Submission #962817

#	Time	Username	Problem	Language	Result	Execution time	Memory
962817		0npata	Game (APIO22_game)	C++17	0 / 100	1 ms	1880 KiB

game

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

const int N = 30'005;
const int K = 1'005;

#define pb push_back
#define vec vector

vec<int> nk(N, -1);
vec<set<pair<int, int>>> g(N);
int k;
int n;

void init(int in, int ik) {
	n = in;
	k = ik;
}

int add_teleporter(int u, int v) {

	nk[v] = max(nk[v], nk[u]);

	g[u].insert({nk[v], v});;

	vec<int> stack{v};

	while(stack.size() > 0) {
		int cur = stack.back();
		stack.pop_back();

		vec<pair<int, int>> upd(0);
		for(auto nxt : g[k]) {
			int l = nxt.second;

			if(l<k) {
				// special node
				if(nk[cur] >= nk[l]) {
					return 1;
				}
			}

			if(nk[l] < nk[cur]) {
				stack.pb(l);
				nk[l] = nk[cur];
				upd.pb(nxt);
			}
			else if(nk[l] != nxt.first) {
				upd.pb(nxt);
			}
		}

		for(auto val : upd) {
			g[cur].erase(val);
			g[cur].insert({val.second, nk[val.second]});
		}
	}

	return 0;
}

• Subtask 1: 0 / 2
• Subtask 2: 0 / 10
• Subtask 3: 0 / 18
• Subtask 4: 0 / 30
• Subtask 5: 0 / 40