oj.uz

Submission #435521

# Submission time Handle Problem Language Result Execution time Memory
435521 2021-06-23T11:55:56 Z b00n0rp Fountain Parks (IOI21_parks) C++17
45 / 100
 1077 ms 46744 KB 
#include "parks.h"
#include<bits/stdc++.h>

using namespace std;

#define int long long

#define REP(i,n) for(int i = 0; i < n; i ++)
#define FOR(i,a,b) for(int i = a; i < b; i ++)
#define vi vector<int>
#define pb push_back
#define SZ(v) (int)v.size()
#define remax(a,b) a = max(a,b)
#define remin(a,b) a = min(a,b)
#define all(v) v.begin(),v.end()
#define pii pair<int,int>
#define F first
#define S second

const int MX = 200005;

int n;
pii a[MX];
set<pair<pii,int> > st;

vector<pii> dir = {{-2,0},{2,0},{0,-2},{0,2}};

vi adj[MX];
int par[MX];

int find(int x){
	if(par[x] == x) return x;
	return par[x] = find(par[x]);
}

signed construct_roads(vector<signed> x, vector<signed> y){
	n = SZ(x);
	REP(i,n){
		a[i] = {x[i],y[i]};
		st.insert({a[i],i});
		par[i] = i;
	}
	vector<pii> edges;
	REP(i,n){
		REP(j,4){
			pii bruh = {x[i]+dir[j].F,y[i]+dir[j].S};
			auto it = st.lower_bound({bruh,0});
			if(it != st.end()){
				if((*it).F == bruh){
					adj[i].pb((*it).S);
					if(i < (*it).S) edges.pb({i,(*it).S});
				}
			}
		}
	}
    vector<signed> u0, v0, a0, b0;
	for(auto i:edges){
		int u = i.F,v = i.S;
		// cout << u << " " << v << "\n";
		if(find(u) == find(v)) continue;
		if(a[u] > a[v]) swap(u,v);
		if(x[u] != x[v]){
			continue;
		}
		else{
			par[find(u)] = find(v);
			u0.pb(u);
			v0.pb(v);
			if((x[u]+y[u])%4 == 0){
				a0.pb(x[u]-1);
				b0.pb(y[u]+1);
			}
			else{
				a0.pb(x[u]+1);
				b0.pb(y[u]+1);
			}
		}
	}
	for(auto i:edges){
		int u = i.F,v = i.S;
		// cout << u << " " << v << "\n";
		if(find(u) == find(v)) continue;
		if(a[u] > a[v]) swap(u,v);
		if(x[u] != x[v]){
			par[find(u)] = find(v);
			u0.pb(u);
			v0.pb(v);
			if((x[u]+y[u])%4 == 0){
				a0.pb(x[u]+1);
				b0.pb(y[u]+1);
			}
			else{
				a0.pb(x[u]+1);
				b0.pb(y[u]-1);
			}
		}
		else{
			continue;
		}
	}
	REP(i,n){
		if(find(i) != find(1)) return 0;
	}
    build(u0, v0, a0, b0);
    return 1;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 4 ms 4940 KB Output is correct
3 Correct 5 ms 4940 KB Output is correct
4 Correct 4 ms 4940 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 4 ms 4940 KB Output is correct
7 Correct 4 ms 4940 KB Output is correct
8 Correct 4 ms 4940 KB Output is correct
9 Correct 228 ms 24956 KB Output is correct
10 Correct 17 ms 7112 KB Output is correct
11 Correct 82 ms 16392 KB Output is correct
12 Correct 28 ms 8184 KB Output is correct
13 Correct 52 ms 13240 KB Output is correct
14 Correct 6 ms 5068 KB Output is correct
15 Correct 5 ms 5324 KB Output is correct
16 Correct 243 ms 24828 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 4 ms 4940 KB Output is correct
3 Correct 5 ms 4940 KB Output is correct
4 Correct 4 ms 4940 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 4 ms 4940 KB Output is correct
7 Correct 4 ms 4940 KB Output is correct
8 Correct 4 ms 4940 KB Output is correct
9 Correct 228 ms 24956 KB Output is correct
10 Correct 17 ms 7112 KB Output is correct
11 Correct 82 ms 16392 KB Output is correct
12 Correct 28 ms 8184 KB Output is correct
13 Correct 52 ms 13240 KB Output is correct
14 Correct 6 ms 5068 KB Output is correct
15 Correct 5 ms 5324 KB Output is correct
16 Correct 243 ms 24828 KB Output is correct
17 Correct 4 ms 4940 KB Output is correct
18 Incorrect 4 ms 4940 KB Tree @(3, 5) appears more than once: for edges on positions 0 and 1
19 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 4 ms 4940 KB Output is correct
3 Correct 5 ms 4940 KB Output is correct
4 Correct 4 ms 4940 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 4 ms 4940 KB Output is correct
7 Correct 4 ms 4940 KB Output is correct
8 Correct 4 ms 4940 KB Output is correct
9 Correct 228 ms 24956 KB Output is correct
10 Correct 17 ms 7112 KB Output is correct
11 Correct 82 ms 16392 KB Output is correct
12 Correct 28 ms 8184 KB Output is correct
13 Correct 52 ms 13240 KB Output is correct
14 Correct 6 ms 5068 KB Output is correct
15 Correct 5 ms 5324 KB Output is correct
16 Correct 243 ms 24828 KB Output is correct
17 Correct 4 ms 4940 KB Output is correct
18 Incorrect 4 ms 4940 KB Tree @(3, 5) appears more than once: for edges on positions 0 and 1
19 Halted 0 ms 0 KB -

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 4 ms 4940 KB Output is correct
3 Correct 5 ms 4940 KB Output is correct
4 Correct 4 ms 4940 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 4 ms 4940 KB Output is correct
7 Correct 4 ms 4940 KB Output is correct
8 Correct 4 ms 4940 KB Output is correct
9 Correct 228 ms 24956 KB Output is correct
10 Correct 17 ms 7112 KB Output is correct
11 Correct 82 ms 16392 KB Output is correct
12 Correct 28 ms 8184 KB Output is correct
13 Correct 52 ms 13240 KB Output is correct
14 Correct 6 ms 5068 KB Output is correct
15 Correct 5 ms 5324 KB Output is correct
16 Correct 243 ms 24828 KB Output is correct
17 Correct 5 ms 4940 KB Output is correct
18 Correct 5 ms 4940 KB Output is correct
19 Correct 4 ms 4940 KB Output is correct
20 Correct 699 ms 45268 KB Output is correct
21 Correct 748 ms 45008 KB Output is correct
22 Correct 727 ms 45136 KB Output is correct
23 Correct 577 ms 39252 KB Output is correct
24 Correct 620 ms 25332 KB Output is correct
25 Correct 810 ms 40184 KB Output is correct
26 Correct 596 ms 40076 KB Output is correct
27 Correct 713 ms 44852 KB Output is correct
28 Correct 674 ms 44856 KB Output is correct
29 Correct 920 ms 44820 KB Output is correct
30 Correct 834 ms 44804 KB Output is correct
31 Correct 5 ms 4940 KB Output is correct
32 Correct 36 ms 7860 KB Output is correct
33 Correct 164 ms 15132 KB Output is correct
34 Correct 602 ms 45328 KB Output is correct
35 Correct 24 ms 6856 KB Output is correct
36 Correct 137 ms 13924 KB Output is correct
37 Correct 295 ms 23020 KB Output is correct
38 Correct 227 ms 21760 KB Output is correct
39 Correct 425 ms 27432 KB Output is correct
40 Correct 576 ms 34600 KB Output is correct
41 Correct 757 ms 40332 KB Output is correct
42 Correct 1050 ms 46084 KB Output is correct
43 Correct 3 ms 4940 KB Output is correct
44 Correct 4 ms 4940 KB Output is correct
45 Correct 3 ms 4940 KB Output is correct
46 Correct 4 ms 4940 KB Output is correct
47 Correct 4 ms 4940 KB Output is correct
48 Correct 4 ms 4940 KB Output is correct
49 Correct 8 ms 4940 KB Output is correct
50 Correct 3 ms 4940 KB Output is correct
51 Correct 3 ms 4940 KB Output is correct
52 Correct 3 ms 4940 KB Output is correct
53 Correct 3 ms 4940 KB Output is correct
54 Correct 5 ms 5324 KB Output is correct
55 Correct 7 ms 5452 KB Output is correct
56 Correct 288 ms 25284 KB Output is correct
57 Correct 544 ms 35236 KB Output is correct
58 Correct 521 ms 35248 KB Output is correct
59 Correct 4 ms 4940 KB Output is correct
60 Correct 4 ms 4940 KB Output is correct
61 Correct 4 ms 4940 KB Output is correct
62 Correct 640 ms 44824 KB Output is correct
63 Correct 604 ms 44752 KB Output is correct
64 Correct 619 ms 44624 KB Output is correct
65 Correct 8 ms 5708 KB Output is correct
66 Correct 14 ms 6312 KB Output is correct
67 Correct 304 ms 25244 KB Output is correct
68 Correct 537 ms 36088 KB Output is correct
69 Correct 869 ms 45600 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 4 ms 4940 KB Output is correct
3 Correct 5 ms 4940 KB Output is correct
4 Correct 4 ms 4940 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 4 ms 4940 KB Output is correct
7 Correct 4 ms 4940 KB Output is correct
8 Correct 4 ms 4940 KB Output is correct
9 Correct 228 ms 24956 KB Output is correct
10 Correct 17 ms 7112 KB Output is correct
11 Correct 82 ms 16392 KB Output is correct
12 Correct 28 ms 8184 KB Output is correct
13 Correct 52 ms 13240 KB Output is correct
14 Correct 6 ms 5068 KB Output is correct
15 Correct 5 ms 5324 KB Output is correct
16 Correct 243 ms 24828 KB Output is correct
17 Correct 698 ms 44912 KB Output is correct
18 Correct 703 ms 44948 KB Output is correct
19 Correct 748 ms 45068 KB Output is correct
20 Correct 936 ms 46144 KB Output is correct
21 Correct 808 ms 40940 KB Output is correct
22 Correct 3 ms 4940 KB Output is correct
23 Correct 70 ms 11480 KB Output is correct
24 Correct 38 ms 8752 KB Output is correct
25 Correct 221 ms 18344 KB Output is correct
26 Correct 375 ms 26824 KB Output is correct
27 Correct 350 ms 25896 KB Output is correct
28 Correct 462 ms 30664 KB Output is correct
29 Correct 655 ms 37040 KB Output is correct
30 Correct 725 ms 41892 KB Output is correct
31 Correct 1077 ms 46744 KB Output is correct
32 Correct 958 ms 46716 KB Output is correct
33 Correct 639 ms 44820 KB Output is correct
34 Correct 10 ms 5836 KB Output is correct
35 Correct 19 ms 6672 KB Output is correct
36 Correct 387 ms 25540 KB Output is correct
37 Correct 520 ms 36588 KB Output is correct
38 Correct 868 ms 46060 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4940 KB Output is correct
2 Correct 4 ms 4940 KB Output is correct
3 Correct 5 ms 4940 KB Output is correct
4 Correct 4 ms 4940 KB Output is correct
5 Correct 4 ms 4940 KB Output is correct
6 Correct 4 ms 4940 KB Output is correct
7 Correct 4 ms 4940 KB Output is correct
8 Correct 4 ms 4940 KB Output is correct
9 Correct 228 ms 24956 KB Output is correct
10 Correct 17 ms 7112 KB Output is correct
11 Correct 82 ms 16392 KB Output is correct
12 Correct 28 ms 8184 KB Output is correct
13 Correct 52 ms 13240 KB Output is correct
14 Correct 6 ms 5068 KB Output is correct
15 Correct 5 ms 5324 KB Output is correct
16 Correct 243 ms 24828 KB Output is correct
17 Correct 4 ms 4940 KB Output is correct
18 Incorrect 4 ms 4940 KB Tree @(3, 5) appears more than once: for edges on positions 0 and 1
19 Halted 0 ms 0 KB -