Submission #623941

#	Time	Username	Problem	Language	Result	Execution time	Memory
623941		Hanksburger	Dungeons Game (IOI21_dungeons)	C++17	25 / 100	198 ms	242380 KiB

dungeons

#include "dungeons.h"
#include <bits/stdc++.h>
using namespace std;
pair<int, long long> par[6][25][50005];
vector<int> vec;
int N;
void init(int n, vector<int> s, vector<int> p, vector<int> w, vector<int> l)
{
    N=n;
    vec.push_back(0);
    for (int i=0; i<n; i++)
        vec.push_back(s[i]);
    sort(vec.begin(), vec.end());
    vec.resize(unique(vec.begin(), vec.end())-vec.begin());
    for (int i=0; i<vec.size(); i++)
    {
        int num=vec[i];
        for (int j=0; j<n; j++)
        {
            if (num>=s[j])
                par[i][0][j]={w[j], s[j]};
            else
                par[i][0][j]={l[j], p[j]};
        }
        par[i][0][n]={n, 0};
        for (int j=1; j<=24; j++)
        {
            for (int k=0; k<=n; k++)
            {
                int u=par[i][j-1][k].first;
                par[i][j][k]={par[i][j-1][u].first, par[i][j-1][k].second+par[i][j-1][u].second};
            }
        }
    }
}
long long simulate(int x, int Z)
{
    long long z=Z;
    for (int i=0; i+2<=vec.size(); i++)
    {
        if (z>=vec[i+1])
            continue;
        for (int j=24; j>=0; j--)
        {
            if (z+par[i][j][x].second<vec[i+1])
            {
                z+=par[i][j][x].second;
                x=par[i][j][x].first;
            }
        }
        z+=par[i][0][x].second;
        x=par[i][0][x].first;
    }
    int ind=vec.size()-1;
    for (int i=24; i>=0; i--)
    {
        if (par[ind][i][x].first!=N)
        {
            z+=par[ind][i][x].second;
            x=par[ind][i][x].first;
        }
    }
    return z+par[ind][0][x].second;
}

Compilation message (stderr)

dungeons.cpp: In function 'void init(int, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
dungeons.cpp:15:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   15 |     for (int i=0; i<vec.size(); i++)
      |                   ~^~~~~~~~~~~
dungeons.cpp: In function 'long long int simulate(int, int)':
dungeons.cpp:39:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   39 |     for (int i=0; i+2<=vec.size(); i++)
      |                   ~~~^~~~~~~~~~~~

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