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Submission #283621

# Submission time Handle Problem Language Result Execution time Memory
283621 2020-08-26T03:29:00 Z arnold518 Iqea (innopolis2018_final_C) C++14
36 / 100
 1720 ms 262144 KB 
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 1e5;
const int INF = 5e7;

int N;
pii A[MAXN+10];
vector<int> X[MAXN+10], Y[MAXN+10];

struct Line
{
	int l, r, p;
	Line(int l, int r, int p) : l(l), r(r), p(p) {}
	bool operator < (const Line &q) const { return r<q.r; }
};
int Q;
vector<Line> LX[MAXN+10], LY[MAXN+10];
vector<int> adjX[MAXN+10], adjY[MAXN+10];

pii get(int y, int x)
{
	int nx=lower_bound(LX[y].begin(), LX[y].end(), Line(0, x, 0))->p;
	int ny=lower_bound(LY[x].begin(), LY[x].end(), Line(0, y, 0))->p;
	return {nx, ny};
}

pii P[MAXN+10];

struct Tree
{
	int M;
	vector<int> adj[MAXN+10];
	int sz[MAXN+10], del[MAXN+10], cpar[MAXN+10], cdist[MAXN+10][30], cdep[MAXN+10];

	Tree() : M(0) {}

	void getsz(int now, int bef)
	{
		sz[now]=1;
		for(int nxt : adj[now])
		{
			if(nxt==bef) continue;
			if(del[nxt]) continue;
			getsz(nxt, now);
			sz[now]+=sz[nxt];
		}
	}

	int getcen(int now, int bef, int S)
	{
		for(int nxt : adj[now])
		{
			if(nxt==bef) continue;
			if(del[nxt]) continue;
			if(sz[nxt]>S/2) return getcen(nxt, now, S);
		}
		return now;
	}

	void dfs(int now, int bef, int t, int dist)
	{
		cdist[now][t]=dist;
		for(int nxt : adj[now])
		{
			if(nxt==bef) continue;
			if(del[nxt]) continue;
			dfs(nxt, now, t, dist+1);
		}
	}

	void decomp(int now, int bef, int cendep)
	{
		getsz(now, now);
		now=getcen(now, now, sz[now]/2);
		cpar[now]=bef;
		cdep[now]=cendep;

		dfs(now, now, cendep, 0);
		del[now]=true;

		for(auto nxt : adj[now])
		{
			if(del[nxt]) continue;
			decomp(nxt, now, cendep+1);
		}
	}

	void init()
	{
		decomp(1, 0, 1);
	}

	vector<int> getpar(int now)
	{
		vector<int> ans;
		while(now)
		{
			ans.push_back(now);
			now=cpar[now];
		}
		return ans;
	}
}TX, TY;

vector<pii> TP1;
vector<int> TP2;

int main()
{
	scanf("%d", &N);
	for(int i=1; i<=N; i++)
	{
		int y, x;
		scanf("%d%d", &y, &x);
		A[i]={y, x};
		X[y].push_back(x);
		Y[x].push_back(y);
	}

	for(int i=1; i<=MAXN; i++)
	{
		if(X[i].empty()) continue;
		sort(X[i].begin(), X[i].end());

		int bef=X[i][0];
		for(int j=0; j+1<X[i].size(); j++)
		{
			if(X[i][j]+1!=X[i][j+1])
			{
				LX[i].push_back({bef, X[i][j], ++TX.M});
				//printf("LX %d %d %d %d\n", i, LX[i].back().l, LX[i].back().r, LX[i].back().p);
				bef=X[i][j+1];
			}
		}
		LX[i].push_back({bef, X[i].back(), ++TX.M});
		//printf("LX %d %d %d %d\n", i, LX[i].back().l, LX[i].back().r, LX[i].back().p);
	}

	for(int i=2; i<=MAXN; i++)
	{
		int p=0;
		for(auto it : LX[i])
		{
			for(; p<LX[i-1].size() && LX[i-1][p].r<it.l; p++);
			for(; p<LX[i-1].size() && LX[i-1][p].l<=it.r; p++)
			{
				int u=LX[i-1][p].p, v=it.p;
				TX.adj[u].push_back(v);
				TX.adj[v].push_back(u);
				//printf("adjX %d %d\n", u, v);
			}
			if(p) p--;
		}
	}

	for(int i=1; i<=MAXN; i++)
	{
		if(Y[i].empty()) continue;
		sort(Y[i].begin(), Y[i].end());

		int bef=Y[i][0];
		for(int j=0; j+1<Y[i].size(); j++)
		{
			if(Y[i][j]+1!=Y[i][j+1])
			{
				LY[i].push_back({bef, Y[i][j], ++TY.M});
				//printf("LY %d %d %d %d\n", i, LY[i].back().l, LY[i].back().r, LY[i].back().p);
				bef=Y[i][j+1];
			}
		}
		LY[i].push_back({bef, Y[i].back(), ++TY.M});
		//printf("LY %d %d %d %d\n", i, LY[i].back().l, LY[i].back().r, LY[i].back().p);
	}

	for(int i=2; i<=MAXN; i++)
	{
		int p=0;
		for(auto it : LY[i])
		{
			for(; p<LY[i-1].size() && LY[i-1][p].r<it.l; p++);
			for(; p<LY[i-1].size() && LY[i-1][p].l<=it.r; p++)
			{
				int u=LY[i-1][p].p, v=it.p;
				TY.adj[u].push_back(v);
				TY.adj[v].push_back(u);
				//printf("adjY %d %d\n", u, v);
			}
			if(p) p--;
		}
	}

	TX.init(); TY.init();

	for(int i=1; i<=N; i++)
	{
		P[i]=get(A[i].first, A[i].second);
		vector<int> V1=TX.getpar(P[i].first);
		vector<int> V2=TY.getpar(P[i].second);
		for(auto it : V1) for(auto jt : V2) TP1.push_back({it, jt});
	}
	sort(TP1.begin(), TP1.end());
	TP1.erase(unique(TP1.begin(), TP1.end()), TP1.end());
	TP2=vector<int>(TP1.size(), INF);

	scanf("%d", &Q);
	while(Q--)
	{
		int tt, y, x;
		scanf("%d%d%d", &tt, &y, &x);

		pii t=get(y, x);

		vector<int> V1=TX.getpar(t.first);
		vector<int> V2=TY.getpar(t.second);

		if(tt==1)
		{
			for(auto it : V1) for(auto jt : V2)
			{
				int pt=lower_bound(TP1.begin(), TP1.end(), pii(it, jt))-TP1.begin();
				TP2[pt]=min(TP2[pt], TX.cdist[t.first][TX.cdep[it]]+TY.cdist[t.second][TY.cdep[jt]]);
			}
		}
		else
		{
			int ans=INF;
			for(auto it : V1) for(auto jt : V2)
			{
				int pt=lower_bound(TP1.begin(), TP1.end(), pii(it, jt))-TP1.begin();
				ans=min(ans, TX.cdist[t.first][TX.cdep[it]]+TY.cdist[t.second][TY.cdep[jt]]+TP2[pt]);
			}
			if(ans==INF) ans=-1;
			printf("%d\n", ans);
		}
	}
}

Compilation message

C.cpp: In function 'int main()':
C.cpp:131:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  131 |   for(int j=0; j+1<X[i].size(); j++)
      |                ~~~^~~~~~~~~~~~
C.cpp:149:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Line>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  149 |    for(; p<LX[i-1].size() && LX[i-1][p].r<it.l; p++);
      |          ~^~~~~~~~~~~~~~~
C.cpp:150:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Line>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  150 |    for(; p<LX[i-1].size() && LX[i-1][p].l<=it.r; p++)
      |          ~^~~~~~~~~~~~~~~
C.cpp:167:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  167 |   for(int j=0; j+1<Y[i].size(); j++)
      |                ~~~^~~~~~~~~~~~
C.cpp:185:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Line>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  185 |    for(; p<LY[i-1].size() && LY[i-1][p].r<it.l; p++);
      |          ~^~~~~~~~~~~~~~~
C.cpp:186:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Line>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  186 |    for(; p<LY[i-1].size() && LY[i-1][p].l<=it.r; p++)
      |          ~^~~~~~~~~~~~~~~
C.cpp:115:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  115 |  scanf("%d", &N);
      |  ~~~~~^~~~~~~~~~
C.cpp:119:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  119 |   scanf("%d%d", &y, &x);
      |   ~~~~~^~~~~~~~~~~~~~~~
C.cpp:210:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  210 |  scanf("%d", &Q);
      |  ~~~~~^~~~~~~~~~
C.cpp:214:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  214 |   scanf("%d%d%d", &tt, &y, &x);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 19328 KB Output is correct
2 Correct 14 ms 19200 KB Output is correct
3 Correct 15 ms 19200 KB Output is correct
4 Correct 74 ms 23668 KB Output is correct
5 Correct 67 ms 23668 KB Output is correct
6 Correct 75 ms 23776 KB Output is correct
7 Correct 110 ms 24560 KB Output is correct
8 Correct 113 ms 24560 KB Output is correct
9 Correct 117 ms 24552 KB Output is correct
10 Correct 115 ms 24456 KB Output is correct
11 Correct 110 ms 24556 KB Output is correct
12 Correct 118 ms 24560 KB Output is correct
13 Correct 112 ms 24552 KB Output is correct
14 Correct 116 ms 24560 KB Output is correct
15 Correct 106 ms 24560 KB Output is correct
16 Correct 123 ms 28652 KB Output is correct
17 Correct 114 ms 24432 KB Output is correct
18 Correct 118 ms 24540 KB Output is correct
19 Correct 97 ms 24348 KB Output is correct
20 Correct 110 ms 24552 KB Output is correct
21 Correct 115 ms 24560 KB Output is correct
22 Correct 140 ms 28776 KB Output is correct
23 Correct 146 ms 28796 KB Output is correct
24 Correct 150 ms 28908 KB Output is correct
25 Correct 39 ms 22008 KB Output is correct
26 Correct 47 ms 22648 KB Output is correct
27 Correct 36 ms 22004 KB Output is correct
28 Correct 151 ms 29012 KB Output is correct
29 Correct 146 ms 29036 KB Output is correct
30 Correct 161 ms 29032 KB Output is correct
31 Correct 155 ms 29032 KB Output is correct
32 Correct 172 ms 29028 KB Output is correct
33 Correct 164 ms 28884 KB Output is correct
34 Correct 163 ms 28900 KB Output is correct
35 Correct 174 ms 29036 KB Output is correct
36 Correct 35 ms 22012 KB Output is correct
37 Correct 164 ms 29036 KB Output is correct
38 Correct 155 ms 29036 KB Output is correct
39 Correct 153 ms 29040 KB Output is correct
40 Correct 153 ms 29032 KB Output is correct
41 Correct 161 ms 28900 KB Output is correct
42 Correct 148 ms 28912 KB Output is correct
43 Correct 48 ms 21880 KB Output is correct
44 Correct 154 ms 28908 KB Output is correct
45 Correct 153 ms 28900 KB Output is correct
46 Correct 38 ms 21872 KB Output is correct
47 Correct 98 ms 24172 KB Output is correct
48 Correct 105 ms 24048 KB Output is correct
49 Correct 94 ms 23920 KB Output is correct
50 Correct 83 ms 23920 KB Output is correct
51 Correct 74 ms 23788 KB Output is correct
52 Correct 106 ms 24300 KB Output is correct
53 Correct 107 ms 24308 KB Output is correct
54 Correct 126 ms 28392 KB Output is correct
55 Correct 126 ms 28400 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 19328 KB Output is correct
2 Correct 14 ms 19200 KB Output is correct
3 Correct 15 ms 19200 KB Output is correct
4 Correct 74 ms 23668 KB Output is correct
5 Correct 67 ms 23668 KB Output is correct
6 Correct 75 ms 23776 KB Output is correct
7 Correct 110 ms 24560 KB Output is correct
8 Correct 113 ms 24560 KB Output is correct
9 Correct 117 ms 24552 KB Output is correct
10 Correct 115 ms 24456 KB Output is correct
11 Correct 110 ms 24556 KB Output is correct
12 Correct 118 ms 24560 KB Output is correct
13 Correct 112 ms 24552 KB Output is correct
14 Correct 116 ms 24560 KB Output is correct
15 Correct 106 ms 24560 KB Output is correct
16 Correct 123 ms 28652 KB Output is correct
17 Correct 114 ms 24432 KB Output is correct
18 Correct 118 ms 24540 KB Output is correct
19 Correct 97 ms 24348 KB Output is correct
20 Correct 110 ms 24552 KB Output is correct
21 Correct 115 ms 24560 KB Output is correct
22 Correct 140 ms 28776 KB Output is correct
23 Correct 146 ms 28796 KB Output is correct
24 Correct 150 ms 28908 KB Output is correct
25 Correct 39 ms 22008 KB Output is correct
26 Correct 47 ms 22648 KB Output is correct
27 Correct 36 ms 22004 KB Output is correct
28 Correct 151 ms 29012 KB Output is correct
29 Correct 146 ms 29036 KB Output is correct
30 Correct 161 ms 29032 KB Output is correct
31 Correct 155 ms 29032 KB Output is correct
32 Correct 172 ms 29028 KB Output is correct
33 Correct 164 ms 28884 KB Output is correct
34 Correct 163 ms 28900 KB Output is correct
35 Correct 174 ms 29036 KB Output is correct
36 Correct 35 ms 22012 KB Output is correct
37 Correct 164 ms 29036 KB Output is correct
38 Correct 155 ms 29036 KB Output is correct
39 Correct 153 ms 29040 KB Output is correct
40 Correct 153 ms 29032 KB Output is correct
41 Correct 161 ms 28900 KB Output is correct
42 Correct 148 ms 28912 KB Output is correct
43 Correct 48 ms 21880 KB Output is correct
44 Correct 154 ms 28908 KB Output is correct
45 Correct 153 ms 28900 KB Output is correct
46 Correct 38 ms 21872 KB Output is correct
47 Correct 98 ms 24172 KB Output is correct
48 Correct 105 ms 24048 KB Output is correct
49 Correct 94 ms 23920 KB Output is correct
50 Correct 83 ms 23920 KB Output is correct
51 Correct 74 ms 23788 KB Output is correct
52 Correct 106 ms 24300 KB Output is correct
53 Correct 107 ms 24308 KB Output is correct
54 Correct 126 ms 28392 KB Output is correct
55 Correct 126 ms 28400 KB Output is correct
56 Correct 674 ms 23796 KB Output is correct
57 Correct 639 ms 23796 KB Output is correct
58 Correct 665 ms 23788 KB Output is correct
59 Correct 1166 ms 24560 KB Output is correct
60 Correct 1114 ms 24616 KB Output is correct
61 Correct 1169 ms 24988 KB Output is correct
62 Correct 1119 ms 24552 KB Output is correct
63 Correct 1096 ms 24680 KB Output is correct
64 Correct 1166 ms 24844 KB Output is correct
65 Correct 1012 ms 24560 KB Output is correct
66 Correct 1166 ms 24944 KB Output is correct
67 Correct 1093 ms 24704 KB Output is correct
68 Correct 1160 ms 24688 KB Output is correct
69 Correct 1084 ms 24516 KB Output is correct
70 Correct 1163 ms 24688 KB Output is correct
71 Correct 1156 ms 24436 KB Output is correct
72 Correct 1173 ms 25124 KB Output is correct
73 Correct 1139 ms 24796 KB Output is correct
74 Correct 268 ms 22000 KB Output is correct
75 Correct 382 ms 22640 KB Output is correct
76 Correct 212 ms 22140 KB Output is correct
77 Correct 1623 ms 29156 KB Output is correct
78 Correct 1620 ms 29156 KB Output is correct
79 Correct 204 ms 22116 KB Output is correct
80 Correct 1720 ms 29160 KB Output is correct
81 Correct 1665 ms 29156 KB Output is correct
82 Correct 1514 ms 28908 KB Output is correct
83 Correct 1511 ms 29028 KB Output is correct
84 Correct 258 ms 22124 KB Output is correct
85 Correct 1530 ms 28900 KB Output is correct
86 Correct 1514 ms 28912 KB Output is correct
87 Correct 249 ms 21996 KB Output is correct
88 Correct 1101 ms 24300 KB Output is correct
89 Correct 1067 ms 24248 KB Output is correct
90 Correct 876 ms 24168 KB Output is correct
91 Correct 850 ms 23920 KB Output is correct
92 Correct 709 ms 23796 KB Output is correct
93 Correct 1084 ms 24604 KB Output is correct
94 Correct 1010 ms 24648 KB Output is correct
95 Correct 1270 ms 28528 KB Output is correct
96 Correct 1233 ms 28528 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 659 ms 68308 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Runtime error 505 ms 262144 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #5
0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 19328 KB Output is correct
2 Correct 14 ms 19200 KB Output is correct
3 Correct 15 ms 19200 KB Output is correct
4 Correct 74 ms 23668 KB Output is correct
5 Correct 67 ms 23668 KB Output is correct
6 Correct 75 ms 23776 KB Output is correct
7 Correct 110 ms 24560 KB Output is correct
8 Correct 113 ms 24560 KB Output is correct
9 Correct 117 ms 24552 KB Output is correct
10 Correct 115 ms 24456 KB Output is correct
11 Correct 110 ms 24556 KB Output is correct
12 Correct 118 ms 24560 KB Output is correct
13 Correct 112 ms 24552 KB Output is correct
14 Correct 116 ms 24560 KB Output is correct
15 Correct 106 ms 24560 KB Output is correct
16 Correct 123 ms 28652 KB Output is correct
17 Correct 114 ms 24432 KB Output is correct
18 Correct 118 ms 24540 KB Output is correct
19 Correct 97 ms 24348 KB Output is correct
20 Correct 110 ms 24552 KB Output is correct
21 Correct 115 ms 24560 KB Output is correct
22 Correct 140 ms 28776 KB Output is correct
23 Correct 146 ms 28796 KB Output is correct
24 Correct 150 ms 28908 KB Output is correct
25 Correct 39 ms 22008 KB Output is correct
26 Correct 47 ms 22648 KB Output is correct
27 Correct 36 ms 22004 KB Output is correct
28 Correct 151 ms 29012 KB Output is correct
29 Correct 146 ms 29036 KB Output is correct
30 Correct 161 ms 29032 KB Output is correct
31 Correct 155 ms 29032 KB Output is correct
32 Correct 172 ms 29028 KB Output is correct
33 Correct 164 ms 28884 KB Output is correct
34 Correct 163 ms 28900 KB Output is correct
35 Correct 174 ms 29036 KB Output is correct
36 Correct 35 ms 22012 KB Output is correct
37 Correct 164 ms 29036 KB Output is correct
38 Correct 155 ms 29036 KB Output is correct
39 Correct 153 ms 29040 KB Output is correct
40 Correct 153 ms 29032 KB Output is correct
41 Correct 161 ms 28900 KB Output is correct
42 Correct 148 ms 28912 KB Output is correct
43 Correct 48 ms 21880 KB Output is correct
44 Correct 154 ms 28908 KB Output is correct
45 Correct 153 ms 28900 KB Output is correct
46 Correct 38 ms 21872 KB Output is correct
47 Correct 98 ms 24172 KB Output is correct
48 Correct 105 ms 24048 KB Output is correct
49 Correct 94 ms 23920 KB Output is correct
50 Correct 83 ms 23920 KB Output is correct
51 Correct 74 ms 23788 KB Output is correct
52 Correct 106 ms 24300 KB Output is correct
53 Correct 107 ms 24308 KB Output is correct
54 Correct 126 ms 28392 KB Output is correct
55 Correct 126 ms 28400 KB Output is correct
56 Correct 674 ms 23796 KB Output is correct
57 Correct 639 ms 23796 KB Output is correct
58 Correct 665 ms 23788 KB Output is correct
59 Correct 1166 ms 24560 KB Output is correct
60 Correct 1114 ms 24616 KB Output is correct
61 Correct 1169 ms 24988 KB Output is correct
62 Correct 1119 ms 24552 KB Output is correct
63 Correct 1096 ms 24680 KB Output is correct
64 Correct 1166 ms 24844 KB Output is correct
65 Correct 1012 ms 24560 KB Output is correct
66 Correct 1166 ms 24944 KB Output is correct
67 Correct 1093 ms 24704 KB Output is correct
68 Correct 1160 ms 24688 KB Output is correct
69 Correct 1084 ms 24516 KB Output is correct
70 Correct 1163 ms 24688 KB Output is correct
71 Correct 1156 ms 24436 KB Output is correct
72 Correct 1173 ms 25124 KB Output is correct
73 Correct 1139 ms 24796 KB Output is correct
74 Correct 268 ms 22000 KB Output is correct
75 Correct 382 ms 22640 KB Output is correct
76 Correct 212 ms 22140 KB Output is correct
77 Correct 1623 ms 29156 KB Output is correct
78 Correct 1620 ms 29156 KB Output is correct
79 Correct 204 ms 22116 KB Output is correct
80 Correct 1720 ms 29160 KB Output is correct
81 Correct 1665 ms 29156 KB Output is correct
82 Correct 1514 ms 28908 KB Output is correct
83 Correct 1511 ms 29028 KB Output is correct
84 Correct 258 ms 22124 KB Output is correct
85 Correct 1530 ms 28900 KB Output is correct
86 Correct 1514 ms 28912 KB Output is correct
87 Correct 249 ms 21996 KB Output is correct
88 Correct 1101 ms 24300 KB Output is correct
89 Correct 1067 ms 24248 KB Output is correct
90 Correct 876 ms 24168 KB Output is correct
91 Correct 850 ms 23920 KB Output is correct
92 Correct 709 ms 23796 KB Output is correct
93 Correct 1084 ms 24604 KB Output is correct
94 Correct 1010 ms 24648 KB Output is correct
95 Correct 1270 ms 28528 KB Output is correct
96 Correct 1233 ms 28528 KB Output is correct
97 Incorrect 659 ms 68308 KB Output isn't correct
98 Halted 0 ms 0 KB -