	Output is correct
10	Correct	11 ms	4428 KB	Output is correct
11	Correct	11 ms	4432 KB	Output is correct
12	Correct	1 ms	1544 KB	Output is correct
13	Correct	1 ms	1544 KB	Output is correct
14	Correct	1 ms	1540 KB	Output is correct
15	Correct	1 ms	1536 KB	Output is correct

Subtask #4

55.0 / 55.0

#	결과	실행 시간	메모리	Grader output
1	Correct	20 ms	3820 KB	Output is correct
2	Correct	20 ms	4188 KB	Output is correct
3	Correct	20 ms	4200 KB	Output is correct
4	Correct	15 ms	3600 KB	Output is correct
5	Correct	13 ms	4500 KB	Output is correct
6	Correct	15 ms	3888 KB	Output is correct
7	Correct	13 ms	3880 KB	Output is correct
8	Correct	13 ms	3880 KB	Output is correct
9	Correct	13 ms	3888 KB	Output is correct
10	Correct	11 ms	3468 KB	Output is correct
11	Correct	14 ms	3568 KB	Output is correct
12	Correct	12 ms	3332 KB	Output is correct
13	Correct	13 ms	3324 KB	Output is correct
14	Correct	13 ms	3328 KB	Output is correct
15	Correct	13 ms	3460 KB	Output is correct
16	Correct	13 ms	3364 KB	Output is correct
17	Correct	13 ms	3496 KB	Output is correct
18	Correct	13 ms	3364 KB	Output is correct
19	Correct	13 ms	3364 KB	Output is correct
20	Correct	11 ms	3988 KB	Output is correct
21	Correct	11 ms	3884 KB	Output is correct
22	Correct	13 ms	4012 KB	Output is correct
23	Correct	14 ms	4060 KB	Output is correct
24	Correct	15 ms	3908 KB	Output is correct
25	Correct	13 ms	4004 KB	Output is correct
26	Correct	13 ms	3996 KB	Output is correct
27	Correct	13 ms	3908 KB	Output is correct
28	Correct	13 ms	3972 KB	Output is correct
29	Correct	12 ms	3832 KB	Output is correct
30	Correct	13 ms	3864 KB	Output is correct

Subtask #5

17.0 / 17.0

#	결과	실행 시간	메모리	Grader output
1	Correct	19 ms	3780 KB	Output is correct
2	Correct	19 ms	4092 KB	Output is correct
3	Correct	20 ms	4088 KB	Output is correct
4	Correct	13 ms	3456 KB	Output is correct
5	Correct	13 ms	4428 KB	Output is correct
6	Correct	13 ms	3952 KB	Output is correct
7	Correct	14 ms	3884 KB	Output is correct
8	Correct	14 ms	3820 KB	Output is correct
9	Correct	14 ms	3844 KB	Output is correct
10	Correct	12 ms	3508 KB	Output is correct
11	Correct	12 ms	3476 KB	Output is correct
12	Correct	12 ms	3340 KB	Output is correct
13	Correct	12 ms	3340 KB	Output is correct
14	Correct	13 ms	3344 KB	Output is correct
15	Correct	13 ms	3372 KB	Output is correct
16	Correct	13 ms	3488 KB	Output is correct
17	Correct	13 ms	3364 KB	Output is correct
18	Correct	13 ms	3488 KB	Output is correct
19	Correct	13 ms	3372 KB	Output is correct
20	Correct	11 ms	3976 KB	Output is correct
21	Correct	11 ms	3972 KB	Output is correct
22	Correct	13 ms	3964 KB	Output is correct
23	Correct	13 ms	4008 KB	Output is correct
24	Correct	13 ms	4012 KB	Output is correct
25	Correct	13 ms	3992 KB	Output is correct
26	Correct	13 ms	4016 KB	Output is correct
27	Correct	14 ms	3984 KB	Output is correct
28	Correct	13 ms	3972 KB	Output is correct
29	Correct	11 ms	3780 KB	Output is correct
30	Correct	13 ms	3840 KB	Output is correct
31	Correct	2 ms	1676 KB	Output is correct
32	Correct	2 ms	1796 KB	Output is correct
33	Correct	2 ms	1800 KB	Output is correct
34	Correct	2 ms	1784 KB	Output is correct
35	Correct	2 ms	1512 KB	Output is correct
36	Correct	2 ms	1540 KB	Output is correct
37	Correct	2 ms	1552 KB	Output is correct
38	Correct	2 ms	1680 KB	Output is correct
39	Correct	2 ms	1676 KB	Output is correct
40	Correct	1 ms	1548 KB	Output is correct
41	Correct	2 ms	1524 KB	Output is correct
42	Correct	1 ms	1636 KB	Output is correct