Submission #283642

# Submission time Handle Problem Language Result Execution time Memory
283642 2020-08-26T04:13:33 Z arnold518 Iqea (innopolis2018_final_C) C++14
36 / 100
1690 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];
	vector<int> adj[MAXN+10];

	Tree()
	{
		M=0;
		memset(sz, 0, sizeof(sz));
		memset(del, 0, sizeof(del));
		memset(cpar, 0, sizeof(cpar));
		memset(cdist, 0, sizeof(cdist));
		memset(cdep, 0, sizeof(cdep));
		//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--;
		}
	}
	if(cnt!=TX.M-1) while(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--;
		}
	}
	if(cnt!=TY.M-1) while(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:146:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  146 |   for(int j=0; j+1<X[i].size(); j++)
      |                ~~~^~~~~~~~~~~~
C.cpp:165:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Line>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  165 |    for(; p<LX[i-1].size() && LX[i-1][p].r<it.l; p++);
      |          ~^~~~~~~~~~~~~~~
C.cpp:166:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Line>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  166 |    for(; p<LX[i-1].size() && LX[i-1][p].l<=it.r; p++)
      |          ~^~~~~~~~~~~~~~~
C.cpp:185:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  185 |   for(int j=0; j+1<Y[i].size(); j++)
      |                ~~~^~~~~~~~~~~~
C.cpp:204:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Line>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  204 |    for(; p<LY[i-1].size() && LY[i-1][p].r<it.l; p++);
      |          ~^~~~~~~~~~~~~~~
C.cpp:205:11: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<Line>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  205 |    for(; p<LY[i-1].size() && LY[i-1][p].l<=it.r; p++)
      |          ~^~~~~~~~~~~~~~~
C.cpp:130:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  130 |  scanf("%d", &N);
      |  ~~~~~^~~~~~~~~~
C.cpp:134:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  134 |   scanf("%d%d", &y, &x);
      |   ~~~~~^~~~~~~~~~~~~~~~
C.cpp:231:7: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  231 |  scanf("%d", &Q);
      |  ~~~~~^~~~~~~~~~
C.cpp:236:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  236 |   scanf("%d%d%d", &tt, &y, &x);
      |   ~~~~~^~~~~~~~~~~~~~~~~~~~~~~
# Verdict Execution time Memory Grader output
1 Correct 30 ms 45688 KB Output is correct
2 Correct 30 ms 45696 KB Output is correct
3 Correct 34 ms 45816 KB Output is correct
4 Correct 88 ms 50284 KB Output is correct
5 Correct 103 ms 50156 KB Output is correct
6 Correct 93 ms 50284 KB Output is correct
7 Correct 123 ms 50408 KB Output is correct
8 Correct 126 ms 50416 KB Output is correct
9 Correct 153 ms 50408 KB Output is correct
10 Correct 125 ms 50408 KB Output is correct
11 Correct 129 ms 50408 KB Output is correct
12 Correct 161 ms 50408 KB Output is correct
13 Correct 130 ms 50532 KB Output is correct
14 Correct 129 ms 50416 KB Output is correct
15 Correct 119 ms 50408 KB Output is correct
16 Correct 148 ms 54628 KB Output is correct
17 Correct 131 ms 50408 KB Output is correct
18 Correct 137 ms 50408 KB Output is correct
19 Correct 110 ms 50408 KB Output is correct
20 Correct 124 ms 50408 KB Output is correct
21 Correct 127 ms 50416 KB Output is correct
22 Correct 159 ms 54760 KB Output is correct
23 Correct 150 ms 54704 KB Output is correct
24 Correct 168 ms 54884 KB Output is correct
25 Correct 65 ms 47856 KB Output is correct
26 Correct 62 ms 48624 KB Output is correct
27 Correct 49 ms 47860 KB Output is correct
28 Correct 164 ms 54884 KB Output is correct
29 Correct 166 ms 54884 KB Output is correct
30 Correct 173 ms 55016 KB Output is correct
31 Correct 168 ms 54888 KB Output is correct
32 Correct 164 ms 54884 KB Output is correct
33 Correct 169 ms 54760 KB Output is correct
34 Correct 176 ms 54884 KB Output is correct
35 Correct 196 ms 54888 KB Output is correct
36 Correct 52 ms 47988 KB Output is correct
37 Correct 178 ms 54896 KB Output is correct
38 Correct 169 ms 54884 KB Output is correct
39 Correct 171 ms 54888 KB Output is correct
40 Correct 174 ms 55016 KB Output is correct
41 Correct 166 ms 54760 KB Output is correct
42 Correct 158 ms 54760 KB Output is correct
43 Correct 62 ms 47728 KB Output is correct
44 Correct 166 ms 54756 KB Output is correct
45 Correct 159 ms 54756 KB Output is correct
46 Correct 52 ms 47856 KB Output is correct
47 Correct 114 ms 50420 KB Output is correct
48 Correct 125 ms 50280 KB Output is correct
49 Correct 102 ms 50280 KB Output is correct
50 Correct 99 ms 50288 KB Output is correct
51 Correct 87 ms 50284 KB Output is correct
52 Correct 119 ms 50412 KB Output is correct
53 Correct 125 ms 50540 KB Output is correct
54 Correct 131 ms 54504 KB Output is correct
55 Correct 132 ms 54504 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 30 ms 45688 KB Output is correct
2 Correct 30 ms 45696 KB Output is correct
3 Correct 34 ms 45816 KB Output is correct
4 Correct 88 ms 50284 KB Output is correct
5 Correct 103 ms 50156 KB Output is correct
6 Correct 93 ms 50284 KB Output is correct
7 Correct 123 ms 50408 KB Output is correct
8 Correct 126 ms 50416 KB Output is correct
9 Correct 153 ms 50408 KB Output is correct
10 Correct 125 ms 50408 KB Output is correct
11 Correct 129 ms 50408 KB Output is correct
12 Correct 161 ms 50408 KB Output is correct
13 Correct 130 ms 50532 KB Output is correct
14 Correct 129 ms 50416 KB Output is correct
15 Correct 119 ms 50408 KB Output is correct
16 Correct 148 ms 54628 KB Output is correct
17 Correct 131 ms 50408 KB Output is correct
18 Correct 137 ms 50408 KB Output is correct
19 Correct 110 ms 50408 KB Output is correct
20 Correct 124 ms 50408 KB Output is correct
21 Correct 127 ms 50416 KB Output is correct
22 Correct 159 ms 54760 KB Output is correct
23 Correct 150 ms 54704 KB Output is correct
24 Correct 168 ms 54884 KB Output is correct
25 Correct 65 ms 47856 KB Output is correct
26 Correct 62 ms 48624 KB Output is correct
27 Correct 49 ms 47860 KB Output is correct
28 Correct 164 ms 54884 KB Output is correct
29 Correct 166 ms 54884 KB Output is correct
30 Correct 173 ms 55016 KB Output is correct
31 Correct 168 ms 54888 KB Output is correct
32 Correct 164 ms 54884 KB Output is correct
33 Correct 169 ms 54760 KB Output is correct
34 Correct 176 ms 54884 KB Output is correct
35 Correct 196 ms 54888 KB Output is correct
36 Correct 52 ms 47988 KB Output is correct
37 Correct 178 ms 54896 KB Output is correct
38 Correct 169 ms 54884 KB Output is correct
39 Correct 171 ms 54888 KB Output is correct
40 Correct 174 ms 55016 KB Output is correct
41 Correct 166 ms 54760 KB Output is correct
42 Correct 158 ms 54760 KB Output is correct
43 Correct 62 ms 47728 KB Output is correct
44 Correct 166 ms 54756 KB Output is correct
45 Correct 159 ms 54756 KB Output is correct
46 Correct 52 ms 47856 KB Output is correct
47 Correct 114 ms 50420 KB Output is correct
48 Correct 125 ms 50280 KB Output is correct
49 Correct 102 ms 50280 KB Output is correct
50 Correct 99 ms 50288 KB Output is correct
51 Correct 87 ms 50284 KB Output is correct
52 Correct 119 ms 50412 KB Output is correct
53 Correct 125 ms 50540 KB Output is correct
54 Correct 131 ms 54504 KB Output is correct
55 Correct 132 ms 54504 KB Output is correct
56 Correct 706 ms 50292 KB Output is correct
57 Correct 660 ms 50284 KB Output is correct
58 Correct 678 ms 50284 KB Output is correct
59 Correct 1151 ms 50680 KB Output is correct
60 Correct 1134 ms 50636 KB Output is correct
61 Correct 1188 ms 50908 KB Output is correct
62 Correct 1163 ms 50536 KB Output is correct
63 Correct 1107 ms 50536 KB Output is correct
64 Correct 1193 ms 51200 KB Output is correct
65 Correct 1032 ms 50544 KB Output is correct
66 Correct 1201 ms 51044 KB Output is correct
67 Correct 1156 ms 50780 KB Output is correct
68 Correct 1144 ms 50700 KB Output is correct
69 Correct 1074 ms 50516 KB Output is correct
70 Correct 1174 ms 50868 KB Output is correct
71 Correct 1160 ms 50540 KB Output is correct
72 Correct 1186 ms 51164 KB Output is correct
73 Correct 1153 ms 51032 KB Output is correct
74 Correct 286 ms 48104 KB Output is correct
75 Correct 380 ms 48632 KB Output is correct
76 Correct 233 ms 48124 KB Output is correct
77 Correct 1674 ms 55012 KB Output is correct
78 Correct 1605 ms 55012 KB Output is correct
79 Correct 231 ms 48124 KB Output is correct
80 Correct 1690 ms 55008 KB Output is correct
81 Correct 1616 ms 55140 KB Output is correct
82 Correct 1492 ms 54884 KB Output is correct
83 Correct 1515 ms 54756 KB Output is correct
84 Correct 284 ms 47728 KB Output is correct
85 Correct 1544 ms 54756 KB Output is correct
86 Correct 1530 ms 54760 KB Output is correct
87 Correct 255 ms 47736 KB Output is correct
88 Correct 1042 ms 50284 KB Output is correct
89 Correct 1060 ms 50524 KB Output is correct
90 Correct 892 ms 50152 KB Output is correct
91 Correct 859 ms 50152 KB Output is correct
92 Correct 696 ms 50164 KB Output is correct
93 Correct 1083 ms 50656 KB Output is correct
94 Correct 1020 ms 50508 KB Output is correct
95 Correct 1234 ms 54508 KB Output is correct
96 Correct 1209 ms 54504 KB Output is correct
# Verdict Execution time Memory Grader output
1 Incorrect 689 ms 81108 KB Output isn't correct
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Runtime error 546 ms 262148 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 30 ms 45688 KB Output is correct
2 Correct 30 ms 45696 KB Output is correct
3 Correct 34 ms 45816 KB Output is correct
4 Correct 88 ms 50284 KB Output is correct
5 Correct 103 ms 50156 KB Output is correct
6 Correct 93 ms 50284 KB Output is correct
7 Correct 123 ms 50408 KB Output is correct
8 Correct 126 ms 50416 KB Output is correct
9 Correct 153 ms 50408 KB Output is correct
10 Correct 125 ms 50408 KB Output is correct
11 Correct 129 ms 50408 KB Output is correct
12 Correct 161 ms 50408 KB Output is correct
13 Correct 130 ms 50532 KB Output is correct
14 Correct 129 ms 50416 KB Output is correct
15 Correct 119 ms 50408 KB Output is correct
16 Correct 148 ms 54628 KB Output is correct
17 Correct 131 ms 50408 KB Output is correct
18 Correct 137 ms 50408 KB Output is correct
19 Correct 110 ms 50408 KB Output is correct
20 Correct 124 ms 50408 KB Output is correct
21 Correct 127 ms 50416 KB Output is correct
22 Correct 159 ms 54760 KB Output is correct
23 Correct 150 ms 54704 KB Output is correct
24 Correct 168 ms 54884 KB Output is correct
25 Correct 65 ms 47856 KB Output is correct
26 Correct 62 ms 48624 KB Output is correct
27 Correct 49 ms 47860 KB Output is correct
28 Correct 164 ms 54884 KB Output is correct
29 Correct 166 ms 54884 KB Output is correct
30 Correct 173 ms 55016 KB Output is correct
31 Correct 168 ms 54888 KB Output is correct
32 Correct 164 ms 54884 KB Output is correct
33 Correct 169 ms 54760 KB Output is correct
34 Correct 176 ms 54884 KB Output is correct
35 Correct 196 ms 54888 KB Output is correct
36 Correct 52 ms 47988 KB Output is correct
37 Correct 178 ms 54896 KB Output is correct
38 Correct 169 ms 54884 KB Output is correct
39 Correct 171 ms 54888 KB Output is correct
40 Correct 174 ms 55016 KB Output is correct
41 Correct 166 ms 54760 KB Output is correct
42 Correct 158 ms 54760 KB Output is correct
43 Correct 62 ms 47728 KB Output is correct
44 Correct 166 ms 54756 KB Output is correct
45 Correct 159 ms 54756 KB Output is correct
46 Correct 52 ms 47856 KB Output is correct
47 Correct 114 ms 50420 KB Output is correct
48 Correct 125 ms 50280 KB Output is correct
49 Correct 102 ms 50280 KB Output is correct
50 Correct 99 ms 50288 KB Output is correct
51 Correct 87 ms 50284 KB Output is correct
52 Correct 119 ms 50412 KB Output is correct
53 Correct 125 ms 50540 KB Output is correct
54 Correct 131 ms 54504 KB Output is correct
55 Correct 132 ms 54504 KB Output is correct
56 Correct 706 ms 50292 KB Output is correct
57 Correct 660 ms 50284 KB Output is correct
58 Correct 678 ms 50284 KB Output is correct
59 Correct 1151 ms 50680 KB Output is correct
60 Correct 1134 ms 50636 KB Output is correct
61 Correct 1188 ms 50908 KB Output is correct
62 Correct 1163 ms 50536 KB Output is correct
63 Correct 1107 ms 50536 KB Output is correct
64 Correct 1193 ms 51200 KB Output is correct
65 Correct 1032 ms 50544 KB Output is correct
66 Correct 1201 ms 51044 KB Output is correct
67 Correct 1156 ms 50780 KB Output is correct
68 Correct 1144 ms 50700 KB Output is correct
69 Correct 1074 ms 50516 KB Output is correct
70 Correct 1174 ms 50868 KB Output is correct
71 Correct 1160 ms 50540 KB Output is correct
72 Correct 1186 ms 51164 KB Output is correct
73 Correct 1153 ms 51032 KB Output is correct
74 Correct 286 ms 48104 KB Output is correct
75 Correct 380 ms 48632 KB Output is correct
76 Correct 233 ms 48124 KB Output is correct
77 Correct 1674 ms 55012 KB Output is correct
78 Correct 1605 ms 55012 KB Output is correct
79 Correct 231 ms 48124 KB Output is correct
80 Correct 1690 ms 55008 KB Output is correct
81 Correct 1616 ms 55140 KB Output is correct
82 Correct 1492 ms 54884 KB Output is correct
83 Correct 1515 ms 54756 KB Output is correct
84 Correct 284 ms 47728 KB Output is correct
85 Correct 1544 ms 54756 KB Output is correct
86 Correct 1530 ms 54760 KB Output is correct
87 Correct 255 ms 47736 KB Output is correct
88 Correct 1042 ms 50284 KB Output is correct
89 Correct 1060 ms 50524 KB Output is correct
90 Correct 892 ms 50152 KB Output is correct
91 Correct 859 ms 50152 KB Output is correct
92 Correct 696 ms 50164 KB Output is correct
93 Correct 1083 ms 50656 KB Output is correct
94 Correct 1020 ms 50508 KB Output is correct
95 Correct 1234 ms 54508 KB Output is correct
96 Correct 1209 ms 54504 KB Output is correct
97 Incorrect 689 ms 81108 KB Output isn't correct
98 Halted 0 ms 0 KB -