oj.uz

답안 #338777

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
338777 2020-12-23T21:36:17 Z ogibogi2004 Jakarta Skyscrapers (APIO15_skyscraper) C++14
57 / 100
 1000 ms 98960 KB 
#include<bits/stdc++.h>
using namespace std;
const int MAXN=3e4+2;
const int INF=2e9;
int n,m;
struct doge
{
	int p,pos;
	bool operator<(const doge& other)
	{
		if(pos!=other.pos)return pos<other.pos;
		return p<=other.p;
	}
}d[MAXN];
struct state
{
	int pos,p,d;
	bool operator<(state const& other)const
	{
		if(d!=other.d)return d>other.d;
		return make_pair(p,pos)<make_pair(other.p,other.pos);
	}
};
set<pair<int,int> >doges;
set<int>doges1[MAXN];
vector<pair<int,int> >states;
unordered_map<int,int>dist[MAXN];
int main()
{
	srand(654);
	int e=rand();
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	cin>>n>>m;
	for(int i=0;i<m;++i)
	{
		cin>>d[i].pos>>d[i].p;
		doges.insert({d[i].p,d[i].pos%d[i].p});
		doges1[d[i].pos].insert(d[i].p);
	}
	for(auto t:doges)
	{
		for(int i=t.second;i<n;i+=t.first)
		{
			states.push_back({i,t.first});
		}
	}
	//dist.reserve(states.size());
	for(auto s:states)
	{
		dist[s.first][(s.second^e)]=INF;
	}
	deque<state>pq;
	pq.push_back({d[0].pos,d[0].p,0});
	dist[d[0].pos][d[0].p^e]=0;
	while(!pq.empty())
	{
		state u=pq.front();pq.pop_front();
		//if(dist[u.pos][u.p^e]<u.d)continue;
		if(u.pos==d[1].pos&&u.p==d[1].p)break;
		//if(clock()>0.9*CLOCKS_PER_SEC)break;
		//cout<<u.pos<<" "<<u.p<<endl;
		if(doges1[u.pos].size()>0)
		{
			auto it=doges1[u.pos].lower_bound(u.p);
			if(it!=doges1[u.pos].end()&&(*it)!=u.p)
			{
				auto d1=(*it);
				if(dist[u.pos][d1^e]>u.d)
				{
					dist[u.pos][d1^e]=u.d;
					pq.push_front({u.pos,d1,u.d});
				}
			}
			if(it!=doges1[u.pos].begin())
			{
				--it;
				auto d1=(*it);
				if(dist[u.pos][d1^e]>u.d)
				{
					dist[u.pos][d1^e]=u.d;
					pq.push_front({u.pos,d1,u.d});
				}
				++it;
			}
			//cout<<"**\n";
			if(it!=doges1[u.pos].end())++it;
			if(it!=doges1[u.pos].end())
			{
				auto d1=(*it);
				if(dist[u.pos][d1^e]>u.d)
				{
					dist[u.pos][d1^e]=u.d;
					pq.push_front({u.pos,d1,u.d});
				}
			}
		}
		//cout<<"***\n";
		/*for(auto d1:doges1[u.pos])
		{
			if(dist[(u.pos*MAXN+d1)^e]>u.d)
			{
				dist[(u.pos*MAXN+d1)^e]=u.d;
				pq.push({u.pos,d1,u.d});
			}
		}*/
		state v=u;
		if(v.pos+v.p<n)
		{
			v.pos+=v.p;
			if(dist[v.pos][v.p^e]>u.d+1)
			{
				v.d=u.d+1;
				dist[v.pos][v.p^e]=v.d;
				pq.push_back(v);
			}
		}
		v=u;
		if(v.pos-v.p>=0)
		{
			v.pos-=v.p;
			if(dist[v.pos][v.p^e]>u.d+1)
			{
				v.d=u.d+1;
				dist[v.pos][v.p^e]=v.d;
				pq.push_back(v);
			}
		}
	}
	if(dist[d[1].pos][d[1].p^e]==INF)
	{
		cout<<-1<<"\n";
	}
	else cout<<dist[d[1].pos][d[1].p^e]<<"\n";
return 0;
}

Subtask #1
10.0 / 10.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 3436 KB Output is correct
2 Correct 2 ms 3436 KB Output is correct
3 Correct 2 ms 3436 KB Output is correct
4 Correct 2 ms 3436 KB Output is correct
5 Correct 2 ms 3436 KB Output is correct
6 Correct 2 ms 3436 KB Output is correct
7 Correct 3 ms 3328 KB Output is correct

Subtask #2
12.0 / 12.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 3436 KB Output is correct
2 Correct 2 ms 3436 KB Output is correct
3 Correct 2 ms 3436 KB Output is correct
4 Correct 2 ms 3436 KB Output is correct
5 Correct 2 ms 3436 KB Output is correct
6 Correct 3 ms 3436 KB Output is correct
7 Correct 2 ms 3436 KB Output is correct
8 Correct 3 ms 3436 KB Output is correct
9 Correct 3 ms 3436 KB Output is correct
10 Correct 3 ms 3564 KB Output is correct
11 Correct 4 ms 3820 KB Output is correct
12 Correct 3 ms 3436 KB Output is correct
13 Correct 3 ms 3436 KB Output is correct
14 Correct 5 ms 3948 KB Output is correct
15 Correct 5 ms 3948 KB Output is correct

Subtask #3
14.0 / 14.0

# 결과 실행 시간 메모리 Grader output
1 Correct 3 ms 3436 KB Output is correct
2 Correct 2 ms 3436 KB Output is correct
3 Correct 2 ms 3436 KB Output is correct
4 Correct 2 ms 3436 KB Output is correct
5 Correct 3 ms 3436 KB Output is correct
6 Correct 3 ms 3436 KB Output is correct
7 Correct 2 ms 3456 KB Output is correct
8 Correct 2 ms 3436 KB Output is correct
9 Correct 2 ms 3436 KB Output is correct
10 Correct 3 ms 3564 KB Output is correct
11 Correct 4 ms 3820 KB Output is correct
12 Correct 3 ms 3436 KB Output is correct
13 Correct 3 ms 3436 KB Output is correct
14 Correct 6 ms 3948 KB Output is correct
15 Correct 5 ms 3968 KB Output is correct
16 Correct 3 ms 3692 KB Output is correct
17 Correct 7 ms 4332 KB Output is correct
18 Correct 5 ms 3820 KB Output is correct
19 Correct 4 ms 3692 KB Output is correct
20 Correct 3 ms 3692 KB Output is correct
21 Correct 3 ms 3692 KB Output is correct
22 Correct 4 ms 3820 KB Output is correct
23 Correct 5 ms 3820 KB Output is correct
24 Correct 7 ms 4204 KB Output is correct
25 Correct 5 ms 3948 KB Output is correct
26 Correct 4 ms 3820 KB Output is correct
27 Correct 4 ms 3820 KB Output is correct
28 Correct 10 ms 4840 KB Output is correct
29 Correct 22 ms 6628 KB Output is correct
30 Correct 7 ms 4336 KB Output is correct
31 Correct 12 ms 5092 KB Output is correct
32 Correct 9 ms 4840 KB Output is correct
33 Correct 45 ms 9824 KB Output is correct
34 Correct 40 ms 9824 KB Output is correct

Subtask #4
21.0 / 21.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 3436 KB Output is correct
2 Correct 3 ms 3436 KB Output is correct
3 Correct 3 ms 3436 KB Output is correct
4 Correct 3 ms 3436 KB Output is correct
5 Correct 2 ms 3436 KB Output is correct
6 Correct 2 ms 3436 KB Output is correct
7 Correct 2 ms 3436 KB Output is correct
8 Correct 2 ms 3436 KB Output is correct
9 Correct 2 ms 3436 KB Output is correct
10 Correct 3 ms 3564 KB Output is correct
11 Correct 4 ms 3820 KB Output is correct
12 Correct 3 ms 3436 KB Output is correct
13 Correct 3 ms 3436 KB Output is correct
14 Correct 5 ms 3948 KB Output is correct
15 Correct 5 ms 3948 KB Output is correct
16 Correct 3 ms 3692 KB Output is correct
17 Correct 7 ms 4332 KB Output is correct
18 Correct 4 ms 3820 KB Output is correct
19 Correct 4 ms 3692 KB Output is correct
20 Correct 3 ms 3692 KB Output is correct
21 Correct 4 ms 3692 KB Output is correct
22 Correct 4 ms 3820 KB Output is correct
23 Correct 5 ms 3840 KB Output is correct
24 Correct 7 ms 4204 KB Output is correct
25 Correct 5 ms 3948 KB Output is correct
26 Correct 4 ms 3820 KB Output is correct
27 Correct 4 ms 3820 KB Output is correct
28 Correct 10 ms 4840 KB Output is correct
29 Correct 25 ms 6628 KB Output is correct
30 Correct 6 ms 4336 KB Output is correct
31 Correct 12 ms 5092 KB Output is correct
32 Correct 9 ms 4840 KB Output is correct
33 Correct 44 ms 9824 KB Output is correct
34 Correct 42 ms 9864 KB Output is correct
35 Correct 67 ms 11364 KB Output is correct
36 Correct 9 ms 5116 KB Output is correct
37 Correct 88 ms 14044 KB Output is correct
38 Correct 89 ms 14432 KB Output is correct
39 Correct 82 ms 14304 KB Output is correct
40 Correct 85 ms 14308 KB Output is correct
41 Correct 83 ms 14432 KB Output is correct
42 Correct 9 ms 4076 KB Output is correct
43 Correct 9 ms 3948 KB Output is correct
44 Correct 8 ms 3820 KB Output is correct
45 Correct 337 ms 32088 KB Output is correct
46 Correct 295 ms 32212 KB Output is correct

Subtask #5
0 / 43.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 3436 KB Output is correct
2 Correct 2 ms 3436 KB Output is correct
3 Correct 2 ms 3436 KB Output is correct
4 Correct 2 ms 3436 KB Output is correct
5 Correct 2 ms 3436 KB Output is correct
6 Correct 2 ms 3436 KB Output is correct
7 Correct 2 ms 3436 KB Output is correct
8 Correct 2 ms 3436 KB Output is correct
9 Correct 2 ms 3436 KB Output is correct
10 Correct 3 ms 3564 KB Output is correct
11 Correct 4 ms 3820 KB Output is correct
12 Correct 3 ms 3436 KB Output is correct
13 Correct 3 ms 3436 KB Output is correct
14 Correct 5 ms 3948 KB Output is correct
15 Correct 5 ms 3948 KB Output is correct
16 Correct 3 ms 3692 KB Output is correct
17 Correct 7 ms 4332 KB Output is correct
18 Correct 4 ms 3820 KB Output is correct
19 Correct 4 ms 3692 KB Output is correct
20 Correct 4 ms 3692 KB Output is correct
21 Correct 3 ms 3692 KB Output is correct
22 Correct 4 ms 3820 KB Output is correct
23 Correct 5 ms 3820 KB Output is correct
24 Correct 7 ms 4204 KB Output is correct
25 Correct 5 ms 3948 KB Output is correct
26 Correct 5 ms 3820 KB Output is correct
27 Correct 4 ms 3820 KB Output is correct
28 Correct 10 ms 4840 KB Output is correct
29 Correct 22 ms 6628 KB Output is correct
30 Correct 7 ms 4336 KB Output is correct
31 Correct 12 ms 5092 KB Output is correct
32 Correct 9 ms 4840 KB Output is correct
33 Correct 54 ms 9952 KB Output is correct
34 Correct 47 ms 9952 KB Output is correct
35 Correct 66 ms 11364 KB Output is correct
36 Correct 9 ms 4840 KB Output is correct
37 Correct 78 ms 14044 KB Output is correct
38 Correct 94 ms 14432 KB Output is correct
39 Correct 89 ms 14304 KB Output is correct
40 Correct 77 ms 14308 KB Output is correct
41 Correct 82 ms 14432 KB Output is correct
42 Correct 9 ms 4076 KB Output is correct
43 Correct 9 ms 3948 KB Output is correct
44 Correct 9 ms 3820 KB Output is correct
45 Correct 340 ms 32212 KB Output is correct
46 Correct 296 ms 32212 KB Output is correct
47 Correct 507 ms 44368 KB Output is correct
48 Correct 118 ms 18020 KB Output is correct
49 Correct 70 ms 13152 KB Output is correct
50 Correct 57 ms 12508 KB Output is correct
51 Correct 207 ms 23004 KB Output is correct
52 Correct 216 ms 24660 KB Output is correct
53 Correct 47 ms 11232 KB Output is correct
54 Correct 9 ms 5488 KB Output is correct
55 Correct 12 ms 6508 KB Output is correct
56 Correct 19 ms 7144 KB Output is correct
57 Correct 211 ms 26584 KB Output is correct
58 Correct 24 ms 7400 KB Output is correct
59 Correct 36 ms 8680 KB Output is correct
60 Correct 47 ms 10088 KB Output is correct
61 Correct 43 ms 9696 KB Output is correct
62 Correct 466 ms 31956 KB Output is correct
63 Execution timed out 1104 ms 98960 KB Time limit exceeded
64 Halted 0 ms 0 KB -