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Submission #283631

# Submission time Handle Problem Language Result Execution time Memory
283631 2020-08-26T03:57:18 Z arnold518 Iqea (innopolis2018_final_C) C++14
36 / 100
 1716 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++)
	{
		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);
	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 46 ms 51964 KB Output is correct
2 Correct 45 ms 51960 KB Output is correct
3 Correct 48 ms 52088 KB Output is correct
4 Correct 104 ms 56424 KB Output is correct
5 Correct 100 ms 56424 KB Output is correct
6 Correct 106 ms 56552 KB Output is correct
7 Correct 139 ms 56684 KB Output is correct
8 Correct 144 ms 56684 KB Output is correct
9 Correct 146 ms 56680 KB Output is correct
10 Correct 140 ms 56564 KB Output is correct
11 Correct 146 ms 56556 KB Output is correct
12 Correct 148 ms 56684 KB Output is correct
13 Correct 145 ms 56684 KB Output is correct
14 Correct 146 ms 56688 KB Output is correct
15 Correct 144 ms 56684 KB Output is correct
16 Correct 162 ms 60780 KB Output is correct
17 Correct 144 ms 56552 KB Output is correct
18 Correct 147 ms 56556 KB Output is correct
19 Correct 127 ms 56552 KB Output is correct
20 Correct 146 ms 56684 KB Output is correct
21 Correct 148 ms 56684 KB Output is correct
22 Correct 171 ms 60908 KB Output is correct
23 Correct 193 ms 60932 KB Output is correct
24 Correct 195 ms 61132 KB Output is correct
25 Correct 69 ms 54000 KB Output is correct
26 Correct 78 ms 54764 KB Output is correct
27 Correct 65 ms 54128 KB Output is correct
28 Correct 178 ms 61032 KB Output is correct
29 Correct 182 ms 61036 KB Output is correct
30 Correct 194 ms 61160 KB Output is correct
31 Correct 199 ms 61156 KB Output is correct
32 Correct 187 ms 61032 KB Output is correct
33 Correct 185 ms 60900 KB Output is correct
34 Correct 228 ms 61028 KB Output is correct
35 Correct 190 ms 61028 KB Output is correct
36 Correct 65 ms 54128 KB Output is correct
37 Correct 193 ms 61156 KB Output is correct
38 Correct 188 ms 61032 KB Output is correct
39 Correct 189 ms 61136 KB Output is correct
40 Correct 189 ms 61156 KB Output is correct
41 Correct 181 ms 61028 KB Output is correct
42 Correct 177 ms 61156 KB Output is correct
43 Correct 78 ms 54004 KB Output is correct
44 Correct 176 ms 61028 KB Output is correct
45 Correct 181 ms 61028 KB Output is correct
46 Correct 67 ms 54004 KB Output is correct
47 Correct 132 ms 56548 KB Output is correct
48 Correct 131 ms 56556 KB Output is correct
49 Correct 126 ms 56428 KB Output is correct
50 Correct 117 ms 56428 KB Output is correct
51 Correct 105 ms 56424 KB Output is correct
52 Correct 134 ms 56680 KB Output is correct
53 Correct 150 ms 56804 KB Output is correct
54 Correct 149 ms 60772 KB Output is correct
55 Correct 150 ms 60772 KB Output is correct

Subtask #2
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 46 ms 51964 KB Output is correct
2 Correct 45 ms 51960 KB Output is correct
3 Correct 48 ms 52088 KB Output is correct
4 Correct 104 ms 56424 KB Output is correct
5 Correct 100 ms 56424 KB Output is correct
6 Correct 106 ms 56552 KB Output is correct
7 Correct 139 ms 56684 KB Output is correct
8 Correct 144 ms 56684 KB Output is correct
9 Correct 146 ms 56680 KB Output is correct
10 Correct 140 ms 56564 KB Output is correct
11 Correct 146 ms 56556 KB Output is correct
12 Correct 148 ms 56684 KB Output is correct
13 Correct 145 ms 56684 KB Output is correct
14 Correct 146 ms 56688 KB Output is correct
15 Correct 144 ms 56684 KB Output is correct
16 Correct 162 ms 60780 KB Output is correct
17 Correct 144 ms 56552 KB Output is correct
18 Correct 147 ms 56556 KB Output is correct
19 Correct 127 ms 56552 KB Output is correct
20 Correct 146 ms 56684 KB Output is correct
21 Correct 148 ms 56684 KB Output is correct
22 Correct 171 ms 60908 KB Output is correct
23 Correct 193 ms 60932 KB Output is correct
24 Correct 195 ms 61132 KB Output is correct
25 Correct 69 ms 54000 KB Output is correct
26 Correct 78 ms 54764 KB Output is correct
27 Correct 65 ms 54128 KB Output is correct
28 Correct 178 ms 61032 KB Output is correct
29 Correct 182 ms 61036 KB Output is correct
30 Correct 194 ms 61160 KB Output is correct
31 Correct 199 ms 61156 KB Output is correct
32 Correct 187 ms 61032 KB Output is correct
33 Correct 185 ms 60900 KB Output is correct
34 Correct 228 ms 61028 KB Output is correct
35 Correct 190 ms 61028 KB Output is correct
36 Correct 65 ms 54128 KB Output is correct
37 Correct 193 ms 61156 KB Output is correct
38 Correct 188 ms 61032 KB Output is correct
39 Correct 189 ms 61136 KB Output is correct
40 Correct 189 ms 61156 KB Output is correct
41 Correct 181 ms 61028 KB Output is correct
42 Correct 177 ms 61156 KB Output is correct
43 Correct 78 ms 54004 KB Output is correct
44 Correct 176 ms 61028 KB Output is correct
45 Correct 181 ms 61028 KB Output is correct
46 Correct 67 ms 54004 KB Output is correct
47 Correct 132 ms 56548 KB Output is correct
48 Correct 131 ms 56556 KB Output is correct
49 Correct 126 ms 56428 KB Output is correct
50 Correct 117 ms 56428 KB Output is correct
51 Correct 105 ms 56424 KB Output is correct
52 Correct 134 ms 56680 KB Output is correct
53 Correct 150 ms 56804 KB Output is correct
54 Correct 149 ms 60772 KB Output is correct
55 Correct 150 ms 60772 KB Output is correct
56 Correct 732 ms 56424 KB Output is correct
57 Correct 720 ms 56360 KB Output is correct
58 Correct 721 ms 56424 KB Output is correct
59 Correct 1158 ms 56724 KB Output is correct
60 Correct 1174 ms 56684 KB Output is correct
61 Correct 1223 ms 56684 KB Output is correct
62 Correct 1205 ms 56692 KB Output is correct
63 Correct 1135 ms 56684 KB Output is correct
64 Correct 1250 ms 57064 KB Output is correct
65 Correct 1114 ms 56712 KB Output is correct
66 Correct 1254 ms 57076 KB Output is correct
67 Correct 1186 ms 56688 KB Output is correct
68 Correct 1215 ms 56624 KB Output is correct
69 Correct 1188 ms 56552 KB Output is correct
70 Correct 1270 ms 56660 KB Output is correct
71 Correct 1282 ms 56640 KB Output is correct
72 Correct 1244 ms 57024 KB Output is correct
73 Correct 1239 ms 56964 KB Output is correct
74 Correct 295 ms 54004 KB Output is correct
75 Correct 402 ms 54760 KB Output is correct
76 Correct 238 ms 54128 KB Output is correct
77 Correct 1678 ms 61160 KB Output is correct
78 Correct 1687 ms 61160 KB Output is correct
79 Correct 233 ms 54132 KB Output is correct
80 Correct 1716 ms 61160 KB Output is correct
81 Correct 1711 ms 61032 KB Output is correct
82 Correct 1617 ms 61028 KB Output is correct
83 Correct 1566 ms 61028 KB Output is correct
84 Correct 301 ms 54004 KB Output is correct
85 Correct 1619 ms 61028 KB Output is correct
86 Correct 1574 ms 60900 KB Output is correct
87 Correct 273 ms 54012 KB Output is correct
88 Correct 1097 ms 56552 KB Output is correct
89 Correct 1104 ms 56680 KB Output is correct
90 Correct 928 ms 56424 KB Output is correct
91 Correct 892 ms 56428 KB Output is correct
92 Correct 729 ms 56432 KB Output is correct
93 Correct 1165 ms 56928 KB Output is correct
94 Correct 1090 ms 56800 KB Output is correct
95 Correct 1257 ms 60776 KB Output is correct
96 Correct 1293 ms 60772 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Runtime error 787 ms 142196 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 536 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 46 ms 51964 KB Output is correct
2 Correct 45 ms 51960 KB Output is correct
3 Correct 48 ms 52088 KB Output is correct
4 Correct 104 ms 56424 KB Output is correct
5 Correct 100 ms 56424 KB Output is correct
6 Correct 106 ms 56552 KB Output is correct
7 Correct 139 ms 56684 KB Output is correct
8 Correct 144 ms 56684 KB Output is correct
9 Correct 146 ms 56680 KB Output is correct
10 Correct 140 ms 56564 KB Output is correct
11 Correct 146 ms 56556 KB Output is correct
12 Correct 148 ms 56684 KB Output is correct
13 Correct 145 ms 56684 KB Output is correct
14 Correct 146 ms 56688 KB Output is correct
15 Correct 144 ms 56684 KB Output is correct
16 Correct 162 ms 60780 KB Output is correct
17 Correct 144 ms 56552 KB Output is correct
18 Correct 147 ms 56556 KB Output is correct
19 Correct 127 ms 56552 KB Output is correct
20 Correct 146 ms 56684 KB Output is correct
21 Correct 148 ms 56684 KB Output is correct
22 Correct 171 ms 60908 KB Output is correct
23 Correct 193 ms 60932 KB Output is correct
24 Correct 195 ms 61132 KB Output is correct
25 Correct 69 ms 54000 KB Output is correct
26 Correct 78 ms 54764 KB Output is correct
27 Correct 65 ms 54128 KB Output is correct
28 Correct 178 ms 61032 KB Output is correct
29 Correct 182 ms 61036 KB Output is correct
30 Correct 194 ms 61160 KB Output is correct
31 Correct 199 ms 61156 KB Output is correct
32 Correct 187 ms 61032 KB Output is correct
33 Correct 185 ms 60900 KB Output is correct
34 Correct 228 ms 61028 KB Output is correct
35 Correct 190 ms 61028 KB Output is correct
36 Correct 65 ms 54128 KB Output is correct
37 Correct 193 ms 61156 KB Output is correct
38 Correct 188 ms 61032 KB Output is correct
39 Correct 189 ms 61136 KB Output is correct
40 Correct 189 ms 61156 KB Output is correct
41 Correct 181 ms 61028 KB Output is correct
42 Correct 177 ms 61156 KB Output is correct
43 Correct 78 ms 54004 KB Output is correct
44 Correct 176 ms 61028 KB Output is correct
45 Correct 181 ms 61028 KB Output is correct
46 Correct 67 ms 54004 KB Output is correct
47 Correct 132 ms 56548 KB Output is correct
48 Correct 131 ms 56556 KB Output is correct
49 Correct 126 ms 56428 KB Output is correct
50 Correct 117 ms 56428 KB Output is correct
51 Correct 105 ms 56424 KB Output is correct
52 Correct 134 ms 56680 KB Output is correct
53 Correct 150 ms 56804 KB Output is correct
54 Correct 149 ms 60772 KB Output is correct
55 Correct 150 ms 60772 KB Output is correct
56 Correct 732 ms 56424 KB Output is correct
57 Correct 720 ms 56360 KB Output is correct
58 Correct 721 ms 56424 KB Output is correct
59 Correct 1158 ms 56724 KB Output is correct
60 Correct 1174 ms 56684 KB Output is correct
61 Correct 1223 ms 56684 KB Output is correct
62 Correct 1205 ms 56692 KB Output is correct
63 Correct 1135 ms 56684 KB Output is correct
64 Correct 1250 ms 57064 KB Output is correct
65 Correct 1114 ms 56712 KB Output is correct
66 Correct 1254 ms 57076 KB Output is correct
67 Correct 1186 ms 56688 KB Output is correct
68 Correct 1215 ms 56624 KB Output is correct
69 Correct 1188 ms 56552 KB Output is correct
70 Correct 1270 ms 56660 KB Output is correct
71 Correct 1282 ms 56640 KB Output is correct
72 Correct 1244 ms 57024 KB Output is correct
73 Correct 1239 ms 56964 KB Output is correct
74 Correct 295 ms 54004 KB Output is correct
75 Correct 402 ms 54760 KB Output is correct
76 Correct 238 ms 54128 KB Output is correct
77 Correct 1678 ms 61160 KB Output is correct
78 Correct 1687 ms 61160 KB Output is correct
79 Correct 233 ms 54132 KB Output is correct
80 Correct 1716 ms 61160 KB Output is correct
81 Correct 1711 ms 61032 KB Output is correct
82 Correct 1617 ms 61028 KB Output is correct
83 Correct 1566 ms 61028 KB Output is correct
84 Correct 301 ms 54004 KB Output is correct
85 Correct 1619 ms 61028 KB Output is correct
86 Correct 1574 ms 60900 KB Output is correct
87 Correct 273 ms 54012 KB Output is correct
88 Correct 1097 ms 56552 KB Output is correct
89 Correct 1104 ms 56680 KB Output is correct
90 Correct 928 ms 56424 KB Output is correct
91 Correct 892 ms 56428 KB Output is correct
92 Correct 729 ms 56432 KB Output is correct
93 Correct 1165 ms 56928 KB Output is correct
94 Correct 1090 ms 56800 KB Output is correct
95 Correct 1257 ms 60776 KB Output is correct
96 Correct 1293 ms 60772 KB Output is correct
97 Runtime error 787 ms 142196 KB Execution killed with signal 11
98 Halted 0 ms 0 KB -