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답안 #946993

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
946993 2024-03-15T09:44:44 Z mansur Amusement Park (JOI17_amusement_park) C++17
28 / 100
 23 ms 6100 KB 
#include "Joi.h"
#include<bits/stdc++.h>	

using namespace std;

#define all(a) a.begin(), a.end()                                                   
#define rall(a) a.rbegin(), a.rend()                 
#define sz(a) (int)a.size()
#define s second
#define f first
 
using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

const int NN = 1e4;

int d[2][NN];
vector<int> g[NN];

int get(int x, int k, int n) {
	for (int i = 0; i < n; i++) d[k][i] = -1;
	queue<int> q;
	q.push(x);
	int mx = x;
	d[k][x] = 0;
	while (sz(q)) {
		x = q.front();
		q.pop();
		for (int to: g[x]) {
			if (d[k][to] == -1) {
				d[k][to] = d[k][x] + 1;
				q.push(to);
			}
		}
	}
	for (int i = 0; i < n; i++) {
		if (d[k][i] > d[k][mx]) {
			mx = i;
		}
	}
	return mx;
}

int cur, was[NN], dpt[NN];
vector<pii> s[NN];

void dfs(int u) {
    was[u] = 1;
	for (int to: g[u]) {
		if (was[to]) continue;
		dfs(to);
		dpt[u] = max(dpt[u], dpt[to] + 1);
		s[u].push_back({dpt[to], to});
	}
	sort(rall(s[u]));
}

ll x;

void mrk(int u) {
	MessageBoard(u, (x >> cur & 1));
	cur++;
	for (auto to: s[u]) mrk(to.s);		
}

void Joi(int N, int M, int A[], int B[], long long X, int T) {	
	x = X;
	for (int i = 0; i < M; i++) {
		g[A[i]].push_back(B[i]);
		g[B[i]].push_back(A[i]);
	}
	int a = get(0, 0, N);
	int b = get(a, 1, N);
	if (d[1][b] < 59) {
		dfs(1);
		mrk(1);
		return;
	}
	for (int i = 0; i < N; i++) {
		d[1][i] %= 60;
		MessageBoard(i, (X >> d[1][i] & 1));
	}
}

#include "Ioi.h"
#include<bits/stdc++.h>	

using namespace std;

#define all(a) a.begin(), a.end()                                                   
#define rall(a) a.rbegin(), a.rend()                 
#define sz(a) (int)a.size()
#define s second
#define f first
 
using ll = long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;

const int Nn = 1e4;

int dd[2][Nn], nxt[Nn], prv[Nn];
vector<int> gg[Nn];

int gett(int x, int k, int n) {
	for (int i = 0; i < n; i++) dd[k][i] = -1;
	queue<int> q;
	q.push(x);
	int s = x;
	dd[k][x] = 0;
	while (sz(q)) {
		x = q.front();
		q.pop();
		for (int to: gg[x]) {
			if (dd[k][to] == -1) {
				dd[k][to] = dd[k][x] + 1;
				prv[to] = x;
				q.push(to);
			}
		}
	}
	int mx = s;
	for (int i = 0; i < n; i++) {
		if (dd[k][i] > dd[k][mx]) {
			mx = i;
		}
	}
	int v = mx;
	while (mx != s) {
		nxt[prv[mx]] = mx;
		mx = prv[mx];	
	}
	return v;
}

vector<pii> h[Nn];
int dt[Nn], wes[Nn];
ll vl[Nn], cr, cnt;
ll ans, pr[Nn];

void dffs(int u) {
    wes[u] = 1;
	for (int to: gg[u]) {
		if (wes[to]) continue;
		pr[to] = u;
		dffs(to);
		dt[u] = max(dt[u], dt[to] + 1);
		h[u].push_back({dt[to], to});
	}
	sort(rall(h[u]));
}

void mrkk(int u) {
	vl[u] = cr++;
	for (auto to: h[u]) mrkk(to.s);
	reverse(all(h[u]));	
}

int vv, used[60];

void git(int u) {
	if (vl[u] < 60 && !used[vl[u]]) {
		used[vl[u]] = 1;
		ans += (1ll << vl[u]) * vv;
		cnt++;
	}
	for (auto to: h[u]) {
		if (vl[to.s] < 60 && !used[vl[to.s]]) {
			vv = Move(to.s);
			git(to.s);
		}
	}
	if (cnt == 60) return;
	vv = Move(pr[u]);
	git(pr[u]);
}

long long Ioi(int N, int M, int A[], int B[], int p, int v, int T) {
	for (int i = 0; i < M; i++) {
		gg[A[i]].push_back(B[i]);
		gg[B[i]].push_back(A[i]);
	}
	int a = gett(0, 0, N);
	int b = gett(a, 1, N);
	if (dd[1][b] < 59) {
		dffs(1);
		mrkk(1);
		vv = v;
		git(p);
		return ans;		
	}
	for (int i = 1; i <= 60; i++) {
		ll b = (dd[1][p] % 60);
		if (v) ans += (1ll << b);
		bool ok = 0;
		for (int to: gg[p]) {
			if (dd[1][to] + 1 == dd[1][p]) {
				v = Move(to);
				p = to;
				ok = 1;
				break;
			}
		}  
		if (!ok) {
			ans = 0;                                                                                          			
			for (ll j = 0; j < 60; j++) {
				ans += (1ll << j) * v;
				v = Move(nxt[p]);
				p = nxt[p];
			}
			return ans;
		}
	}
	return ans;
}

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 1820 KB Output is correct
2 Correct 1 ms 2024 KB Output is correct
3 Correct 1 ms 1816 KB Output is correct
4 Correct 1 ms 1820 KB Output is correct
5 Correct 1 ms 1820 KB Output is correct
6 Correct 1 ms 1804 KB Output is correct
7 Correct 2 ms 1808 KB Output is correct
8 Correct 1 ms 1816 KB Output is correct
9 Correct 1 ms 1824 KB Output is correct
10 Correct 2 ms 1820 KB Output is correct
11 Correct 3 ms 2120 KB Output is correct
12 Correct 2 ms 1808 KB Output is correct
13 Correct 2 ms 1820 KB Output is correct
14 Correct 2 ms 1828 KB Output is correct
15 Correct 2 ms 1824 KB Output is correct
16 Correct 2 ms 2064 KB Output is correct
17 Correct 1 ms 1816 KB Output is correct
18 Correct 2 ms 1808 KB Output is correct

Subtask #2
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 19 ms 5996 KB Output is correct
2 Correct 20 ms 5984 KB Output is correct
3 Correct 23 ms 6100 KB Output is correct
4 Correct 13 ms 4060 KB Output is correct
5 Correct 11 ms 3288 KB Output is correct
6 Correct 10 ms 3292 KB Output is correct
7 Correct 11 ms 3292 KB Output is correct
8 Correct 11 ms 3296 KB Output is correct
9 Correct 10 ms 3288 KB Output is correct
10 Correct 11 ms 4072 KB Output is correct
11 Correct 11 ms 4056 KB Output is correct
12 Correct 11 ms 3784 KB Output is correct
13 Correct 11 ms 3784 KB Output is correct
14 Correct 11 ms 4056 KB Output is correct
15 Correct 11 ms 4060 KB Output is correct
16 Correct 12 ms 4060 KB Output is correct
17 Correct 13 ms 4052 KB Output is correct
18 Correct 12 ms 4052 KB Output is correct
19 Correct 12 ms 4064 KB Output is correct
20 Correct 8 ms 3284 KB Output is correct
21 Correct 8 ms 3296 KB Output is correct
22 Correct 10 ms 3288 KB Output is correct
23 Correct 9 ms 3296 KB Output is correct
24 Correct 10 ms 3288 KB Output is correct
25 Correct 11 ms 3540 KB Output is correct
26 Correct 10 ms 3460 KB Output is correct
27 Correct 11 ms 3288 KB Output is correct
28 Correct 13 ms 3284 KB Output is correct
29 Correct 9 ms 3280 KB Output is correct
30 Correct 9 ms 3280 KB Output is correct
31 Correct 1 ms 1816 KB Output is correct
32 Correct 1 ms 1820 KB Output is correct
33 Correct 2 ms 1816 KB Output is correct
34 Correct 1 ms 1804 KB Output is correct
35 Correct 2 ms 1820 KB Output is correct
36 Correct 1 ms 1804 KB Output is correct
37 Correct 2 ms 1820 KB Output is correct
38 Correct 2 ms 1804 KB Output is correct
39 Correct 1 ms 1820 KB Output is correct
40 Correct 0 ms 1804 KB Output is correct
41 Correct 2 ms 1808 KB Output is correct
42 Correct 1 ms 1820 KB Output is correct

Subtask #3
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 1816 KB Output is correct
2 Correct 2 ms 1808 KB Output is correct
3 Correct 1 ms 2252 KB Output is correct
4 Correct 2 ms 1848 KB Output is correct
5 Correct 2 ms 1844 KB Output is correct
6 Correct 2 ms 1848 KB Output is correct
7 Correct 2 ms 1848 KB Output is correct
8 Correct 2 ms 1840 KB Output is correct
9 Correct 7 ms 3288 KB Output is correct
10 Correct 8 ms 3292 KB Output is correct
11 Correct 8 ms 3284 KB Output is correct
12 Correct 1 ms 2312 KB Output is correct
13 Correct 1 ms 1800 KB Output is correct
14 Correct 2 ms 1816 KB Output is correct
15 Correct 1 ms 1812 KB Output is correct

Subtask #4
0.0 / 55.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 20 ms 6028 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 17.0

# 결과 실행 시간 메모리 Grader output
1 Incorrect 23 ms 5976 KB Output isn't correct
2 Halted 0 ms 0 KB -