Submission #794140

#	Time	Username	Problem	Language	Result	Execution time	Memory
794140		Johann	Dungeons Game (IOI21_dungeons)	C++17	0 / 100	74 ms	51644 KiB

dungeons

#include "dungeons.h"
#include "bits/stdc++.h"
using namespace std;

typedef long long ll;
typedef pair<ll, ll> pii;
typedef vector<ll> vi;
typedef vector<pii> vpii;
typedef vector<vpii> vvpii;
#define sz(x) (int)(x).size()

int N;
const ll INF = 1LL << 60;
vi S, P;
vector<int> W, L;
vi dpWin;
vvpii dpLos;

void init(int n, std::vector<int> s, std::vector<int> p, std::vector<int> w, std::vector<int> l)
{
	N = n;
	S.resize(N), P.resize(N);
	W = w, L = l;
	for (int i = 0; i < N; ++i)
		S[i] = s[i], P[i] = p[i];
	dpWin.assign(N + 1, INF);
	dpWin[N] = 0;
	for (int i = N - 1; i >= 0; --i)
		dpWin[i] = S[i] + dpWin[W[i]];

	dpLos.assign(N, vpii(ceil(log2(S[0]) + 1)));
	for (int i = 0; i < N; ++i)
		dpLos[i][0] = {L[i], P[i]};
	for (int j = 1; j < sz(dpLos.back()); ++j)
		for (int i = 0; i < N; ++i)
			dpLos[i][j] = {dpLos[dpLos[i][j - 1].first][j - 1].first, dpLos[dpLos[i][j - 1].first][j - 1].second + dpLos[i][j - 1].second};

	return;
}

long long simulate(int x, int z)
{
	ll ans = z;
	for (int j = sz(dpLos.back()) - 1; j >= 0; --j)
	{
		if (dpLos[x][j].second + ans < S[x])
		{
			ans += dpLos[x][j].second;
			x = dpLos[x][j].first;
		}
	}
	if (ans < S[x])
	{
		ans += dpLos[x][0].second;
		x = dpLos[x][0].first;
	}
	return ans + dpWin[x];
}

• Subtask 1: 0 / 11
• Subtask 2: 0 / 26
• Subtask 3: 0 / 13
• Subtask 4: 0 / 12
• Subtask 5: 0 / 27
• Subtask 6: 0 / 11