Submission #443372

#	Time	Username	Problem	Language	Result	Execution time	Memory
443372		benedict0724	Dungeons Game (IOI21_dungeons)	C++17	13 / 100	188 ms	41772 KiB

dungeons

#include "dungeons.h"
#include <vector>
using namespace std;
typedef long long ll;
pair<int, ll> sp_lose[50002][25], sp_win[50002][25];
pair<int, ll> Plus(pair<int, ll> x, pair<int, ll> y)
{
    pair<int, ll> ans;
    ans.first = y.first;
    ans.second = x.second + y.second;
    return ans;
}

int S;

void init(int n, std::vector<int> s, std::vector<int> p, std::vector<int> w, std::vector<int> l) {
	for(int i=0;i<n;i++) sp_lose[i][0] = {l[i], p[i]};
	sp_lose[n][0] = {n, 0};

	S = s[0];

	for(int t=1;t<=24;t++)
    {
        for(int i=0;i<=n;i++)
        {
            int next = sp_lose[i][t-1].first;
            sp_lose[i][t] = Plus(sp_lose[i][t-1], sp_lose[next][t-1]);
        }
    }
    for(int i=0;i<n;i++) sp_win[i][0] = {w[i], s[i]};
    sp_win[n][0] = {n, 0};

    for(int t=1;t<=24;t++)
    {
        for(int i=0;i<=n;i++)
        {
            int next = sp_win[i][t-1].first;
            sp_win[i][t] = Plus(sp_win[i][t-1], sp_win[next][t-1]);
        }
    }

	return;
}

long long simulate(int x, int z) {
    if(z < S)
    {
        for(int t=24;t>=0;t--)
        {
            if(sp_lose[x][t].second + z < S)
            {
                z += sp_lose[x][t].second;
                x = sp_lose[x][t].first;
            }
        }
        
        z += sp_lose[x][0].second;
        x = sp_lose[x][0].first;
    }

	return z + sp_win[x][24].second;
}

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