oj.uz

Submission #421578

# Submission time Handle Problem Language Result Execution time Memory
421578 2021-06-09T09:23:19 Z Keshi Werewolf (IOI18_werewolf) C++17
15 / 100
 4000 ms 150008 KB 
//In the name of God
#include <bits/stdc++.h>
#include "werewolf.h"
#pragma GCC optimize("O2")
#pragma GCC optimize("unroll-loops")
using namespace std;

typedef int ll;
typedef pair<ll, ll> pll;

const ll maxn = 2e5 + 100;
const ll mod = 1e9 + 7;
const ll inf = 1e9;

#define fast_io ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define pb push_back
#define Mp make_pair
#define F first
#define S second
#define Sz(x) ll((x).size())
#define all(x) (x).begin(), (x).end()

int n, m, q;
int dsu[maxn];
vector<int> g[maxn], vec[maxn], h[maxn];
vector<pll> com[maxn];
map<ll, ll> mp[maxn];

void init(bool f = 1){
	for(ll i = 0; i < n; i++){
		dsu[i] = i;
		vec[i].reserve(10);
		vec[i].pb(i);
		if(f) mp[i][i] = n;
		if(f) com[i].pb(Mp(i, n));
	}
}
bool Union(ll v, ll u, ll i){
	v = dsu[v];
	u = dsu[u];
	if(v == u) return 0;
	if(Sz(vec[v]) < Sz(vec[u])) swap(v, u);
	for(ll x : vec[u]){
		vec[v].pb(x);
		dsu[x] = v;
		mp[x][v] = i;
		com[x].pb(Mp(v, i));
	}
	vec[u].clear();
	vec[u].shrink_to_fit();
	return 1;
}
bool merge(ll v, ll u){
	v = dsu[v];
	u = dsu[u];
	if(v == u) return 0;
	if(Sz(vec[v]) < Sz(vec[u])) swap(v, u);
	for(ll x : vec[u]){
		vec[v].pb(x);
		dsu[x] = v;
	}
	for(pll x : mp[u]){
		mp[v][x.F] = max(mp[v][x.F], x.S);
	}
	mp[u].clear();
	vec[u].clear();
	vec[u].shrink_to_fit();
	return 1;
}

vector<int> check_validity(int N, vector<int> X, vector<int> Y, vector<int> S, vector<int> E, vector<int> L, vector<int> R){
	m = Sz(X);
	q = Sz(S);
	n = N;
	init();
	for(ll i = 0; i < m; i++){
		g[X[i]].pb(Y[i]);
		g[Y[i]].pb(X[i]);
	}
	for(ll i = 0; i < q; i++){
		h[R[i]].pb(i);
	}
	for(ll i = n; i--;){
		for(ll j : g[i]){
			if(j >= i) Union(i, j, i);
		}
	}
	init(0);
	vector<int> ans(q);
	for(ll i = 0; i < n; i++){
		for(ll j : g[i]){
			if(i >= j) merge(i, j);
		}
		for(ll j : h[i]){
			ll mx = 0;
			ll e = dsu[E[j]];
			for(pll x : com[S[j]]){
				mx = max(mx, min(x.S, mp[e][x.F]));
			}
			if(mx >= L[j]) ans[j] = 1;
		}
	}
	return ans;
}

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 28508 KB Output is correct
2 Correct 18 ms 28488 KB Output is correct
3 Correct 16 ms 28508 KB Output is correct
4 Correct 16 ms 28492 KB Output is correct
5 Correct 16 ms 28492 KB Output is correct
6 Correct 20 ms 28500 KB Output is correct
7 Correct 16 ms 28416 KB Output is correct
8 Correct 19 ms 28492 KB Output is correct
9 Correct 16 ms 28408 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 28508 KB Output is correct
2 Correct 18 ms 28488 KB Output is correct
3 Correct 16 ms 28508 KB Output is correct
4 Correct 16 ms 28492 KB Output is correct
5 Correct 16 ms 28492 KB Output is correct
6 Correct 20 ms 28500 KB Output is correct
7 Correct 16 ms 28416 KB Output is correct
8 Correct 19 ms 28492 KB Output is correct
9 Correct 16 ms 28408 KB Output is correct
10 Correct 26 ms 29560 KB Output is correct
11 Correct 27 ms 29588 KB Output is correct
12 Correct 33 ms 29980 KB Output is correct
13 Correct 25 ms 29644 KB Output is correct
14 Correct 29 ms 29896 KB Output is correct
15 Correct 28 ms 29648 KB Output is correct

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Execution timed out 4062 ms 150008 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 51.0

# Verdict Execution time Memory Grader output
1 Correct 16 ms 28508 KB Output is correct
2 Correct 18 ms 28488 KB Output is correct
3 Correct 16 ms 28508 KB Output is correct
4 Correct 16 ms 28492 KB Output is correct
5 Correct 16 ms 28492 KB Output is correct
6 Correct 20 ms 28500 KB Output is correct
7 Correct 16 ms 28416 KB Output is correct
8 Correct 19 ms 28492 KB Output is correct
9 Correct 16 ms 28408 KB Output is correct
10 Correct 26 ms 29560 KB Output is correct
11 Correct 27 ms 29588 KB Output is correct
12 Correct 33 ms 29980 KB Output is correct
13 Correct 25 ms 29644 KB Output is correct
14 Correct 29 ms 29896 KB Output is correct
15 Correct 28 ms 29648 KB Output is correct
16 Execution timed out 4062 ms 150008 KB Time limit exceeded
17 Halted 0 ms 0 KB -