oj.uz

Submission #237300

# Submission time Handle Problem Language Result Execution time Memory
237300 2020-06-05T18:37:11 Z limabeans Amusement Park (JOI17_amusement_park) C++17
18 / 100
 45 ms 6188 KB 
#include "Joi.h"
#include <bits/stdc++.h>
using namespace std;

template<typename T>
void out(T x) { cout << x << endl; exit(0); }
#define watch(x) cout << (#x) << " is " << (x) << endl




typedef long long ll;
const int maxn = 10005;


static vector<int> g[maxn];
static vector<int> path;
static bool viz[maxn];

// void MessageBoard(int attr, int msg) {
// }

static void dfs(int at) {
    path.push_back(at);
    viz[at]=true;
    for (int to: g[at]) {
	if (viz[to]) continue;
	dfs(to);
	path.push_back(at);
    }
}


static bool check3(int n, int m, int a[], int b[]) {
    if (m != n-1) return false;
    for (int i=0; i<m; i++) {
	if (a[i]==i && b[i]==i+1) continue;
	return false;
    }
    return true;
}

void Joi(int n, int m, int a[], int b[], long long x, int t) {
    for (int i=0; i<=n; i++) {
	g[i].clear();
    }
    path.clear();
    memset(viz,false,sizeof(viz));
    
    for (int i=0; i<m; i++) {
	g[a[i]].push_back(b[i]);
	g[b[i]].push_back(a[i]);
    }
    for (int i=0; i<n; i++) {
	sort(g[i].begin(), g[i].end());
    }


    if (check3(n, m, a, b)) {
	for (int i=0; i<n; i++) {
	    ll j=i%60;
	    MessageBoard(i, x>>j&1);
	}
	return;
    }
    
    dfs(0);
    memset(viz,false,sizeof(viz));
    ll j=0;
    for (int at: path) {
	if (viz[at]) continue;
	viz[at]=true;
	MessageBoard(at, x>>j&1);
	j++;
    }
}

#include "Ioi.h"
#include <bits/stdc++.h>
using namespace std;

template<typename T>
void out(T x) { cout << x << endl; exit(0); }
#define watch(x) cout << (#x) << " is " << (x) << endl




typedef long long ll;
const ll mod = 1e9+7;
const int maxn = 10005;
const int inf = 1e9;

static set<int> g[maxn];
static vector<int> path;
static bool viz[maxn];
int nodes;


// int Move(int dest) {
//     cout<<"Move: "<<dest<<endl;
//     return 1;
// }

static void dfs(int at) {
    path.push_back(at);
    viz[at]=true;
    for (int to: g[at]) {
	if (viz[to]) continue;
	dfs(to);
	path.push_back(at);
    }
}


vector<int> dij(int src) {
    int n = nodes;
    vector<int> dist(n, inf);
    vector<int> par(n, -1);
    dist[src] = 0;

    queue<int> qq;
    qq.push(src);
    while (qq.size()) {
	int at = qq.front();
	qq.pop();
	for (int to: g[at]) {
	    if (dist[to]>1+dist[at]) {
		dist[to]=1+dist[at];
		par[to]=at;
		qq.push(to);
	    }
	}
    }

    vector<int> res;
    int at = 0;
    while (at != src) {
	res.push_back(at);
	at=par[at];
    }
    reverse(res.begin(), res.end());
    return res;
}


static bool check3(int n, int m, int a[], int b[]) {
    if (m != n-1) return false;
    for (int i=0; i<m; i++) {
	if (a[i]==i && b[i]==i+1) continue;
	return false;
    }
    return true;
}


long long Ioi(int n, int m, int a[], int b[], int p, int v, int t) {
    nodes = n;
    for (int i=0; i<=n; i++) {
	g[i].clear();
    }
    path.clear();
    memset(viz,false,sizeof(viz));
    
    for (int i=0; i<m; i++) {
	g[a[i]].insert(b[i]);
	g[b[i]].insert(a[i]);
    }


    if (check3(n, m, a, b)) {
	ll res=0;
	int at=p;
	while (at%60 != 0) {
	    assert(at-1>=0);
	    v=Move(at-1);
	    at--;
	}
	res=v;
	for (ll j=1; j<=min(n-1,59); j++) {
	    ll val = Move(at+1);
	    assert(at+1<n);
	    res=res|(val<<j);
	    at++;
	}

	return res;
    }

    int cur=p;
    vector<int> pathto0 = dij(cur);
    for (int x: pathto0) {
	assert(g[cur].count(x));
	assert(x!=-1);
	Move(x);
	cur=x;
    }

    assert(cur==0);
    int to=*g[cur].begin();
    Move(to);
    cur=to;

    dfs(0);
    memset(viz,false,sizeof(viz));

    // for (int x: path) {
    // 	cout<<x<<" ";
    // }
    // cout<<endl;
    
    ll j=0;
    ll ans = 0;
    for (int nxt: path) {
	assert(g[cur].count(nxt));
	ll val = Move(nxt);
	cur=nxt;
	if (viz[nxt]) {
	    continue;
	}
	viz[nxt]=true;
	if (j>=60) {
	    break;
	}

	ans = ans | (val<<j);
	j++;
    }
    
    return ans;
}



// int main() {
//     //long long Ioi(int n, int m, int a[], int b[], int p, int v, int t) {
//     int a[] = {0,1,2,2};
//     int b[] = {1,2,0,3};
//     ll res  = Ioi(4,4,a,b,3,0,0);
//     watch(res);
//     return 0;
// }

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 1792 KB Output is correct
2 Correct 10 ms 1796 KB Output is correct
3 Correct 10 ms 1656 KB Output is correct
4 Correct 10 ms 1636 KB Output is correct
5 Correct 10 ms 1668 KB Output is correct
6 Correct 11 ms 1540 KB Output is correct
7 Correct 10 ms 1772 KB Output is correct
8 Correct 10 ms 1548 KB Output is correct
9 Correct 10 ms 1776 KB Output is correct
10 Correct 10 ms 1792 KB Output is correct
11 Correct 16 ms 2104 KB Output is correct
12 Correct 9 ms 1540 KB Output is correct
13 Correct 10 ms 1780 KB Output is correct
14 Correct 10 ms 1752 KB Output is correct
15 Correct 10 ms 1776 KB Output is correct
16 Correct 10 ms 1768 KB Output is correct
17 Correct 10 ms 1772 KB Output is correct
18 Correct 11 ms 1776 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 6176 KB Output is correct
2 Correct 43 ms 6132 KB Output is correct
3 Correct 45 ms 6012 KB Output is correct
4 Correct 26 ms 4028 KB Output is correct
5 Correct 28 ms 4448 KB Output is correct
6 Correct 31 ms 4336 KB Output is correct
7 Correct 28 ms 4376 KB Output is correct
8 Correct 27 ms 4188 KB Output is correct
9 Correct 27 ms 4332 KB Output is correct
10 Correct 27 ms 4096 KB Output is correct
11 Correct 27 ms 4116 KB Output is correct
12 Correct 25 ms 3812 KB Output is correct
13 Correct 27 ms 4076 KB Output is correct
14 Correct 26 ms 3920 KB Output is correct
15 Correct 27 ms 4044 KB Output is correct
16 Correct 26 ms 4136 KB Output is correct
17 Correct 26 ms 4152 KB Output is correct
18 Correct 28 ms 4044 KB Output is correct
19 Correct 26 ms 4144 KB Output is correct
20 Correct 23 ms 4320 KB Output is correct
21 Correct 23 ms 4316 KB Output is correct
22 Correct 27 ms 4324 KB Output is correct
23 Correct 27 ms 4300 KB Output is correct
24 Correct 26 ms 4300 KB Output is correct
25 Correct 28 ms 4212 KB Output is correct
26 Correct 26 ms 4352 KB Output is correct
27 Correct 27 ms 4476 KB Output is correct
28 Correct 26 ms 4344 KB Output is correct
29 Correct 25 ms 4044 KB Output is correct
30 Correct 26 ms 4248 KB Output is correct
31 Correct 10 ms 1764 KB Output is correct
32 Correct 10 ms 1668 KB Output is correct
33 Correct 10 ms 1776 KB Output is correct
34 Correct 10 ms 1792 KB Output is correct
35 Correct 10 ms 1800 KB Output is correct
36 Correct 10 ms 1828 KB Output is correct
37 Correct 10 ms 1668 KB Output is correct
38 Correct 10 ms 1548 KB Output is correct
39 Correct 10 ms 1664 KB Output is correct
40 Correct 10 ms 1548 KB Output is correct
41 Correct 10 ms 1796 KB Output is correct
42 Correct 10 ms 1920 KB Output is correct

Subtask #3
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 1644 KB Output is correct
2 Correct 10 ms 1796 KB Output is correct
3 Incorrect 10 ms 1668 KB Wrong Answer [6]
4 Halted 0 ms 0 KB -

Subtask #4
0.0 / 55.0

# Verdict Execution time Memory Grader output
1 Correct 43 ms 6172 KB Output is correct
2 Correct 41 ms 6188 KB Output is correct
3 Correct 42 ms 6168 KB Output is correct
4 Partially correct 27 ms 4152 KB Partially correct
5 Incorrect 28 ms 4812 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #5
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 6116 KB Output is correct
2 Correct 41 ms 6176 KB Output is correct
3 Correct 43 ms 6172 KB Output is correct
4 Incorrect 26 ms 4052 KB Output isn't correct
5 Halted 0 ms 0 KB -