oj.uz

Submission #573954

# Submission time Handle Problem Language Result Execution time Memory
573954 2022-06-07T13:28:20 Z PedroBigMan Sky Walking (IOI19_walk) C++14
24 / 100
 4000 ms 705312 KB 
/*
Author of all code: Pedro BIGMAN Dias
Last edit: 15/02/2021
*/
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
#pragma GCC optimize("Ofast")
#include <iostream>
#include <vector>
#include <cmath>
#include <algorithm>
#include <string>
#include <map>
#include <unordered_map>
#include <set>
#include <unordered_set>
#include <queue>
#include <deque>
#include <list>
#include <iomanip>
#include <stdlib.h>
#include <time.h>
#include <cstring>
#include "walk.h"
using namespace std;
typedef long long int ll;
typedef unsigned long long int ull;
typedef long double ld;
#define REP(i,a,b) for(ll i=(ll) a; i<(ll) b; i++)
#define pb push_back
#define mp make_pair
#define pl pair<ll,ll>
#define ff first
#define ss second
#define whole(x) x.begin(),x.end()
#define DEBUG(i) cout<<"Pedro Is The Master "<<i<<endl
#define INF 10000000000000000LL
#define EPS ((ld)0.00000000001)
#define pi ((ld)3.141592653589793)
#define VV(vvvv,NNNN,xxxx); REP(iiiii,0,NNNN) {vvvv.pb(xxxx);}
ll mod=1000000007LL;

template<class A=ll> 
void Out(vector<A> a) {REP(i,0,a.size()) {cout<<a[i]<<" ";} cout<<endl;}

template<class A=ll>
void In(vector<A> &a, ll N) {A cur; REP(i,0,N) {cin>>cur; a.pb(cur);}} 

class WG //everything works for weighted directed graphs except dynamic graph
{
    public:
    ll N; vector<vector<pl> > adj;
    vector<bool> pr; 
    
    WG(vector<vector<pl> > ad)
    {
        adj=ad; N=adj.size();
        REP(i,0,N) {pr.pb(false);}
    }
    
    vector<ll> Dijkstra(ll s)
    {
        vector<ll> d; REP(i,0,N) {d.pb(INF);}
        d[s]=0;
        priority_queue<pl> q;
        q.push(mp(0,s));
        ll cur;
        while(!q.empty())
        {
            cur=q.top().ss; q.pop();
            if(pr[cur]) {continue;}
            pr[cur]=true; 
            REP(i,0,adj[cur].size())
            {
                if(d[adj[cur][i].ff]>d[cur]+adj[cur][i].ss)
                {
                    d[adj[cur][i].ff]=d[cur]+adj[cur][i].ss;
                    q.push(mp(-d[adj[cur][i].ff],adj[cur][i].ff));
                }
            }
        }
        return d;
	}
};

ll min_distance(vector<int> x, vector<int> h, vector<int> l, vector<int> r, vector<int> y, int s, int g) 
{
	ll N = x.size(); ll M = l.size();
	vector<vector<ll> > be,en; VV(be,N,{}); VV(en,N,{});
	REP(i,0,M) {be[l[i]].pb(i); en[r[i]].pb(i);}
	multiset<ll> active; multiset<ll>::iterator it; active.insert(0);
	vector<pl> p; 
	vector<vector<ll> > inter; 
	vector<ll> fir;
	REP(i,0,N)
	{
		fir.pb(p.size());
		REP(j,0,be[i].size()) 
		{
			active.insert(y[be[i][j]]);
		}
		it=active.begin(); 
		while(it!=active.end() && *it <= h[i])
		{
			p.pb({x[i],*it});
			it++;
		}
		REP(j,0,en[i].size()) 
		{
			active.erase(active.find(y[en[i][j]]));
		}
	}
	ll P = p.size(); vector<vector<pl> > adj; VV(adj,P,{}); ll we;
	REP(i,0,P-1)
	{
		if(p[i+1].ff==p[i].ff) {we=p[i+1].ss-p[i].ss; adj[i].pb({i+1,we}); adj[i+1].pb({i,we});}
	}
	map<ll,vector<ll> > m;
	REP(i,0,P) 
	{
		if(m.find(p[i].ss)==m.end()) {m[p[i].ss]={};}
		m[p[i].ss].pb(i);
	}
	map<ll,vector<ll> >::iterator it2; ll ind1,ind2;
	REP(i,0,M)
	{
		ll j = (ll) (lower_bound(whole(m[y[i]]),fir[l[i]]) - m[y[i]].begin());
		it2=m.find(y[i]);
		while(1>0)
		{
			ind1=it2->ss[j]; ind2=it2->ss[j+1]; we=p[ind2].ff-p[ind1].ff;
			adj[ind1].pb({ind2,we}); adj[ind2].pb({ind1,we});
			if(p[ind2].ff==x[r[i]]) {break;}
			j++;
		}
	}
	
	ll A = (ll) (find(whole(p),(pl){x[s],0}) - p.begin());
	ll B = (ll) (find(whole(p),(pl){x[g],0}) - p.begin());
	//REP(i,0,P) {cout<<i<<" "<<p[i].ff<<" "<<p[i].ss<<endl;}
	//REP(i,0,P) {cout<<i<<endl;REP(j,0,adj[i].size()) {cout<<adj[i][j].ff<<" "<<adj[i][j].ss<<endl;}} 
	WG G(adj);
	vector<ll> d = G.Dijkstra(A); 
	if(d[B]>=INF) {return -1;}
	//REP(i,0,P) {cout<<p[i].ff<<" "<<p[i].ss<<" "<<d[i]<<endl;}
	return d[B];
}

Compilation message

walk.cpp:5: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    5 | #pragma GCC optimization ("O3")
      | 
walk.cpp:6: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    6 | #pragma GCC optimization ("unroll-loops")
      |

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 428 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 300 KB Output is correct
10 Correct 1 ms 560 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 552 KB Output is correct

Subtask #2
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1185 ms 250832 KB Output is correct
4 Correct 1224 ms 272260 KB Output is correct
5 Correct 867 ms 235084 KB Output is correct
6 Correct 844 ms 208048 KB Output is correct
7 Correct 852 ms 235212 KB Output is correct
8 Correct 1498 ms 320708 KB Output is correct
9 Correct 1000 ms 232700 KB Output is correct
10 Correct 1672 ms 375028 KB Output is correct
11 Correct 721 ms 137684 KB Output is correct
12 Correct 530 ms 101844 KB Output is correct
13 Correct 1386 ms 330532 KB Output is correct
14 Correct 490 ms 95104 KB Output is correct
15 Correct 448 ms 92216 KB Output is correct
16 Correct 385 ms 93256 KB Output is correct
17 Correct 371 ms 90640 KB Output is correct
18 Correct 477 ms 94620 KB Output is correct
19 Correct 12 ms 5012 KB Output is correct
20 Correct 135 ms 47484 KB Output is correct
21 Correct 325 ms 84960 KB Output is correct
22 Correct 305 ms 91868 KB Output is correct
23 Correct 637 ms 112108 KB Output is correct
24 Correct 341 ms 91604 KB Output is correct
25 Correct 335 ms 90712 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 123 ms 42384 KB Output is correct
2 Execution timed out 4088 ms 705312 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 123 ms 42384 KB Output is correct
2 Execution timed out 4088 ms 705312 KB Time limit exceeded
3 Halted 0 ms 0 KB -

Subtask #5
0 / 43.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 468 KB Output is correct
7 Correct 1 ms 428 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 300 KB Output is correct
10 Correct 1 ms 560 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 212 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 1 ms 552 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1185 ms 250832 KB Output is correct
21 Correct 1224 ms 272260 KB Output is correct
22 Correct 867 ms 235084 KB Output is correct
23 Correct 844 ms 208048 KB Output is correct
24 Correct 852 ms 235212 KB Output is correct
25 Correct 1498 ms 320708 KB Output is correct
26 Correct 1000 ms 232700 KB Output is correct
27 Correct 1672 ms 375028 KB Output is correct
28 Correct 721 ms 137684 KB Output is correct
29 Correct 530 ms 101844 KB Output is correct
30 Correct 1386 ms 330532 KB Output is correct
31 Correct 490 ms 95104 KB Output is correct
32 Correct 448 ms 92216 KB Output is correct
33 Correct 385 ms 93256 KB Output is correct
34 Correct 371 ms 90640 KB Output is correct
35 Correct 477 ms 94620 KB Output is correct
36 Correct 12 ms 5012 KB Output is correct
37 Correct 135 ms 47484 KB Output is correct
38 Correct 325 ms 84960 KB Output is correct
39 Correct 305 ms 91868 KB Output is correct
40 Correct 637 ms 112108 KB Output is correct
41 Correct 341 ms 91604 KB Output is correct
42 Correct 335 ms 90712 KB Output is correct
43 Correct 123 ms 42384 KB Output is correct
44 Execution timed out 4088 ms 705312 KB Time limit exceeded
45 Halted 0 ms 0 KB -