Submission #818593

#	Time	Username	Problem	Language	Result	Execution time	Memory
818593		alvingogo	Dungeons Game (IOI21_dungeons)	C++17	0 / 100	3593 ms	2097152 KiB

dungeons

#include "dungeons.h"
#include <bits/stdc++.h>
#define fs first
#define sc second
#define p_q priority_queue
using namespace std;

const int A=25;
typedef long long ll;
struct xe{
	int to;
	ll cost=0;
};
struct no{
	vector<xe> as;
	no(){
		as.resize(A);
	}
};
vector<vector<no> > f;
vector<int> s,p,w,l;
vector<ll> g;
int n;
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;
	g.resize(n);
	for(int i=0;i<n;i++){
		g[i]=s[i];
	}
	g.push_back(1e14);
	g.push_back(0);
	sort(g.begin(),g.end());
	g.erase(unique(g.begin(),g.end()),g.end());
	for(int e=0;e<g.size();e++){
		vector<no> v;
		v.resize(n+1);
		for(int i=0;i<n;i++){
			if(g[e]>=s[i]){
				v[i].as[0].to=w[i];
				v[i].as[0].cost=s[i];
			}
			else{
				v[i].as[0].to=l[i];
				v[i].as[0].cost=s[i];
			}
		}
		for(int i=1;i<A;i++){
			for(int j=0;j<n;j++){
				auto a=v[j].as[i-1],b=v[v[j].as[i-1].to].as[i-1];
				if(a.to==n){
					v[j].as[i]=a;
				}
				else{
					v[j].as[i].to=b.to;
					v[j].as[i].cost=a.cost+b.cost;
				}
			}
		}
		f.push_back(v);
	}
	g.push_back(2e14);
	return;
}

ll simulate(int x, int z) {
	for(int j=0;j+1<g.size();j++){
		for(int i=A-1;i>=0;i--){
			if(z+f[j][x].as[i].cost<=g[j+1]){
				z+=f[j][x].as[i].cost;
				x=f[j][x].as[i].to;
				if(x==n){
					return z;
				}
			}
		}
		if(z>=s[x]){
			z+=s[x];
			x=w[x];
		}
		else{
			z+=p[x];
			x=l[x];
		}
		if(x==n){
			return z;
		}
	}	
	return z;
}

Compilation message (stderr)

dungeons.cpp: In function 'void init(int, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>)':
dungeons.cpp:38:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   38 |  for(int e=0;e<g.size();e++){
      |              ~^~~~~~~~~
dungeons.cpp: In function 'll simulate(int, int)':
dungeons.cpp:70:17: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   70 |  for(int j=0;j+1<g.size();j++){
      |              ~~~^~~~~~~~~

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