Submission #775198

#	Time	Username	Problem	Language	Result	Execution time	Memory
775198		SanguineChameleon	Dungeons Game (IOI21_dungeons)	C++17	0 / 100	16 ms	34388 KiB

dungeons

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

const long long inf = 1e18L + 20;
const int maxN = 5e4 + 20;
const int maxT = 24;
const int maxK = 30;
pair<int, pair<long long, long long>> jump[maxT][maxN][maxK];
int S[maxN];
int P[maxN];
int W[maxN];
int L[maxN];
vector<int> times;
int N, T;

void init(int _N, vector<int> _S, vector<int> _P, vector<int> _W, vector<int> _L) {
	N = _N;
	for (int i = 0; i < N; i++) {
		S[i] = _S[i];
		P[i] = _P[i];
		W[i] = _W[i];
		L[i] = _L[i];
	}
	W[N] = N;
	for (int i = 0; i < 23; i++) {
		times.push_back(1 << i);
	}
	T = times.size();
	for (int t = 0; t <= T; t++) {
		for (int i = 0; i < N; i++) {
			if (t == T || S[i] < times[t]) {
				jump[t][i][0] = make_pair(W[i], make_pair(S[i], -inf));
			}
			else {
				jump[t][i][0] = make_pair(L[i], make_pair(P[i], -S[i]));
			}
		}
		jump[t][N][0] = make_pair(N, make_pair(0, -inf));
		for (int k = 1; k < maxK; k++) {
			jump[t][N][k] = make_pair(N, make_pair(0, -inf));
			for (int i = 0; i < N; i++) {
				int nxt = jump[t][i][k - 1].first;
				jump[t][i][k] = make_pair(jump[t][nxt][k - 1].first, make_pair(jump[t][i][k - 1].second.first + jump[t][nxt][k - 1].second.first, max(jump[t][i][k - 1].second.second, jump[t][i][k - 1].second.first + jump[t][nxt][k - 1].second.second)));
			}
		}
	}
	return;
}

long long simulate(int X, int _Z) {
	long long Z = _Z;
	while (X != N) {
		int t = upper_bound(times.begin(), times.end(), Z) - times.begin();
		for (int k = maxK - 1; k >= 0; k--) {
			if (Z + jump[t][X][k].second.second < 0) {
				Z += jump[t][X][k].second.first;
				X = jump[t][X][k].first;
			}
		}
/*		Z += S[X];
		X = W[X];*/
	}
	return Z;
}

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