oj.uz

Submission #567544

# Submission time Handle Problem Language Result Execution time Memory
567544 2022-05-23T16:57:44 Z PiejanVDC Fountain Parks (IOI21_parks) C++17
5 / 100
 593 ms 36892 KB 
#include <bits/stdc++.h>
#include "parks.h"
using namespace std;
 
void build(vector<int>u, vector<int>v, vector<int>a, vector<int>b);
 
int construct_roads(std::vector<int> xx, std::vector<int> yy) {
	const int n = (int)xx.size();
	set<pair<int,int>>s;
	set<pair<int,int>>t;
	map<pair<int,int>,int>id;

	for(int i = 0 ; i < n ; i++)
		s.insert({xx[i], yy[i]}), id[{xx[i], yy[i]}] = i;

	int F,S;

	for(int i = 0 ; i < n ; i++) {
		if(!s.count({xx[i]-2, yy[i]}))
			F = xx[i], S = yy[i];
	}

	queue<pair<pair<int,int>, int>>st;
	st.push({{F, S}, 0});
	
	s.erase(s.find({F, S}));

	vector<int>u,v,a,b;

	auto process = [&] (int X, int Y, int T) -> void {
		s.erase(s.find({X,Y}));
		u.push_back(id[{X,Y}]);
		st.push({{X, Y}, T});
		if(T == 0) {
			v.push_back(id[{X-2,Y}]);
			if(!t.count({X-1, Y+1}))
				t.insert({X-1, Y+1}), a.push_back(X-1), b.push_back(Y+1);
			else
				t.insert({X-1, Y-1}), a.push_back(X-1), b.push_back(Y-1);
		} else if(T == 1) {
			v.push_back(id[{X,Y+2}]);
			if(!t.count({X+1, Y+1}))
				t.insert({X+1, Y+1}), a.push_back(X+1), b.push_back(Y+1);
			else
				t.insert({X-1, Y+1}), a.push_back(X-1), b.push_back(Y+1);
		} else if(T == 2) {
			v.push_back(id[{X+2,Y}]);
			if(!t.count({X+1, Y-1}))
				t.insert({X+1, Y-1}), a.push_back(X+1), b.push_back(Y-1);
			else
				t.insert({X+1, Y+1}), a.push_back(X+1), b.push_back(Y+1);
		} else {
			v.push_back(id[{X,Y-2}]);
			if(t.count({X-1, Y-1}))
				t.insert({X-1, Y-1}), a.push_back(X-1), b.push_back(Y-1);
			else
				t.insert({X+1, Y-1}), a.push_back(X+1), b.push_back(Y-1);
		}
	};
	int cnt = 0;
	while(!st.empty()) {
		auto [x,y] = st.front().first;
		int d = st.front().second;
		st.pop();
		cnt++;
		if(d == 0) {
			if(s.count({x, y+2})) {
				process(x, y+2, 3);
				if(s.count({x+2, y}))
					process(x+2, y, 0);
				if(s.count({x, y-2}))
					process(x, y-2, 1);
			} else {
				if(s.count({x, y-2}))
					process(x, y-2, 1);
				if(s.count({x+2, y}))
					process(x+2, y, 0);
			}
		} else if(d == 1) {
			if(s.count({x+2, y})) {
				process(x+2, y, 0);
				if(s.count({x, y-2}))
					process(x, y-2, 1);
				if(s.count({x-2, y}))
					process(x-2, y, 2);
			} else {
				if(s.count({x-2, y}))
					process(x-2, y, 2);
				if(s.count({x, y-2}))
					process(x, y-2, 1);
			}
		} else if(d == 2) {
			if(s.count({x, y-2})) {
				process(x, y-2, 1);
				if(s.count({x-2, y}))
					process(x-2, y, 2);
				if(s.count({x, y+2}))
					process(x, y+2, 3);
			} else {
				if(s.count({x, y+2}))
					process(x, y+2, 3);
				if(s.count({x-2, y}))
					process(x-2, y, 2);
			}
		} else {
			if(s.count({x-2, y})) {
				process(x-2, y, 2);
				if(s.count({x, y+2}))
					process(x, y+2, 3);
				if(s.count({x+2, y}))
					process(x+2, y, 0);
			} else {
				if(s.count({x+2, y}))
					process(x+2, y, 0);
				if(s.count({x, y+2}))
					process(x, y+2, 3);
			}
		}
	}

	if(cnt < n)
		return 0;
	build(u,v,a,b);
	return 1;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 292 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 296 KB Output is correct
9 Correct 197 ms 18468 KB Output is correct
10 Correct 14 ms 2260 KB Output is correct
11 Correct 85 ms 10144 KB Output is correct
12 Correct 20 ms 3204 KB Output is correct
13 Correct 36 ms 6460 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 2 ms 460 KB Output is correct
16 Correct 226 ms 18452 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 292 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 296 KB Output is correct
9 Correct 197 ms 18468 KB Output is correct
10 Correct 14 ms 2260 KB Output is correct
11 Correct 85 ms 10144 KB Output is correct
12 Correct 20 ms 3204 KB Output is correct
13 Correct 36 ms 6460 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 2 ms 460 KB Output is correct
16 Correct 226 ms 18452 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 304 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Incorrect 593 ms 36488 KB Tree @(3, 91603) appears more than once: for edges on positions 3 and 4
24 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 292 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 296 KB Output is correct
9 Correct 197 ms 18468 KB Output is correct
10 Correct 14 ms 2260 KB Output is correct
11 Correct 85 ms 10144 KB Output is correct
12 Correct 20 ms 3204 KB Output is correct
13 Correct 36 ms 6460 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 2 ms 460 KB Output is correct
16 Correct 226 ms 18452 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 304 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Incorrect 593 ms 36488 KB Tree @(3, 91603) appears more than once: for edges on positions 3 and 4
24 Halted 0 ms 0 KB -

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 292 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 296 KB Output is correct
9 Correct 197 ms 18468 KB Output is correct
10 Correct 14 ms 2260 KB Output is correct
11 Correct 85 ms 10144 KB Output is correct
12 Correct 20 ms 3204 KB Output is correct
13 Correct 36 ms 6460 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 2 ms 460 KB Output is correct
16 Correct 226 ms 18452 KB Output is correct
17 Incorrect 1 ms 212 KB Tree @(199999, 3) appears more than once: for edges on positions 0 and 1
18 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 292 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 296 KB Output is correct
9 Correct 197 ms 18468 KB Output is correct
10 Correct 14 ms 2260 KB Output is correct
11 Correct 85 ms 10144 KB Output is correct
12 Correct 20 ms 3204 KB Output is correct
13 Correct 36 ms 6460 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 2 ms 460 KB Output is correct
16 Correct 226 ms 18452 KB Output is correct
17 Incorrect 586 ms 36892 KB Tree @(100001, 3) appears more than once: for edges on positions 145133 and 145135
18 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 1 ms 292 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 296 KB Output is correct
9 Correct 197 ms 18468 KB Output is correct
10 Correct 14 ms 2260 KB Output is correct
11 Correct 85 ms 10144 KB Output is correct
12 Correct 20 ms 3204 KB Output is correct
13 Correct 36 ms 6460 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 2 ms 460 KB Output is correct
16 Correct 226 ms 18452 KB Output is correct
17 Correct 1 ms 212 KB Output is correct
18 Correct 1 ms 212 KB Output is correct
19 Correct 1 ms 212 KB Output is correct
20 Correct 1 ms 304 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Incorrect 593 ms 36488 KB Tree @(3, 91603) appears more than once: for edges on positions 3 and 4
24 Halted 0 ms 0 KB -