Submission #1220043

#	Time	Username	Problem	Language	Result	Execution time	Memory
1220043		brinton	Dungeons Game (IOI21_dungeons)	C++20	0 / 100	57 ms	27844 KiB

dungeons

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

vector<int> s,p,w,l;
int N;
vector<vector<pair<long long,int>>> lj;//lj[k][start] after 2^k play, {earn_hero,nxt};
vector<int> toN;// how many step to N if all wins;
void init(int i_n, vector<int> i_s, vector<int> i_p, vector<int> i_w, vector<int> i_l) {
	N = i_n;
	s = i_s, p = i_p, w = i_w, l = i_l;
	lj = vector(30,vector<pair<long long,int>>(N));// atmost lost 2^24 times;
	for(int i = 0;i < N;i++){
		lj[0][i].first = p[i];
		lj[0][i].second = l[i];
	}
	for(int k = 1;k < 30;k++){
		for(int i = 0;i < N;i++){
			auto [earn_hero,nxt] = lj[k-1][i];
			auto [earn_hero2,nxt2] = lj[k-1][nxt];
			lj[k][i] = {earn_hero+earn_hero2,nxt2};
		}
	}
	toN = vector<int>(N+1,0);
	for(int i = N-1;i >= 0;i--){
		toN[i] = toN[w[i]]+1;
	}
}

long long simulate(int x, int z) {
	long long hero = z;
	int cur = x;
	for(int k = 29;k >= 0;k--){
		auto [earn_hero,nxt] = lj[k][cur];
		if(hero + earn_hero < s[0]) {
			hero += earn_hero;
			cur = nxt;
		}
	}
	if(hero < s[0]){
		auto [earn_hero,nxt] = lj[0][cur];
		hero += earn_hero, cur = nxt;
	}
	hero += (long long)toN[cur]*s[0];
	return hero;
}

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