Submission #401665

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
401665	2021-05-10T16:22:34 Z	hoaphat1	Swapping Cities (APIO20_swap)	C++17	37 / 100	2000 ms	14444 KB

swap

#include<bits/stdc++.h>
 
using namespace std;

struct dsu {
	vector<int> p;
	int n;
	dsu(int n) {
		resize(n);
	}
	dsu() {
	}
	void resize(int _n) {
		n = _n;
		p = vector<int> (n, -1);
	}
	int get(int x) {
		return p[x] < 0 ? x : p[x] = get(p[x]);
	}
	bool unite(int x, int y) {
		x = get(x); y = get(y);
		if (x != y) {
			if (p[x] < p[y]) swap(x, y);
			p[y] += p[x];
			p[x] = y;
			return true;
		}
		return false;
	}
} d;

const int N = 1e5 + 3;
int n, m;
vector<tuple<int,int,int>> edges;
int deg[N];
vector<int> event[N];
bool can[N];

void init(int _n, int _m, vector<int> u, vector<int> v, vector<int> w) {
	n = _n;
	m = _m;
	for (int i = 0; i < m; i++) edges.emplace_back(w[i], u[i], v[i]);
	sort(edges.begin(), edges.end());
	/*d.resize(n);
	for (auto&x : edges) {
		deg[get<1>(x)]++;
		deg[get<2>(x)]++;
		int u = d.get(get<1>(x)), v = d.get(get<2>(x));
		if (u == v) {
			if (!can[u]) {
				event[u].emplace_back(get<0>(x));
				can[u] = true;
			}
		}
		else {
			d.unite(u, v);
			if (u != d.get(u)) swap(u, v);
			
		}
	}*/
}

int getMinimumFuelCapacity(int X, int Y) {
	d.resize(n);
	for (int i = 0; i < n; i++) deg[i] = 0, can[i] = false;
	for (auto&x : edges) {
		++deg[get<1>(x)];
		++deg[get<2>(x)];
		int u = d.get(get<1>(x)), v = d.get(get<2>(x));
		if (u == v) {
			can[u] = true;
		}
		else {
			d.unite(u, v);
			if (u != d.get(u)) swap(u, v);
			can[u] |= can[v];
			if (deg[get<1>(x)] >= 3 || deg[get<2>(x)] >= 3) {
				can[u] = true;
			}
		}
		if (d.get(X) == d.get(Y) && can[d.get(X)]) return get<0>(x);
	}
	return -1;
}

Subtask #1
0 / 6.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	2636 KB	Output is correct
2	Correct	2 ms	2636 KB	Output is correct
3	Correct	2 ms	2636 KB	Output is correct
4	Correct	3 ms	2636 KB	Output is correct
5	Correct	3 ms	2636 KB	Output is correct
6	Correct	3 ms	2636 KB	Output is correct
7	Correct	3 ms	2636 KB	Output is correct
8	Correct	3 ms	2584 KB	Output is correct
9	Correct	54 ms	6128 KB	Output is correct
10	Correct	61 ms	6460 KB	Output is correct
11	Correct	78 ms	6452 KB	Output is correct
12	Correct	78 ms	6636 KB	Output is correct
13	Correct	61 ms	6640 KB	Output is correct
14	Execution timed out	2070 ms	6256 KB	Time limit exceeded
15	Halted	0 ms	0 KB	-

Subtask #2
0 / 7.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	2636 KB	Output is correct
2	Correct	2 ms	2636 KB	Output is correct
3	Execution timed out	2085 ms	8272 KB	Time limit exceeded
4	Halted	0 ms	0 KB	-

Subtask #3
17.0 / 17.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	2636 KB	Output is correct
2	Correct	2 ms	2636 KB	Output is correct
3	Correct	2 ms	2636 KB	Output is correct
4	Correct	3 ms	2636 KB	Output is correct
5	Correct	3 ms	2636 KB	Output is correct
6	Correct	3 ms	2636 KB	Output is correct
7	Correct	3 ms	2636 KB	Output is correct
8	Correct	3 ms	2584 KB	Output is correct
9	Correct	3 ms	2636 KB	Output is correct
10	Correct	3 ms	2636 KB	Output is correct
11	Correct	3 ms	2636 KB	Output is correct
12	Correct	3 ms	2636 KB	Output is correct
13	Correct	3 ms	2660 KB	Output is correct
14	Correct	3 ms	2636 KB	Output is correct
15	Correct	3 ms	2636 KB	Output is correct
16	Correct	3 ms	2692 KB	Output is correct
17	Correct	3 ms	2636 KB	Output is correct
18	Correct	3 ms	2664 KB	Output is correct
19	Correct	3 ms	2672 KB	Output is correct
20	Correct	3 ms	2668 KB	Output is correct
21	Correct	3 ms	2636 KB	Output is correct
22	Correct	3 ms	2672 KB	Output is correct
23	Correct	3 ms	2636 KB	Output is correct
24	Correct	3 ms	2764 KB	Output is correct
25	Correct	3 ms	2764 KB	Output is correct
26	Correct	3 ms	2708 KB	Output is correct
27	Correct	3 ms	2636 KB	Output is correct
28	Correct	3 ms	2672 KB	Output is correct

Subtask #4
20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	2636 KB	Output is correct
2	Correct	2 ms	2636 KB	Output is correct
3	Correct	2 ms	2636 KB	Output is correct
4	Correct	2 ms	2636 KB	Output is correct
5	Correct	3 ms	2636 KB	Output is correct
6	Correct	3 ms	2636 KB	Output is correct
7	Correct	3 ms	2636 KB	Output is correct
8	Correct	3 ms	2636 KB	Output is correct
9	Correct	3 ms	2584 KB	Output is correct
10	Correct	54 ms	6128 KB	Output is correct
11	Correct	61 ms	6460 KB	Output is correct
12	Correct	78 ms	6452 KB	Output is correct
13	Correct	78 ms	6636 KB	Output is correct
14	Correct	61 ms	6640 KB	Output is correct
15	Correct	3 ms	2636 KB	Output is correct
16	Correct	3 ms	2636 KB	Output is correct
17	Correct	3 ms	2636 KB	Output is correct
18	Correct	3 ms	2660 KB	Output is correct
19	Correct	3 ms	2636 KB	Output is correct
20	Correct	3 ms	2636 KB	Output is correct
21	Correct	3 ms	2692 KB	Output is correct
22	Correct	3 ms	2636 KB	Output is correct
23	Correct	3 ms	2664 KB	Output is correct
24	Correct	3 ms	2672 KB	Output is correct
25	Correct	3 ms	2668 KB	Output is correct
26	Correct	3 ms	2636 KB	Output is correct
27	Correct	3 ms	2672 KB	Output is correct
28	Correct	3 ms	2636 KB	Output is correct
29	Correct	3 ms	2764 KB	Output is correct
30	Correct	3 ms	2764 KB	Output is correct
31	Correct	3 ms	2708 KB	Output is correct
32	Correct	3 ms	2636 KB	Output is correct
33	Correct	3 ms	2672 KB	Output is correct
34	Correct	9 ms	3532 KB	Output is correct
35	Correct	70 ms	8408 KB	Output is correct
36	Correct	66 ms	8468 KB	Output is correct
37	Correct	66 ms	8400 KB	Output is correct
38	Correct	64 ms	8412 KB	Output is correct
39	Correct	64 ms	8388 KB	Output is correct
40	Correct	75 ms	7996 KB	Output is correct
41	Correct	74 ms	8744 KB	Output is correct
42	Correct	74 ms	8460 KB	Output is correct
43	Correct	57 ms	8420 KB	Output is correct
44	Correct	70 ms	8764 KB	Output is correct
45	Correct	89 ms	12412 KB	Output is correct
46	Correct	68 ms	8460 KB	Output is correct
47	Correct	66 ms	8508 KB	Output is correct
48	Correct	68 ms	8944 KB	Output is correct
49	Correct	79 ms	12244 KB	Output is correct
50	Correct	54 ms	9420 KB	Output is correct
51	Correct	77 ms	10032 KB	Output is correct
52	Correct	102 ms	13088 KB	Output is correct
53	Correct	101 ms	13752 KB	Output is correct
54	Correct	118 ms	14444 KB	Output is correct
55	Correct	57 ms	8420 KB	Output is correct
56	Correct	114 ms	13496 KB	Output is correct

Subtask #5
0 / 23.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	2636 KB	Output is correct
2	Correct	2 ms	2636 KB	Output is correct
3	Correct	2 ms	2636 KB	Output is correct
4	Correct	3 ms	2636 KB	Output is correct
5	Correct	3 ms	2636 KB	Output is correct
6	Correct	3 ms	2636 KB	Output is correct
7	Correct	3 ms	2636 KB	Output is correct
8	Correct	3 ms	2584 KB	Output is correct
9	Correct	54 ms	6128 KB	Output is correct
10	Correct	61 ms	6460 KB	Output is correct
11	Correct	78 ms	6452 KB	Output is correct
12	Correct	78 ms	6636 KB	Output is correct
13	Correct	61 ms	6640 KB	Output is correct
14	Execution timed out	2070 ms	6256 KB	Time limit exceeded
15	Halted	0 ms	0 KB	-

Subtask #6
0 / 27.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	3 ms	2636 KB	Output is correct
2	Correct	2 ms	2636 KB	Output is correct
3	Correct	2 ms	2636 KB	Output is correct
4	Correct	2 ms	2636 KB	Output is correct
5	Correct	3 ms	2636 KB	Output is correct
6	Correct	3 ms	2636 KB	Output is correct
7	Correct	3 ms	2636 KB	Output is correct
8	Correct	3 ms	2636 KB	Output is correct
9	Correct	3 ms	2584 KB	Output is correct
10	Correct	54 ms	6128 KB	Output is correct
11	Correct	61 ms	6460 KB	Output is correct
12	Correct	78 ms	6452 KB	Output is correct
13	Correct	78 ms	6636 KB	Output is correct
14	Correct	61 ms	6640 KB	Output is correct
15	Execution timed out	2070 ms	6256 KB	Time limit exceeded
16	Halted	0 ms	0 KB	-

Submission #401665

Compilation message

Subtask #1 0 / 6.0

Subtask #2 0 / 7.0

Subtask #3 17.0 / 17.0

Subtask #4 20.0 / 20.0

Subtask #5 0 / 23.0

Subtask #6 0 / 27.0

Subtask #1
0 / 6.0

Subtask #2
0 / 7.0

Subtask #3
17.0 / 17.0

Subtask #4
20.0 / 20.0

Subtask #5
0 / 23.0

Subtask #6
0 / 27.0