Submission #151529

#	Time	Username	Problem	Language	Result	Execution time	Memory
151529		Nucleist	Sky Walking (IOI19_walk)	C++14	0 / 100	3655 ms	1048580 KiB

walk

#include <bits/stdc++.h>
#include "walk.h" 
using namespace std; 
#define flash ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0)
#define debug(x) cerr << " - " << #x << ": " << x << endl;
#define debugs(x, y) cerr << " - " << #x << ": " << x << " " << #y << ": " << y << endl;
#define all(x) (x).begin(),(x).end()
#define sz(x) (ll)x.size()
#define ll long long
#define INF 1000000000000000000
#define pb push_back
#define ve vector<ll>
#define dos pair<ll,ll>
#define vedos vector<dos>
struct greateri
{
    template<class T>
    bool operator()(T const &a, T const &b) const { return a > b; }
};
ll so,go;
ll n,m;
vector<pair<ll,ll>>graph[100001];
map<pair<ll,ll>,ll>dp;
vector<int>xo;
map<ll,pair<ll,ll>>gg;
ll solve(ll node,ll index)
{
	ll ans=INF;
	if(node==(n-1))
	{
		//debug(index);
		return index;
	}
	if(dp.find({node,index})!=dp.end())return dp[{node,index}];
	for (ll i = 0; i < graph[node].size(); ++i)
	{
		ll next = graph[node][i].first;
		ll indexi = graph[node][i].second;
		ans=min(ans,solve(next,indexi)+abs(xo[node]-xo[next])+abs(index-indexi));
	}
	return dp[{node,index}]=ans;
}
ll min_distance(vector<int>x,vector<int>h,vector<int>l,vector<int>r,vector<int>y,int s,int g)
{
	for (ll i = 0; i < x.size(); ++i)
  {
  	gg[x[i]]={h[i],i};
  }
  for (ll i = 0; i < l.size(); ++i)
  {
  	auto k = gg.lower_bound(x[l[i]]);
  	auto hedi = (*k).first;
  	auto yo = (*k).second;
  	vector<pair<ll,ll>>connect;
  	while(hedi<=x[r[i]] && k!=gg.end())
  	{
  		if(yo.first>=y[i])
  		{
  			connect.pb({hedi,yo.second});
  		}
  		k++;
  		hedi = (*k).first;
  		yo = (*k).second;
  	}
  	for (ll j = 0; j < connect.size(); ++j)
  	{
  		for (ll d = j+1; d < connect.size(); ++d)
  		{
  			ll node = connect[j].second;
  			ll node1 = connect[d].second;
  			ll weight = abs(connect[d].first-connect[j].first);
  			graph[node].pb({node1,y[i]});
  		}
  	}
  }
  n=x.size();
  xo=x;
  ll ans=solve(0,0);
  if(ans==INF)return -1;
  return ans;
}
//code the AC sol !
// BS/queue/map

Compilation message (stderr)

walk.cpp: In function 'long long int solve(long long int, long long int)':
walk.cpp:35:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (ll i = 0; i < graph[node].size(); ++i)
                 ~~^~~~~~~~~~~~~~~~~~~~
walk.cpp: In function 'long long int min_distance(std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, std::vector<int>, int, int)':
walk.cpp:45:19: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for (ll i = 0; i < x.size(); ++i)
                 ~~^~~~~~~~~~
walk.cpp:49:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for (ll i = 0; i < l.size(); ++i)
                  ~~^~~~~~~~~~
walk.cpp:65:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
    for (ll j = 0; j < connect.size(); ++j)
                   ~~^~~~~~~~~~~~~~~~
walk.cpp:67:24: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
     for (ll d = j+1; d < connect.size(); ++d)
                      ~~^~~~~~~~~~~~~~~~
walk.cpp:71:9: warning: unused variable 'weight' [-Wunused-variable]
      ll weight = abs(connect[d].first-connect[j].first);
         ^~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 0 / 14
• Subtask 3: 0 / 15
• Subtask 4: 0 / 18
• Subtask 5: 0 / 43