oj.uz

Submission #1052905

# Submission time Handle Problem Language Result Execution time Memory
1052905 2024-08-11T05:50:40 Z ReLice Fountain Parks (IOI21_parks) C++17
55 / 100
 406 ms 86768 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] = {-2, 2, 0, 0}, yd[4] = {0, 0, -2, 2};
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){
	//~ vis.ins({x, y});
	c++;
	for(ll i=3;i>=0;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);
		
		vis.ins({aa, 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((ll)u.size() < n - 1) return 0;
	
	build(u, v, a, b);
	
	return 1;
}

Subtask #1
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 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 348 KB Output is correct
9 Correct 158 ms 42620 KB Output is correct
10 Correct 11 ms 4956 KB Output is correct
11 Correct 78 ms 23636 KB Output is correct
12 Correct 18 ms 7004 KB Output is correct
13 Correct 42 ms 13520 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 164 ms 37500 KB Output is correct

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 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 348 KB Output is correct
9 Correct 158 ms 42620 KB Output is correct
10 Correct 11 ms 4956 KB Output is correct
11 Correct 78 ms 23636 KB Output is correct
12 Correct 18 ms 7004 KB Output is correct
13 Correct 42 ms 13520 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 164 ms 37500 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 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 356 ms 60284 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 2 ms 860 KB Output is correct
27 Correct 1 ms 860 KB Output is correct
28 Correct 117 ms 24920 KB Output is correct
29 Correct 180 ms 35360 KB Output is correct
30 Correct 257 ms 48720 KB Output is correct
31 Correct 395 ms 59216 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 2 ms 604 KB Output is correct
44 Correct 1 ms 604 KB Output is correct
45 Correct 146 ms 34940 KB Output is correct
46 Correct 220 ms 51276 KB Output is correct
47 Correct 233 ms 50504 KB Output is correct

Subtask #3
0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 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 348 KB Output is correct
9 Correct 158 ms 42620 KB Output is correct
10 Correct 11 ms 4956 KB Output is correct
11 Correct 78 ms 23636 KB Output is correct
12 Correct 18 ms 7004 KB Output is correct
13 Correct 42 ms 13520 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 164 ms 37500 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 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 356 ms 60284 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 2 ms 860 KB Output is correct
27 Correct 1 ms 860 KB Output is correct
28 Correct 117 ms 24920 KB Output is correct
29 Correct 180 ms 35360 KB Output is correct
30 Correct 257 ms 48720 KB Output is correct
31 Correct 395 ms 59216 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 2 ms 604 KB Output is correct
44 Correct 1 ms 604 KB Output is correct
45 Correct 146 ms 34940 KB Output is correct
46 Correct 220 ms 51276 KB Output is correct
47 Correct 233 ms 50504 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 0 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Incorrect 334 ms 61592 KB Given structure is not connected: There is no path between vertices 0 and 10
56 Halted 0 ms 0 KB -

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 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 348 KB Output is correct
9 Correct 158 ms 42620 KB Output is correct
10 Correct 11 ms 4956 KB Output is correct
11 Correct 78 ms 23636 KB Output is correct
12 Correct 18 ms 7004 KB Output is correct
13 Correct 42 ms 13520 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 164 ms 37500 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 322 ms 74104 KB Output is correct
21 Correct 303 ms 69100 KB Output is correct
22 Correct 310 ms 66284 KB Output is correct
23 Correct 272 ms 66256 KB Output is correct
24 Correct 74 ms 18384 KB Output is correct
25 Correct 78 ms 18384 KB Output is correct
26 Correct 78 ms 18384 KB Output is correct
27 Correct 262 ms 49480 KB Output is correct
28 Correct 263 ms 49236 KB Output is correct
29 Correct 366 ms 49480 KB Output is correct
30 Correct 354 ms 49232 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 18 ms 4992 KB Output is correct
33 Correct 34 ms 9160 KB Output is correct
34 Correct 288 ms 70016 KB Output is correct
35 Correct 6 ms 1884 KB Output is correct
36 Correct 23 ms 5728 KB Output is correct
37 Correct 44 ms 9972 KB Output is correct
38 Correct 114 ms 18688 KB Output is correct
39 Correct 145 ms 25172 KB Output is correct
40 Correct 193 ms 32620 KB Output is correct
41 Correct 259 ms 39072 KB Output is correct
42 Correct 286 ms 45552 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 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 1 ms 348 KB Output is correct
50 Correct 0 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 1 ms 604 KB Output is correct
55 Correct 1 ms 604 KB Output is correct
56 Correct 174 ms 34752 KB Output is correct
57 Correct 229 ms 51408 KB Output is correct
58 Correct 227 ms 50560 KB Output is correct
59 Correct 0 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 352 ms 73168 KB Output is correct
63 Correct 351 ms 73688 KB Output is correct
64 Correct 349 ms 76004 KB Output is correct
65 Correct 3 ms 1116 KB Output is correct
66 Correct 3 ms 1372 KB Output is correct
67 Correct 145 ms 29764 KB Output is correct
68 Correct 239 ms 47936 KB Output is correct
69 Correct 324 ms 59728 KB Output is correct

Subtask #5
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 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 348 KB Output is correct
9 Correct 158 ms 42620 KB Output is correct
10 Correct 11 ms 4956 KB Output is correct
11 Correct 78 ms 23636 KB Output is correct
12 Correct 18 ms 7004 KB Output is correct
13 Correct 42 ms 13520 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 164 ms 37500 KB Output is correct
17 Correct 360 ms 86764 KB Output is correct
18 Correct 330 ms 86768 KB Output is correct
19 Correct 326 ms 74368 KB Output is correct
20 Correct 406 ms 62548 KB Output is correct
21 Correct 342 ms 61256 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 41 ms 9128 KB Output is correct
24 Correct 15 ms 3932 KB Output is correct
25 Correct 35 ms 8144 KB Output is correct
26 Correct 57 ms 12644 KB Output is correct
27 Correct 159 ms 30128 KB Output is correct
28 Correct 225 ms 37564 KB Output is correct
29 Correct 250 ms 45228 KB Output is correct
30 Correct 312 ms 52000 KB Output is correct
31 Correct 350 ms 60040 KB Output is correct
32 Correct 388 ms 72784 KB Output is correct
33 Correct 354 ms 80404 KB Output is correct
34 Correct 3 ms 1368 KB Output is correct
35 Correct 5 ms 1884 KB Output is correct
36 Correct 149 ms 30988 KB Output is correct
37 Correct 255 ms 47256 KB Output is correct
38 Correct 335 ms 62800 KB Output is correct

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 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 348 KB Output is correct
9 Correct 158 ms 42620 KB Output is correct
10 Correct 11 ms 4956 KB Output is correct
11 Correct 78 ms 23636 KB Output is correct
12 Correct 18 ms 7004 KB Output is correct
13 Correct 42 ms 13520 KB Output is correct
14 Correct 1 ms 604 KB Output is correct
15 Correct 1 ms 604 KB Output is correct
16 Correct 164 ms 37500 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 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 356 ms 60284 KB Output is correct
24 Correct 0 ms 344 KB Output is correct
25 Correct 1 ms 604 KB Output is correct
26 Correct 2 ms 860 KB Output is correct
27 Correct 1 ms 860 KB Output is correct
28 Correct 117 ms 24920 KB Output is correct
29 Correct 180 ms 35360 KB Output is correct
30 Correct 257 ms 48720 KB Output is correct
31 Correct 395 ms 59216 KB Output is correct
32 Correct 1 ms 344 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 348 KB Output is correct
35 Correct 0 ms 348 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 2 ms 604 KB Output is correct
44 Correct 1 ms 604 KB Output is correct
45 Correct 146 ms 34940 KB Output is correct
46 Correct 220 ms 51276 KB Output is correct
47 Correct 233 ms 50504 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 0 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Incorrect 334 ms 61592 KB Given structure is not connected: There is no path between vertices 0 and 10
56 Halted 0 ms 0 KB -