oj.uz

Submission #1052834

# Submission time Handle Problem Language Result Execution time Memory
1052834 2024-08-11T04:19:56 Z ReLice Fountain Parks (IOI21_parks) C++17
45 / 100
 362 ms 88816 KB 
#include "parks.h"
#include <bits/stdc++.h>
#define pb push_back
#define ll int
#define ins insert
#define sz size()
#define vll vector<ll>
#define sc second
using namespace std;
const int N=2e5+5;
const int inf=1e9;
map<pair<ll,ll>, ll> f;
vll xx, yy;

ll xd[4] = {0, 2, 0, -2}, yd[4] = {2, 0, -2, 0};
ll bx[2][4] = {{-1, 1,  1, -1}, {1,  1, -1, -1}};
ll by[2][4] = {{ 1, 1, -1, -1}, {1, -1, -1,  1}};

set<pair<ll,ll>> vis;
vll v,u,a,b;
ll n,c;
bool ok(ll x,ll y){
	bool free = (vis.find({x, y}) == vis.end());
	if(x % 2) return free;
	return free && f[{x,y}];
}
void dfs(ll x, ll y){
	c++;
	vis.ins({x, y});
	for(ll i=0;i<4;i++){
		ll nx = x + xd[i], ny = y + yd[i];
		
		ll p = (x + y) / 2 % 2;
		ll aa = x + bx[p][i], bb = y + by[p][i];
		
		if(!ok(nx, ny) || !ok(aa, bb)) continue;
		
		v.pb(f[{x,y}]-1);
		u.pb(f[{nx,ny}]-1);
		a.pb(aa);
		b.pb(bb);
		
		dfs(nx, ny);
	}
}
int construct_roads(vector<int> X, vector<int> Y) {
	n=X.size();
	
	for(int i=0;i<(int)X.size();i++){
		f[{X[i], Y[i]}] = i + 1;
	}
	
	xx.pb(0);
	yy.pb(0);
	for(auto i : X) xx.pb(i);
	for(auto i : Y) yy.pb(i);
	
	dfs(xx[1], yy[1]);
	
	if(c != 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 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 412 KB Output is correct
9 Correct 150 ms 43452 KB Output is correct
10 Correct 10 ms 4956 KB Output is correct
11 Correct 80 ms 23900 KB Output is correct
12 Correct 17 ms 7256 KB Output is correct
13 Correct 45 ms 13908 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 144 ms 38304 KB Output is correct

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 412 KB Output is correct
9 Correct 150 ms 43452 KB Output is correct
10 Correct 10 ms 4956 KB Output is correct
11 Correct 80 ms 23900 KB Output is correct
12 Correct 17 ms 7256 KB Output is correct
13 Correct 45 ms 13908 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 144 ms 38304 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Incorrect 0 ms 348 KB Tree @(3, 5) appears more than once: for edges on positions 0 and 2
19 Halted 0 ms 0 KB -

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 412 KB Output is correct
9 Correct 150 ms 43452 KB Output is correct
10 Correct 10 ms 4956 KB Output is correct
11 Correct 80 ms 23900 KB Output is correct
12 Correct 17 ms 7256 KB Output is correct
13 Correct 45 ms 13908 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 144 ms 38304 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Incorrect 0 ms 348 KB Tree @(3, 5) appears more than once: for edges on positions 0 and 2
19 Halted 0 ms 0 KB -

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 412 KB Output is correct
9 Correct 150 ms 43452 KB Output is correct
10 Correct 10 ms 4956 KB Output is correct
11 Correct 80 ms 23900 KB Output is correct
12 Correct 17 ms 7256 KB Output is correct
13 Correct 45 ms 13908 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 144 ms 38304 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 298 ms 76680 KB Output is correct
21 Correct 288 ms 71212 KB Output is correct
22 Correct 283 ms 68556 KB Output is correct
23 Correct 244 ms 68016 KB Output is correct
24 Correct 79 ms 19964 KB Output is correct
25 Correct 77 ms 20004 KB Output is correct
26 Correct 77 ms 19916 KB Output is correct
27 Correct 242 ms 50996 KB Output is correct
28 Correct 246 ms 51020 KB Output is correct
29 Correct 352 ms 51028 KB Output is correct
30 Correct 343 ms 50768 KB Output is correct
31 Correct 0 ms 344 KB Output is correct
32 Correct 17 ms 4956 KB Output is correct
33 Correct 36 ms 10604 KB Output is correct
34 Correct 283 ms 72432 KB Output is correct
35 Correct 6 ms 1884 KB Output is correct
36 Correct 23 ms 6528 KB Output is correct
37 Correct 43 ms 11332 KB Output is correct
38 Correct 99 ms 19752 KB Output is correct
39 Correct 149 ms 26440 KB Output is correct
40 Correct 190 ms 34372 KB Output is correct
41 Correct 240 ms 41124 KB Output is correct
42 Correct 306 ms 48148 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 600 KB Output is correct
47 Correct 1 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 1 ms 344 KB Output is correct
52 Correct 0 ms 436 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 2 ms 856 KB Output is correct
55 Correct 2 ms 860 KB Output is correct
56 Correct 140 ms 35812 KB Output is correct
57 Correct 227 ms 52656 KB Output is correct
58 Correct 220 ms 51852 KB Output is correct
59 Correct 1 ms 348 KB Output is correct
60 Correct 0 ms 348 KB Output is correct
61 Correct 0 ms 348 KB Output is correct
62 Correct 362 ms 74948 KB Output is correct
63 Correct 314 ms 75348 KB Output is correct
64 Correct 314 ms 77636 KB Output is correct
65 Correct 2 ms 1112 KB Output is correct
66 Correct 3 ms 1368 KB Output is correct
67 Correct 135 ms 30708 KB Output is correct
68 Correct 213 ms 49220 KB Output is correct
69 Correct 310 ms 61380 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 412 KB Output is correct
9 Correct 150 ms 43452 KB Output is correct
10 Correct 10 ms 4956 KB Output is correct
11 Correct 80 ms 23900 KB Output is correct
12 Correct 17 ms 7256 KB Output is correct
13 Correct 45 ms 13908 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 144 ms 38304 KB Output is correct
17 Correct 336 ms 88816 KB Output is correct
18 Correct 288 ms 78936 KB Output is correct
19 Correct 284 ms 76816 KB Output is correct
20 Correct 247 ms 57940 KB Output is correct
21 Correct 252 ms 60536 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 36 ms 10024 KB Output is correct
24 Correct 15 ms 3776 KB Output is correct
25 Correct 33 ms 9044 KB Output is correct
26 Correct 61 ms 13868 KB Output is correct
27 Correct 129 ms 30236 KB Output is correct
28 Correct 159 ms 38088 KB Output is correct
29 Correct 212 ms 45948 KB Output is correct
30 Correct 238 ms 52556 KB Output is correct
31 Correct 283 ms 60656 KB Output is correct
32 Correct 285 ms 70696 KB Output is correct
33 Correct 331 ms 82256 KB Output is correct
34 Correct 3 ms 1368 KB Output is correct
35 Correct 5 ms 1880 KB Output is correct
36 Correct 125 ms 30836 KB Output is correct
37 Correct 201 ms 47320 KB Output is correct
38 Correct 298 ms 62544 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 412 KB Output is correct
9 Correct 150 ms 43452 KB Output is correct
10 Correct 10 ms 4956 KB Output is correct
11 Correct 80 ms 23900 KB Output is correct
12 Correct 17 ms 7256 KB Output is correct
13 Correct 45 ms 13908 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 1 ms 600 KB Output is correct
16 Correct 144 ms 38304 KB Output is correct
17 Correct 0 ms 344 KB Output is correct
18 Incorrect 0 ms 348 KB Tree @(3, 5) appears more than once: for edges on positions 0 and 2
19 Halted 0 ms 0 KB -