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Submission #283635

# Submission time Handle Problem Language Result Execution time Memory
283635 2020-08-26T04:02:52 Z arnold518 Iqea (innopolis2018_final_C) C++14
36 / 100
 1841 ms 262148 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<vector<int>> adj, cdist;
	vector<int> sz, del, cpar, cdep;
	//int sz[MAXN+10], del[MAXN+10], cpar[MAXN+10], cdist[MAXN+10][30], cdep[MAXN+10];

	Tree()
	{
		M=0;
		sz=del=cpar=cdep=vector<int>(MAXN+10);
		cdist.resize(MAXN+10);
		for(auto &it : cdist) it.resize(30);
		adj.resize(MAXN+10);
	}

	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);
		//for(int i=1; i<=M; i++) assert(del[i]);
	}

	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++)
	{
		for(auto it : LX[i])
		{
		int p=0;
			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++)
	{
		for(auto it : LY[i])
		{
			int p=0;
			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);
	bool flag=false;
	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]]);
			}
			flag=true;
		}
		else
		{
			if(!flag) { printf("-1\n"); continue; }
			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;
			//if(ans!=-1) assert(flag);
			printf("%d\n", ans);
		}
	}
}

Compilation message

C.cpp: In function 'int main()':
C.cpp:140:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  140 |   for(int j=0; j+1<X[i].size(); j++)
      |                ~~~^~~~~~~~~~~~
C.cpp:159:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Line>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  159 |    for(; p<LX[i-1].size() && LX[i-1][p].r<it.l; p++);
      |          ~^~~~~~~~~~~~~~~
C.cpp:160:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Line>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  160 |    for(; p<LX[i-1].size() && LX[i-1][p].l<=it.r; p++)
      |          ~^~~~~~~~~~~~~~~
C.cpp:179:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  179 |   for(int j=0; j+1<Y[i].size(); j++)
      |                ~~~^~~~~~~~~~~~
C.cpp:198:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Line>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  198 |    for(; p<LY[i-1].size() && LY[i-1][p].r<it.l; p++);
      |          ~^~~~~~~~~~~~~~~
C.cpp:199:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Line>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  199 |    for(; p<LY[i-1].size() && LY[i-1][p].l<=it.r; p++)
      |          ~^~~~~~~~~~~~~~~
C.cpp:124:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  124 |  scanf("%d", &N);
      |  ~~~~~^~~~~~~~~~
C.cpp:128:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  128 |   scanf("%d%d", &y, &x);
      |   ~~~~~^~~~~~~~~~~~~~~~
C.cpp:225:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  225 |  scanf("%d", &Q);
      |  ~~~~~^~~~~~~~~~
C.cpp:230:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  230 |   scanf("%d%d%d", &tt, &y, &x);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 51960 KB Output is correct
2 Correct 49 ms 51960 KB Output is correct
3 Correct 45 ms 52088 KB Output is correct
4 Correct 104 ms 56452 KB Output is correct
5 Correct 98 ms 56424 KB Output is correct
6 Correct 105 ms 56432 KB Output is correct
7 Correct 144 ms 56564 KB Output is correct
8 Correct 141 ms 56684 KB Output is correct
9 Correct 152 ms 56680 KB Output is correct
10 Correct 140 ms 56556 KB Output is correct
11 Correct 143 ms 56556 KB Output is correct
12 Correct 146 ms 56684 KB Output is correct
13 Correct 142 ms 56712 KB Output is correct
14 Correct 145 ms 56684 KB Output is correct
15 Correct 134 ms 56812 KB Output is correct
16 Correct 154 ms 60776 KB Output is correct
17 Correct 141 ms 56552 KB Output is correct
18 Correct 152 ms 56560 KB Output is correct
19 Correct 127 ms 56552 KB Output is correct
20 Correct 155 ms 56684 KB Output is correct
21 Correct 159 ms 56684 KB Output is correct
22 Correct 175 ms 60904 KB Output is correct
23 Correct 176 ms 60900 KB Output is correct
24 Correct 185 ms 61028 KB Output is correct
25 Correct 69 ms 54000 KB Output is correct
26 Correct 76 ms 54764 KB Output is correct
27 Correct 65 ms 54128 KB Output is correct
28 Correct 176 ms 61032 KB Output is correct
29 Correct 206 ms 61164 KB Output is correct
30 Correct 194 ms 61160 KB Output is correct
31 Correct 182 ms 61156 KB Output is correct
32 Correct 202 ms 61040 KB Output is correct
33 Correct 200 ms 60900 KB Output is correct
34 Correct 201 ms 61028 KB Output is correct
35 Correct 208 ms 61028 KB Output is correct
36 Correct 76 ms 54128 KB Output is correct
37 Correct 186 ms 61140 KB Output is correct
38 Correct 187 ms 61032 KB Output is correct
39 Correct 218 ms 61156 KB Output is correct
40 Correct 180 ms 61156 KB Output is correct
41 Correct 180 ms 61028 KB Output is correct
42 Correct 184 ms 61028 KB Output is correct
43 Correct 70 ms 54004 KB Output is correct
44 Correct 205 ms 61028 KB Output is correct
45 Correct 176 ms 60932 KB Output is correct
46 Correct 75 ms 53944 KB Output is correct
47 Correct 124 ms 56552 KB Output is correct
48 Correct 156 ms 56532 KB Output is correct
49 Correct 124 ms 56428 KB Output is correct
50 Correct 128 ms 56556 KB Output is correct
51 Correct 113 ms 56428 KB Output is correct
52 Correct 136 ms 56680 KB Output is correct
53 Correct 139 ms 56680 KB Output is correct
54 Correct 162 ms 60772 KB Output is correct
55 Correct 177 ms 60772 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 50 ms 51960 KB Output is correct
2 Correct 49 ms 51960 KB Output is correct
3 Correct 45 ms 52088 KB Output is correct
4 Correct 104 ms 56452 KB Output is correct
5 Correct 98 ms 56424 KB Output is correct
6 Correct 105 ms 56432 KB Output is correct
7 Correct 144 ms 56564 KB Output is correct
8 Correct 141 ms 56684 KB Output is correct
9 Correct 152 ms 56680 KB Output is correct
10 Correct 140 ms 56556 KB Output is correct
11 Correct 143 ms 56556 KB Output is correct
12 Correct 146 ms 56684 KB Output is correct
13 Correct 142 ms 56712 KB Output is correct
14 Correct 145 ms 56684 KB Output is correct
15 Correct 134 ms 56812 KB Output is correct
16 Correct 154 ms 60776 KB Output is correct
17 Correct 141 ms 56552 KB Output is correct
18 Correct 152 ms 56560 KB Output is correct
19 Correct 127 ms 56552 KB Output is correct
20 Correct 155 ms 56684 KB Output is correct
21 Correct 159 ms 56684 KB Output is correct
22 Correct 175 ms 60904 KB Output is correct
23 Correct 176 ms 60900 KB Output is correct
24 Correct 185 ms 61028 KB Output is correct
25 Correct 69 ms 54000 KB Output is correct
26 Correct 76 ms 54764 KB Output is correct
27 Correct 65 ms 54128 KB Output is correct
28 Correct 176 ms 61032 KB Output is correct
29 Correct 206 ms 61164 KB Output is correct
30 Correct 194 ms 61160 KB Output is correct
31 Correct 182 ms 61156 KB Output is correct
32 Correct 202 ms 61040 KB Output is correct
33 Correct 200 ms 60900 KB Output is correct
34 Correct 201 ms 61028 KB Output is correct
35 Correct 208 ms 61028 KB Output is correct
36 Correct 76 ms 54128 KB Output is correct
37 Correct 186 ms 61140 KB Output is correct
38 Correct 187 ms 61032 KB Output is correct
39 Correct 218 ms 61156 KB Output is correct
40 Correct 180 ms 61156 KB Output is correct
41 Correct 180 ms 61028 KB Output is correct
42 Correct 184 ms 61028 KB Output is correct
43 Correct 70 ms 54004 KB Output is correct
44 Correct 205 ms 61028 KB Output is correct
45 Correct 176 ms 60932 KB Output is correct
46 Correct 75 ms 53944 KB Output is correct
47 Correct 124 ms 56552 KB Output is correct
48 Correct 156 ms 56532 KB Output is correct
49 Correct 124 ms 56428 KB Output is correct
50 Correct 128 ms 56556 KB Output is correct
51 Correct 113 ms 56428 KB Output is correct
52 Correct 136 ms 56680 KB Output is correct
53 Correct 139 ms 56680 KB Output is correct
54 Correct 162 ms 60772 KB Output is correct
55 Correct 177 ms 60772 KB Output is correct
56 Correct 734 ms 56436 KB Output is correct
57 Correct 735 ms 56424 KB Output is correct
58 Correct 797 ms 56424 KB Output is correct
59 Correct 1252 ms 56684 KB Output is correct
60 Correct 1147 ms 56684 KB Output is correct
61 Correct 1183 ms 56840 KB Output is correct
62 Correct 1194 ms 56556 KB Output is correct
63 Correct 1119 ms 56556 KB Output is correct
64 Correct 1217 ms 56952 KB Output is correct
65 Correct 1055 ms 56684 KB Output is correct
66 Correct 1259 ms 56932 KB Output is correct
67 Correct 1141 ms 56684 KB Output is correct
68 Correct 1220 ms 56732 KB Output is correct
69 Correct 1209 ms 56552 KB Output is correct
70 Correct 1256 ms 56804 KB Output is correct
71 Correct 1225 ms 56684 KB Output is correct
72 Correct 1256 ms 57216 KB Output is correct
73 Correct 1294 ms 57024 KB Output is correct
74 Correct 323 ms 54120 KB Output is correct
75 Correct 391 ms 54760 KB Output is correct
76 Correct 244 ms 54064 KB Output is correct
77 Correct 1674 ms 61032 KB Output is correct
78 Correct 1637 ms 61160 KB Output is correct
79 Correct 234 ms 54128 KB Output is correct
80 Correct 1841 ms 61076 KB Output is correct
81 Correct 1682 ms 61032 KB Output is correct
82 Correct 1557 ms 61028 KB Output is correct
83 Correct 1634 ms 61156 KB Output is correct
84 Correct 296 ms 54256 KB Output is correct
85 Correct 1541 ms 61284 KB Output is correct
86 Correct 1603 ms 61028 KB Output is correct
87 Correct 273 ms 54256 KB Output is correct
88 Correct 1065 ms 56756 KB Output is correct
89 Correct 1088 ms 57060 KB Output is correct
90 Correct 910 ms 56680 KB Output is correct
91 Correct 850 ms 56556 KB Output is correct
92 Correct 714 ms 56552 KB Output is correct
93 Correct 1154 ms 57068 KB Output is correct
94 Correct 1070 ms 57240 KB Output is correct
95 Correct 1301 ms 61028 KB Output is correct
96 Correct 1271 ms 60900 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Runtime error 798 ms 142572 KB Execution killed with signal 11
2 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Runtime error 537 ms 262148 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 50 ms 51960 KB Output is correct
2 Correct 49 ms 51960 KB Output is correct
3 Correct 45 ms 52088 KB Output is correct
4 Correct 104 ms 56452 KB Output is correct
5 Correct 98 ms 56424 KB Output is correct
6 Correct 105 ms 56432 KB Output is correct
7 Correct 144 ms 56564 KB Output is correct
8 Correct 141 ms 56684 KB Output is correct
9 Correct 152 ms 56680 KB Output is correct
10 Correct 140 ms 56556 KB Output is correct
11 Correct 143 ms 56556 KB Output is correct
12 Correct 146 ms 56684 KB Output is correct
13 Correct 142 ms 56712 KB Output is correct
14 Correct 145 ms 56684 KB Output is correct
15 Correct 134 ms 56812 KB Output is correct
16 Correct 154 ms 60776 KB Output is correct
17 Correct 141 ms 56552 KB Output is correct
18 Correct 152 ms 56560 KB Output is correct
19 Correct 127 ms 56552 KB Output is correct
20 Correct 155 ms 56684 KB Output is correct
21 Correct 159 ms 56684 KB Output is correct
22 Correct 175 ms 60904 KB Output is correct
23 Correct 176 ms 60900 KB Output is correct
24 Correct 185 ms 61028 KB Output is correct
25 Correct 69 ms 54000 KB Output is correct
26 Correct 76 ms 54764 KB Output is correct
27 Correct 65 ms 54128 KB Output is correct
28 Correct 176 ms 61032 KB Output is correct
29 Correct 206 ms 61164 KB Output is correct
30 Correct 194 ms 61160 KB Output is correct
31 Correct 182 ms 61156 KB Output is correct
32 Correct 202 ms 61040 KB Output is correct
33 Correct 200 ms 60900 KB Output is correct
34 Correct 201 ms 61028 KB Output is correct
35 Correct 208 ms 61028 KB Output is correct
36 Correct 76 ms 54128 KB Output is correct
37 Correct 186 ms 61140 KB Output is correct
38 Correct 187 ms 61032 KB Output is correct
39 Correct 218 ms 61156 KB Output is correct
40 Correct 180 ms 61156 KB Output is correct
41 Correct 180 ms 61028 KB Output is correct
42 Correct 184 ms 61028 KB Output is correct
43 Correct 70 ms 54004 KB Output is correct
44 Correct 205 ms 61028 KB Output is correct
45 Correct 176 ms 60932 KB Output is correct
46 Correct 75 ms 53944 KB Output is correct
47 Correct 124 ms 56552 KB Output is correct
48 Correct 156 ms 56532 KB Output is correct
49 Correct 124 ms 56428 KB Output is correct
50 Correct 128 ms 56556 KB Output is correct
51 Correct 113 ms 56428 KB Output is correct
52 Correct 136 ms 56680 KB Output is correct
53 Correct 139 ms 56680 KB Output is correct
54 Correct 162 ms 60772 KB Output is correct
55 Correct 177 ms 60772 KB Output is correct
56 Correct 734 ms 56436 KB Output is correct
57 Correct 735 ms 56424 KB Output is correct
58 Correct 797 ms 56424 KB Output is correct
59 Correct 1252 ms 56684 KB Output is correct
60 Correct 1147 ms 56684 KB Output is correct
61 Correct 1183 ms 56840 KB Output is correct
62 Correct 1194 ms 56556 KB Output is correct
63 Correct 1119 ms 56556 KB Output is correct
64 Correct 1217 ms 56952 KB Output is correct
65 Correct 1055 ms 56684 KB Output is correct
66 Correct 1259 ms 56932 KB Output is correct
67 Correct 1141 ms 56684 KB Output is correct
68 Correct 1220 ms 56732 KB Output is correct
69 Correct 1209 ms 56552 KB Output is correct
70 Correct 1256 ms 56804 KB Output is correct
71 Correct 1225 ms 56684 KB Output is correct
72 Correct 1256 ms 57216 KB Output is correct
73 Correct 1294 ms 57024 KB Output is correct
74 Correct 323 ms 54120 KB Output is correct
75 Correct 391 ms 54760 KB Output is correct
76 Correct 244 ms 54064 KB Output is correct
77 Correct 1674 ms 61032 KB Output is correct
78 Correct 1637 ms 61160 KB Output is correct
79 Correct 234 ms 54128 KB Output is correct
80 Correct 1841 ms 61076 KB Output is correct
81 Correct 1682 ms 61032 KB Output is correct
82 Correct 1557 ms 61028 KB Output is correct
83 Correct 1634 ms 61156 KB Output is correct
84 Correct 296 ms 54256 KB Output is correct
85 Correct 1541 ms 61284 KB Output is correct
86 Correct 1603 ms 61028 KB Output is correct
87 Correct 273 ms 54256 KB Output is correct
88 Correct 1065 ms 56756 KB Output is correct
89 Correct 1088 ms 57060 KB Output is correct
90 Correct 910 ms 56680 KB Output is correct
91 Correct 850 ms 56556 KB Output is correct
92 Correct 714 ms 56552 KB Output is correct
93 Correct 1154 ms 57068 KB Output is correct
94 Correct 1070 ms 57240 KB Output is correct
95 Correct 1301 ms 61028 KB Output is correct
96 Correct 1271 ms 60900 KB Output is correct
97 Runtime error 798 ms 142572 KB Execution killed with signal 11
98 Halted 0 ms 0 KB -