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Submission #283622

# Submission time Handle Problem Language Result Execution time Memory
283622 2020-08-26T03:38:35 Z arnold518 Iqea (innopolis2018_final_C) C++14
36 / 100
 1653 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);
	}

	int cnt=0;
	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);
				cnt++;
				//printf("adjX %d %d\n", u, v);
			}
			if(p) p--;
		}
	}
	assert(cnt==TX.M-1);

	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);
	}

	cnt=0;
	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);
				cnt++;
				//printf("adjY %d %d\n", u, v);
			}
			if(p) p--;
		}
	}
	assert(cnt==TY.M-1);

	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: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].r<it.l; p++);
      |          ~^~~~~~~~~~~~~~~
C.cpp:151:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Line>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  151 |    for(; p<LX[i-1].size() && LX[i-1][p].l<=it.r; p++)
      |          ~^~~~~~~~~~~~~~~
C.cpp:170:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  170 |   for(int j=0; j+1<Y[i].size(); j++)
      |                ~~~^~~~~~~~~~~~
C.cpp:189:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Line>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  189 |    for(; p<LY[i-1].size() && LY[i-1][p].r<it.l; p++);
      |          ~^~~~~~~~~~~~~~~
C.cpp:190:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Line>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  190 |    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:216:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  216 |  scanf("%d", &Q);
      |  ~~~~~^~~~~~~~~~
C.cpp:220:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  220 |   scanf("%d%d%d", &tt, &y, &x);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 19200 KB Output is correct
2 Correct 14 ms 19200 KB Output is correct
3 Correct 15 ms 19328 KB Output is correct
4 Correct 74 ms 23772 KB Output is correct
5 Correct 68 ms 23668 KB Output is correct
6 Correct 75 ms 23796 KB Output is correct
7 Correct 108 ms 24552 KB Output is correct
8 Correct 125 ms 24560 KB Output is correct
9 Correct 115 ms 24560 KB Output is correct
10 Correct 109 ms 24432 KB Output is correct
11 Correct 112 ms 24560 KB Output is correct
12 Correct 120 ms 24560 KB Output is correct
13 Correct 112 ms 24560 KB Output is correct
14 Correct 116 ms 24552 KB Output is correct
15 Correct 124 ms 24552 KB Output is correct
16 Correct 128 ms 28644 KB Output is correct
17 Correct 131 ms 24424 KB Output is correct
18 Correct 120 ms 24464 KB Output is correct
19 Correct 99 ms 24304 KB Output is correct
20 Correct 114 ms 24680 KB Output is correct
21 Correct 121 ms 24516 KB Output is correct
22 Correct 138 ms 28776 KB Output is correct
23 Correct 139 ms 28956 KB Output is correct
24 Correct 155 ms 28908 KB Output is correct
25 Correct 39 ms 21880 KB Output is correct
26 Correct 47 ms 22640 KB Output is correct
27 Correct 34 ms 22012 KB Output is correct
28 Correct 162 ms 29028 KB Output is correct
29 Correct 144 ms 29032 KB Output is correct
30 Correct 165 ms 29032 KB Output is correct
31 Correct 159 ms 29032 KB Output is correct
32 Correct 155 ms 28908 KB Output is correct
33 Correct 170 ms 28852 KB Output is correct
34 Correct 155 ms 28908 KB Output is correct
35 Correct 161 ms 29036 KB Output is correct
36 Correct 34 ms 22012 KB Output is correct
37 Correct 163 ms 29036 KB Output is correct
38 Correct 153 ms 29028 KB Output is correct
39 Correct 153 ms 29040 KB Output is correct
40 Correct 154 ms 29040 KB Output is correct
41 Correct 158 ms 29036 KB Output is correct
42 Correct 145 ms 28776 KB Output is correct
43 Correct 40 ms 21880 KB Output is correct
44 Correct 143 ms 28900 KB Output is correct
45 Correct 156 ms 28900 KB Output is correct
46 Correct 38 ms 21872 KB Output is correct
47 Correct 102 ms 24340 KB Output is correct
48 Correct 100 ms 24048 KB Output is correct
49 Correct 95 ms 23916 KB Output is correct
50 Correct 86 ms 23920 KB Output is correct
51 Correct 76 ms 23764 KB Output is correct
52 Correct 107 ms 24308 KB Output is correct
53 Correct 116 ms 24308 KB Output is correct
54 Correct 129 ms 28392 KB Output is correct
55 Correct 128 ms 28400 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 19200 KB Output is correct
2 Correct 14 ms 19200 KB Output is correct
3 Correct 15 ms 19328 KB Output is correct
4 Correct 74 ms 23772 KB Output is correct
5 Correct 68 ms 23668 KB Output is correct
6 Correct 75 ms 23796 KB Output is correct
7 Correct 108 ms 24552 KB Output is correct
8 Correct 125 ms 24560 KB Output is correct
9 Correct 115 ms 24560 KB Output is correct
10 Correct 109 ms 24432 KB Output is correct
11 Correct 112 ms 24560 KB Output is correct
12 Correct 120 ms 24560 KB Output is correct
13 Correct 112 ms 24560 KB Output is correct
14 Correct 116 ms 24552 KB Output is correct
15 Correct 124 ms 24552 KB Output is correct
16 Correct 128 ms 28644 KB Output is correct
17 Correct 131 ms 24424 KB Output is correct
18 Correct 120 ms 24464 KB Output is correct
19 Correct 99 ms 24304 KB Output is correct
20 Correct 114 ms 24680 KB Output is correct
21 Correct 121 ms 24516 KB Output is correct
22 Correct 138 ms 28776 KB Output is correct
23 Correct 139 ms 28956 KB Output is correct
24 Correct 155 ms 28908 KB Output is correct
25 Correct 39 ms 21880 KB Output is correct
26 Correct 47 ms 22640 KB Output is correct
27 Correct 34 ms 22012 KB Output is correct
28 Correct 162 ms 29028 KB Output is correct
29 Correct 144 ms 29032 KB Output is correct
30 Correct 165 ms 29032 KB Output is correct
31 Correct 159 ms 29032 KB Output is correct
32 Correct 155 ms 28908 KB Output is correct
33 Correct 170 ms 28852 KB Output is correct
34 Correct 155 ms 28908 KB Output is correct
35 Correct 161 ms 29036 KB Output is correct
36 Correct 34 ms 22012 KB Output is correct
37 Correct 163 ms 29036 KB Output is correct
38 Correct 153 ms 29028 KB Output is correct
39 Correct 153 ms 29040 KB Output is correct
40 Correct 154 ms 29040 KB Output is correct
41 Correct 158 ms 29036 KB Output is correct
42 Correct 145 ms 28776 KB Output is correct
43 Correct 40 ms 21880 KB Output is correct
44 Correct 143 ms 28900 KB Output is correct
45 Correct 156 ms 28900 KB Output is correct
46 Correct 38 ms 21872 KB Output is correct
47 Correct 102 ms 24340 KB Output is correct
48 Correct 100 ms 24048 KB Output is correct
49 Correct 95 ms 23916 KB Output is correct
50 Correct 86 ms 23920 KB Output is correct
51 Correct 76 ms 23764 KB Output is correct
52 Correct 107 ms 24308 KB Output is correct
53 Correct 116 ms 24308 KB Output is correct
54 Correct 129 ms 28392 KB Output is correct
55 Correct 128 ms 28400 KB Output is correct
56 Correct 707 ms 23796 KB Output is correct
57 Correct 644 ms 23796 KB Output is correct
58 Correct 662 ms 23788 KB Output is correct
59 Correct 1127 ms 24552 KB Output is correct
60 Correct 1133 ms 24668 KB Output is correct
61 Correct 1164 ms 24800 KB Output is correct
62 Correct 1144 ms 24768 KB Output is correct
63 Correct 1133 ms 24552 KB Output is correct
64 Correct 1230 ms 24924 KB Output is correct
65 Correct 1020 ms 24560 KB Output is correct
66 Correct 1174 ms 25004 KB Output is correct
67 Correct 1203 ms 24560 KB Output is correct
68 Correct 1137 ms 24740 KB Output is correct
69 Correct 1113 ms 24668 KB Output is correct
70 Correct 1190 ms 24796 KB Output is correct
71 Correct 1216 ms 24432 KB Output is correct
72 Correct 1173 ms 25052 KB Output is correct
73 Correct 1149 ms 24900 KB Output is correct
74 Correct 283 ms 22124 KB Output is correct
75 Correct 368 ms 22648 KB Output is correct
76 Correct 207 ms 22128 KB Output is correct
77 Correct 1614 ms 29036 KB Output is correct
78 Correct 1607 ms 29028 KB Output is correct
79 Correct 198 ms 22012 KB Output is correct
80 Correct 1641 ms 29024 KB Output is correct
81 Correct 1653 ms 29028 KB Output is correct
82 Correct 1517 ms 28900 KB Output is correct
83 Correct 1512 ms 28900 KB Output is correct
84 Correct 263 ms 21872 KB Output is correct
85 Correct 1529 ms 28900 KB Output is correct
86 Correct 1602 ms 28904 KB Output is correct
87 Correct 241 ms 21992 KB Output is correct
88 Correct 1032 ms 24308 KB Output is correct
89 Correct 1061 ms 24280 KB Output is correct
90 Correct 882 ms 24048 KB Output is correct
91 Correct 830 ms 23920 KB Output is correct
92 Correct 688 ms 23788 KB Output is correct
93 Correct 1080 ms 24544 KB Output is correct
94 Correct 1004 ms 24672 KB Output is correct
95 Correct 1208 ms 28392 KB Output is correct
96 Correct 1213 ms 28392 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Incorrect 684 ms 68192 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 502 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 19200 KB Output is correct
2 Correct 14 ms 19200 KB Output is correct
3 Correct 15 ms 19328 KB Output is correct
4 Correct 74 ms 23772 KB Output is correct
5 Correct 68 ms 23668 KB Output is correct
6 Correct 75 ms 23796 KB Output is correct
7 Correct 108 ms 24552 KB Output is correct
8 Correct 125 ms 24560 KB Output is correct
9 Correct 115 ms 24560 KB Output is correct
10 Correct 109 ms 24432 KB Output is correct
11 Correct 112 ms 24560 KB Output is correct
12 Correct 120 ms 24560 KB Output is correct
13 Correct 112 ms 24560 KB Output is correct
14 Correct 116 ms 24552 KB Output is correct
15 Correct 124 ms 24552 KB Output is correct
16 Correct 128 ms 28644 KB Output is correct
17 Correct 131 ms 24424 KB Output is correct
18 Correct 120 ms 24464 KB Output is correct
19 Correct 99 ms 24304 KB Output is correct
20 Correct 114 ms 24680 KB Output is correct
21 Correct 121 ms 24516 KB Output is correct
22 Correct 138 ms 28776 KB Output is correct
23 Correct 139 ms 28956 KB Output is correct
24 Correct 155 ms 28908 KB Output is correct
25 Correct 39 ms 21880 KB Output is correct
26 Correct 47 ms 22640 KB Output is correct
27 Correct 34 ms 22012 KB Output is correct
28 Correct 162 ms 29028 KB Output is correct
29 Correct 144 ms 29032 KB Output is correct
30 Correct 165 ms 29032 KB Output is correct
31 Correct 159 ms 29032 KB Output is correct
32 Correct 155 ms 28908 KB Output is correct
33 Correct 170 ms 28852 KB Output is correct
34 Correct 155 ms 28908 KB Output is correct
35 Correct 161 ms 29036 KB Output is correct
36 Correct 34 ms 22012 KB Output is correct
37 Correct 163 ms 29036 KB Output is correct
38 Correct 153 ms 29028 KB Output is correct
39 Correct 153 ms 29040 KB Output is correct
40 Correct 154 ms 29040 KB Output is correct
41 Correct 158 ms 29036 KB Output is correct
42 Correct 145 ms 28776 KB Output is correct
43 Correct 40 ms 21880 KB Output is correct
44 Correct 143 ms 28900 KB Output is correct
45 Correct 156 ms 28900 KB Output is correct
46 Correct 38 ms 21872 KB Output is correct
47 Correct 102 ms 24340 KB Output is correct
48 Correct 100 ms 24048 KB Output is correct
49 Correct 95 ms 23916 KB Output is correct
50 Correct 86 ms 23920 KB Output is correct
51 Correct 76 ms 23764 KB Output is correct
52 Correct 107 ms 24308 KB Output is correct
53 Correct 116 ms 24308 KB Output is correct
54 Correct 129 ms 28392 KB Output is correct
55 Correct 128 ms 28400 KB Output is correct
56 Correct 707 ms 23796 KB Output is correct
57 Correct 644 ms 23796 KB Output is correct
58 Correct 662 ms 23788 KB Output is correct
59 Correct 1127 ms 24552 KB Output is correct
60 Correct 1133 ms 24668 KB Output is correct
61 Correct 1164 ms 24800 KB Output is correct
62 Correct 1144 ms 24768 KB Output is correct
63 Correct 1133 ms 24552 KB Output is correct
64 Correct 1230 ms 24924 KB Output is correct
65 Correct 1020 ms 24560 KB Output is correct
66 Correct 1174 ms 25004 KB Output is correct
67 Correct 1203 ms 24560 KB Output is correct
68 Correct 1137 ms 24740 KB Output is correct
69 Correct 1113 ms 24668 KB Output is correct
70 Correct 1190 ms 24796 KB Output is correct
71 Correct 1216 ms 24432 KB Output is correct
72 Correct 1173 ms 25052 KB Output is correct
73 Correct 1149 ms 24900 KB Output is correct
74 Correct 283 ms 22124 KB Output is correct
75 Correct 368 ms 22648 KB Output is correct
76 Correct 207 ms 22128 KB Output is correct
77 Correct 1614 ms 29036 KB Output is correct
78 Correct 1607 ms 29028 KB Output is correct
79 Correct 198 ms 22012 KB Output is correct
80 Correct 1641 ms 29024 KB Output is correct
81 Correct 1653 ms 29028 KB Output is correct
82 Correct 1517 ms 28900 KB Output is correct
83 Correct 1512 ms 28900 KB Output is correct
84 Correct 263 ms 21872 KB Output is correct
85 Correct 1529 ms 28900 KB Output is correct
86 Correct 1602 ms 28904 KB Output is correct
87 Correct 241 ms 21992 KB Output is correct
88 Correct 1032 ms 24308 KB Output is correct
89 Correct 1061 ms 24280 KB Output is correct
90 Correct 882 ms 24048 KB Output is correct
91 Correct 830 ms 23920 KB Output is correct
92 Correct 688 ms 23788 KB Output is correct
93 Correct 1080 ms 24544 KB Output is correct
94 Correct 1004 ms 24672 KB Output is correct
95 Correct 1208 ms 28392 KB Output is correct
96 Correct 1213 ms 28392 KB Output is correct
97 Incorrect 684 ms 68192 KB Output isn't correct
98 Halted 0 ms 0 KB -