#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> x, std::vector<int> y) {
const int n = (int)x.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({x[i], y[i]}), id[{x[i], y[i]}] = i;
queue<pair<pair<int,int>, int>>st;
st.push({{x[0], y[0]}, 0});
s.erase(s.find({x[0], y[0]}));
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&1});
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-2,y}))
process(x-2, y, 2);
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);
if(s.count({x-2, y}))
process(x-2, y, 2);
}
} else {
if(s.count({x+2, y})) {
process(x+2, y, 0);
if(s.count({x,y+2}))
process(x, y+2, 3);
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, 3);
if(s.count({x, y-2}))
process(x, y-2, 1);
}
}
}
if(cnt < n)
return 0;
build(u,v,a,b);
return 1;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
412 KB |
Output is correct |
2 |
Correct |
1 ms |
300 KB |
Output is correct |
3 |
Correct |
0 ms |
296 KB |
Output is correct |
4 |
Correct |
1 ms |
308 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 |
212 KB |
Output is correct |
9 |
Correct |
219 ms |
18488 KB |
Output is correct |
10 |
Correct |
12 ms |
2316 KB |
Output is correct |
11 |
Correct |
83 ms |
10140 KB |
Output is correct |
12 |
Correct |
22 ms |
3176 KB |
Output is correct |
13 |
Correct |
44 ms |
6932 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
2 ms |
468 KB |
Output is correct |
16 |
Correct |
211 ms |
18392 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
412 KB |
Output is correct |
2 |
Correct |
1 ms |
300 KB |
Output is correct |
3 |
Correct |
0 ms |
296 KB |
Output is correct |
4 |
Correct |
1 ms |
308 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 |
212 KB |
Output is correct |
9 |
Correct |
219 ms |
18488 KB |
Output is correct |
10 |
Correct |
12 ms |
2316 KB |
Output is correct |
11 |
Correct |
83 ms |
10140 KB |
Output is correct |
12 |
Correct |
22 ms |
3176 KB |
Output is correct |
13 |
Correct |
44 ms |
6932 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
2 ms |
468 KB |
Output is correct |
16 |
Correct |
211 ms |
18392 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 |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
1 ms |
212 KB |
Output is correct |
23 |
Correct |
478 ms |
36112 KB |
Output is correct |
24 |
Correct |
1 ms |
212 KB |
Output is correct |
25 |
Correct |
2 ms |
468 KB |
Output is correct |
26 |
Correct |
3 ms |
724 KB |
Output is correct |
27 |
Correct |
3 ms |
752 KB |
Output is correct |
28 |
Correct |
156 ms |
14860 KB |
Output is correct |
29 |
Correct |
306 ms |
22060 KB |
Output is correct |
30 |
Correct |
360 ms |
29320 KB |
Output is correct |
31 |
Correct |
479 ms |
36296 KB |
Output is correct |
32 |
Correct |
1 ms |
212 KB |
Output is correct |
33 |
Correct |
1 ms |
212 KB |
Output is correct |
34 |
Correct |
1 ms |
252 KB |
Output is correct |
35 |
Correct |
1 ms |
212 KB |
Output is correct |
36 |
Correct |
1 ms |
212 KB |
Output is correct |
37 |
Correct |
1 ms |
212 KB |
Output is correct |
38 |
Correct |
1 ms |
212 KB |
Output is correct |
39 |
Correct |
1 ms |
212 KB |
Output is correct |
40 |
Correct |
1 ms |
296 KB |
Output is correct |
41 |
Correct |
1 ms |
212 KB |
Output is correct |
42 |
Correct |
0 ms |
212 KB |
Output is correct |
43 |
Correct |
2 ms |
468 KB |
Output is correct |
44 |
Correct |
3 ms |
692 KB |
Output is correct |
45 |
Correct |
228 ms |
18520 KB |
Output is correct |
46 |
Correct |
337 ms |
26616 KB |
Output is correct |
47 |
Correct |
337 ms |
26600 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
412 KB |
Output is correct |
2 |
Correct |
1 ms |
300 KB |
Output is correct |
3 |
Correct |
0 ms |
296 KB |
Output is correct |
4 |
Correct |
1 ms |
308 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 |
212 KB |
Output is correct |
9 |
Correct |
219 ms |
18488 KB |
Output is correct |
10 |
Correct |
12 ms |
2316 KB |
Output is correct |
11 |
Correct |
83 ms |
10140 KB |
Output is correct |
12 |
Correct |
22 ms |
3176 KB |
Output is correct |
13 |
Correct |
44 ms |
6932 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
2 ms |
468 KB |
Output is correct |
16 |
Correct |
211 ms |
18392 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 |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
1 ms |
212 KB |
Output is correct |
23 |
Correct |
478 ms |
36112 KB |
Output is correct |
24 |
Correct |
1 ms |
212 KB |
Output is correct |
25 |
Correct |
2 ms |
468 KB |
Output is correct |
26 |
Correct |
3 ms |
724 KB |
Output is correct |
27 |
Correct |
3 ms |
752 KB |
Output is correct |
28 |
Correct |
156 ms |
14860 KB |
Output is correct |
29 |
Correct |
306 ms |
22060 KB |
Output is correct |
30 |
Correct |
360 ms |
29320 KB |
Output is correct |
31 |
Correct |
479 ms |
36296 KB |
Output is correct |
32 |
Correct |
1 ms |
212 KB |
Output is correct |
33 |
Correct |
1 ms |
212 KB |
Output is correct |
34 |
Correct |
1 ms |
252 KB |
Output is correct |
35 |
Correct |
1 ms |
212 KB |
Output is correct |
36 |
Correct |
1 ms |
212 KB |
Output is correct |
37 |
Correct |
1 ms |
212 KB |
Output is correct |
38 |
Correct |
1 ms |
212 KB |
Output is correct |
39 |
Correct |
1 ms |
212 KB |
Output is correct |
40 |
Correct |
1 ms |
296 KB |
Output is correct |
41 |
Correct |
1 ms |
212 KB |
Output is correct |
42 |
Correct |
0 ms |
212 KB |
Output is correct |
43 |
Correct |
2 ms |
468 KB |
Output is correct |
44 |
Correct |
3 ms |
692 KB |
Output is correct |
45 |
Correct |
228 ms |
18520 KB |
Output is correct |
46 |
Correct |
337 ms |
26616 KB |
Output is correct |
47 |
Correct |
337 ms |
26600 KB |
Output is correct |
48 |
Correct |
1 ms |
212 KB |
Output is correct |
49 |
Correct |
1 ms |
212 KB |
Output is correct |
50 |
Correct |
1 ms |
212 KB |
Output is correct |
51 |
Correct |
1 ms |
300 KB |
Output is correct |
52 |
Correct |
1 ms |
340 KB |
Output is correct |
53 |
Correct |
1 ms |
212 KB |
Output is correct |
54 |
Correct |
1 ms |
300 KB |
Output is correct |
55 |
Incorrect |
517 ms |
36344 KB |
Tree @(3, 95051) appears more than once: for edges on positions 8 and 9 |
56 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
412 KB |
Output is correct |
2 |
Correct |
1 ms |
300 KB |
Output is correct |
3 |
Correct |
0 ms |
296 KB |
Output is correct |
4 |
Correct |
1 ms |
308 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 |
212 KB |
Output is correct |
9 |
Correct |
219 ms |
18488 KB |
Output is correct |
10 |
Correct |
12 ms |
2316 KB |
Output is correct |
11 |
Correct |
83 ms |
10140 KB |
Output is correct |
12 |
Correct |
22 ms |
3176 KB |
Output is correct |
13 |
Correct |
44 ms |
6932 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
2 ms |
468 KB |
Output is correct |
16 |
Correct |
211 ms |
18392 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 |
438 ms |
36584 KB |
Output is correct |
21 |
Correct |
496 ms |
36244 KB |
Output is correct |
22 |
Correct |
501 ms |
36424 KB |
Output is correct |
23 |
Correct |
405 ms |
31060 KB |
Output is correct |
24 |
Correct |
270 ms |
26484 KB |
Output is correct |
25 |
Correct |
267 ms |
26484 KB |
Output is correct |
26 |
Correct |
272 ms |
26444 KB |
Output is correct |
27 |
Correct |
662 ms |
36072 KB |
Output is correct |
28 |
Correct |
675 ms |
36016 KB |
Output is correct |
29 |
Correct |
738 ms |
35964 KB |
Output is correct |
30 |
Correct |
731 ms |
35956 KB |
Output is correct |
31 |
Correct |
1 ms |
212 KB |
Output is correct |
32 |
Incorrect |
29 ms |
3256 KB |
Tree @(185789, 20625) appears more than once: for edges on positions 4 and 5 |
33 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
412 KB |
Output is correct |
2 |
Correct |
1 ms |
300 KB |
Output is correct |
3 |
Correct |
0 ms |
296 KB |
Output is correct |
4 |
Correct |
1 ms |
308 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 |
212 KB |
Output is correct |
9 |
Correct |
219 ms |
18488 KB |
Output is correct |
10 |
Correct |
12 ms |
2316 KB |
Output is correct |
11 |
Correct |
83 ms |
10140 KB |
Output is correct |
12 |
Correct |
22 ms |
3176 KB |
Output is correct |
13 |
Correct |
44 ms |
6932 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
2 ms |
468 KB |
Output is correct |
16 |
Correct |
211 ms |
18392 KB |
Output is correct |
17 |
Correct |
504 ms |
36104 KB |
Output is correct |
18 |
Correct |
512 ms |
36180 KB |
Output is correct |
19 |
Correct |
520 ms |
36740 KB |
Output is correct |
20 |
Incorrect |
644 ms |
35488 KB |
Tree @(265, 883) appears more than once: for edges on positions 9 and 10 |
21 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
412 KB |
Output is correct |
2 |
Correct |
1 ms |
300 KB |
Output is correct |
3 |
Correct |
0 ms |
296 KB |
Output is correct |
4 |
Correct |
1 ms |
308 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 |
212 KB |
Output is correct |
9 |
Correct |
219 ms |
18488 KB |
Output is correct |
10 |
Correct |
12 ms |
2316 KB |
Output is correct |
11 |
Correct |
83 ms |
10140 KB |
Output is correct |
12 |
Correct |
22 ms |
3176 KB |
Output is correct |
13 |
Correct |
44 ms |
6932 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
2 ms |
468 KB |
Output is correct |
16 |
Correct |
211 ms |
18392 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 |
212 KB |
Output is correct |
21 |
Correct |
1 ms |
212 KB |
Output is correct |
22 |
Correct |
1 ms |
212 KB |
Output is correct |
23 |
Correct |
478 ms |
36112 KB |
Output is correct |
24 |
Correct |
1 ms |
212 KB |
Output is correct |
25 |
Correct |
2 ms |
468 KB |
Output is correct |
26 |
Correct |
3 ms |
724 KB |
Output is correct |
27 |
Correct |
3 ms |
752 KB |
Output is correct |
28 |
Correct |
156 ms |
14860 KB |
Output is correct |
29 |
Correct |
306 ms |
22060 KB |
Output is correct |
30 |
Correct |
360 ms |
29320 KB |
Output is correct |
31 |
Correct |
479 ms |
36296 KB |
Output is correct |
32 |
Correct |
1 ms |
212 KB |
Output is correct |
33 |
Correct |
1 ms |
212 KB |
Output is correct |
34 |
Correct |
1 ms |
252 KB |
Output is correct |
35 |
Correct |
1 ms |
212 KB |
Output is correct |
36 |
Correct |
1 ms |
212 KB |
Output is correct |
37 |
Correct |
1 ms |
212 KB |
Output is correct |
38 |
Correct |
1 ms |
212 KB |
Output is correct |
39 |
Correct |
1 ms |
212 KB |
Output is correct |
40 |
Correct |
1 ms |
296 KB |
Output is correct |
41 |
Correct |
1 ms |
212 KB |
Output is correct |
42 |
Correct |
0 ms |
212 KB |
Output is correct |
43 |
Correct |
2 ms |
468 KB |
Output is correct |
44 |
Correct |
3 ms |
692 KB |
Output is correct |
45 |
Correct |
228 ms |
18520 KB |
Output is correct |
46 |
Correct |
337 ms |
26616 KB |
Output is correct |
47 |
Correct |
337 ms |
26600 KB |
Output is correct |
48 |
Correct |
1 ms |
212 KB |
Output is correct |
49 |
Correct |
1 ms |
212 KB |
Output is correct |
50 |
Correct |
1 ms |
212 KB |
Output is correct |
51 |
Correct |
1 ms |
300 KB |
Output is correct |
52 |
Correct |
1 ms |
340 KB |
Output is correct |
53 |
Correct |
1 ms |
212 KB |
Output is correct |
54 |
Correct |
1 ms |
300 KB |
Output is correct |
55 |
Incorrect |
517 ms |
36344 KB |
Tree @(3, 95051) appears more than once: for edges on positions 8 and 9 |
56 |
Halted |
0 ms |
0 KB |
- |