Submission #834241

#	Time	Username	Problem	Language	Result	Execution time	Memory
834241		Abrar_Al_Samit	Dungeons Game (IOI21_dungeons)	C++17	0 / 100	7069 ms	24656 KiB

dungeons

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

const int nax = 4e5 + 3;
int n;
vector<int>s, p, w, l;
int nxtBig[nax];
long long sum_toNext[nax], sum_toN[nax];
int st[nax], at = 0;

void go(int i, long long sum = 0) {
	if(i==n) {
		while(at) {
			sum_toNext[st[at]] += sum;
			nxtBig[st[at]] = n; --at;
		}
		return;
	}

	while(at && s[st[at]]<s[i]) {
		sum_toNext[st[at]] += sum;
		nxtBig[st[at]] = i;
		--at;
	}
	++at, st[at] = i;
	sum_toNext[i] = -sum;

	go(w[i], sum + s[i]);
}
long long go2(int i) {
	if(i==n) return 0LL;
	if(sum_toN[i]) return sum_toN[i];
	
	return sum_toN[i] = go2(w[i]) + s[i];
}
void init(int N, vector<int> S, vector<int> P, vector<int> W, vector<int> L) {
	n = N, s = S, p = P, w = W, l = L;

	for(int i=0; i<n; ++i) {
		nxtBig[i] = -1;
	}
	for(int i=0; i<n; ++i) if(nxtBig[i]==-1) {
		go(i);
	}
	for(int i=0; i<n; ++i) if(sum_toN[i]==0) {
		go2(i);
	}
}

const int anax = 1e7;
long long simulate(int x, int z) {

	long long cz = z;
	while(x < n && cz < anax) {
		if(cz >= s[x]) {
			cz += sum_toNext[x];
			x = nxtBig[x];
		} else {
			cz += s[x];
			x = l[x];			
		}
	}
	cz += sum_toN[x];
	return cz;
}

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