Submission #1057460

#	Time	Username	Problem	Language	Result	Execution time	Memory
1057460		mariaclara	Dungeons Game (IOI21_dungeons)	C++17	36 / 100	7097 ms	139728 KiB

dungeons

#include "dungeons.h"
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<int,int> pii;
const int MAXN = 5e4+5;
#define all(x) x.begin(), x.end()
#define sz(x) (int)x.size()
#define mk make_pair
#define pb push_back
#define fr first
#define sc second

int N;
pair<int,ll> dp[7][25][MAXN];
vector<int> pos_s, S, P, W, L;

void init(int n, vector<int> s, vector<int> p, vector<int> w, vector<int> l) {
	set<int> aux;
	N = sz(s);

	for(int i = 0; i < N; i++) aux.insert(s[i]);
	for(auto it : aux) pos_s.pb(it);

	if(sz(pos_s) > 5) {
		S = s;
		P = p;
		W = w;
		L = l;
		return;
	}

	s.pb(0); p.pb(0); w.pb(N); l.pb(N);

	for(int i = 0; i <= N; i++) {
		int it = lower_bound(all(pos_s), s[i]) - pos_s.begin();

		for(int j = 0; j <= 6; j++) {
			if(it < j) dp[j][0][i] = {w[i], s[i]};
			else dp[j][0][i] = {l[i], p[i]};
		}
	}

	for(int t = 0; t <= 6; t++) {
		for(int bit = 1; bit < 25; bit++) {
			for(int i = 0; i <= N; i++) {
				dp[t][bit][i].fr = dp[t][bit-1][dp[t][bit-1][i].fr].fr;
				dp[t][bit][i].sc = dp[t][bit-1][i].sc + dp[t][bit-1][dp[t][bit-1][i].fr].sc;
			}
		}
	}
}

ll simulate(int x, int z) {
	int t = 0;
	ll ans = z;

	if(!S.empty()) {
		while(x != N) {
			if(ans >= S[x]) ans += S[x], x = W[x];
			else ans += P[x], x = L[x];
		}
		return ans;
	}

	while(t < sz(pos_s)) {
		// dp[t][][x]
		for(int bit = 24; bit >= 0; bit--) {
			if(ans + dp[t][bit][x].sc < pos_s[t]) 
				ans += dp[t][bit][x].sc, x = dp[t][bit][x].fr;
		}

		if(ans < pos_s[t]) ans += dp[t][0][x].sc, x = dp[t][0][x].fr;
		t++;
	}

	ans += dp[t][24][x].sc;
	return ans;
}

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