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Submission #292122

# Submission time Handle Problem Language Result Execution time Memory
292122 2020-09-06T11:53:04 Z srvlt Swapping Cities (APIO20_swap) C++14
100 / 100
 428 ms 36872 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define ld long double
#define pb push_back
#define all(x) begin(x), end(x)
#define SZ(x) (int)(x).size()
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
#include "swap.h"

const int n0 = 2e5 + 123;
int n, m, ans[n0], deg[n0], inf;
vector <array <int, 3>> e;
vector <int> dsu[n0];
vector <array <int, 2>> p[n0];

void init(int N, int M,
          std::vector<int> U, std::vector<int> V, std::vector<int> W) {
	n = N, m = M;
	for (int i = 0; i < m; i++)
		e.pb({W[i], U[i], V[i]});
	sort(all(e));
	memset(& ans, 0x3f, sizeof(ans));
	inf = ans[0];
	for (int i = 0; i < n; i++)
		p[i].pb({0, i}), dsu[i].pb(i);
	for (auto i : e) {
		int w = i[0], u = i[1], v = i[2];
		int vc = p[v].back()[1], uc = p[u].back()[1];
		if (vc == uc)
			ans[vc] = min(ans[vc], w);
		else {
			if (SZ(dsu[vc]) < SZ(dsu[uc])) {
				swap(vc, uc);
				swap(v, u);
			}
			deg[v]++, deg[u]++;
			ans[vc] = min(ans[vc], max(w, ans[uc]));
			if (deg[v] > 2 || deg[u] > 2)
				ans[vc] = min(ans[vc], w);
			for (int x : dsu[uc]) {
				dsu[vc].pb(x);
				p[x].pb({w, vc});
			}
		}
	}
}

int getMinimumFuelCapacity(int x, int y) {
	int i = SZ(p[x]) - 1, j = SZ(p[y]) - 1, mt = inf;
	while (i >= 0 && j >= 0 && p[x][i][1] == p[y][j][1]) {
		mt = min(mt, max({ans[p[x][i][1]], p[x][i][0], p[y][j][0]}));
		i--, j--;
	}
	return (mt == inf) ? -1 : mt;
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 10496 KB Output is correct
2 Correct 7 ms 10496 KB Output is correct
3 Correct 7 ms 10496 KB Output is correct
4 Correct 7 ms 10624 KB Output is correct
5 Correct 9 ms 10656 KB Output is correct
6 Correct 8 ms 10624 KB Output is correct
7 Correct 7 ms 10624 KB Output is correct
8 Correct 8 ms 10624 KB Output is correct
9 Correct 170 ms 26916 KB Output is correct
10 Correct 215 ms 30188 KB Output is correct
11 Correct 211 ms 29840 KB Output is correct
12 Correct 226 ms 31044 KB Output is correct
13 Correct 142 ms 23660 KB Output is correct
14 Correct 175 ms 26860 KB Output is correct
15 Correct 316 ms 32376 KB Output is correct
16 Correct 309 ms 31900 KB Output is correct
17 Correct 330 ms 33272 KB Output is correct
18 Correct 232 ms 25552 KB Output is correct
19 Correct 95 ms 17080 KB Output is correct
20 Correct 313 ms 33644 KB Output is correct
21 Correct 315 ms 33332 KB Output is correct
22 Correct 334 ms 34384 KB Output is correct
23 Correct 239 ms 26836 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 10496 KB Output is correct
2 Correct 7 ms 10496 KB Output is correct
3 Correct 208 ms 24080 KB Output is correct
4 Correct 209 ms 24532 KB Output is correct
5 Correct 207 ms 24448 KB Output is correct
6 Correct 203 ms 24404 KB Output is correct
7 Correct 212 ms 24484 KB Output is correct
8 Correct 198 ms 24200 KB Output is correct
9 Correct 204 ms 24296 KB Output is correct
10 Correct 200 ms 24104 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 10496 KB Output is correct
2 Correct 7 ms 10496 KB Output is correct
3 Correct 7 ms 10496 KB Output is correct
4 Correct 7 ms 10496 KB Output is correct
5 Correct 7 ms 10624 KB Output is correct
6 Correct 9 ms 10656 KB Output is correct
7 Correct 8 ms 10624 KB Output is correct
8 Correct 7 ms 10624 KB Output is correct
9 Correct 8 ms 10624 KB Output is correct
10 Correct 7 ms 10624 KB Output is correct
11 Correct 9 ms 10624 KB Output is correct
12 Correct 8 ms 10624 KB Output is correct
13 Correct 7 ms 10624 KB Output is correct
14 Correct 8 ms 10624 KB Output is correct
15 Correct 8 ms 10624 KB Output is correct
16 Correct 7 ms 10624 KB Output is correct
17 Correct 8 ms 10624 KB Output is correct
18 Correct 8 ms 10624 KB Output is correct
19 Correct 8 ms 10624 KB Output is correct
20 Correct 9 ms 10624 KB Output is correct
21 Correct 7 ms 10624 KB Output is correct
22 Correct 8 ms 10624 KB Output is correct
23 Correct 7 ms 10624 KB Output is correct
24 Correct 8 ms 10752 KB Output is correct
25 Correct 8 ms 10624 KB Output is correct
26 Correct 8 ms 10752 KB Output is correct
27 Correct 7 ms 10624 KB Output is correct
28 Correct 8 ms 10624 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 10496 KB Output is correct
2 Correct 7 ms 10496 KB Output is correct
3 Correct 7 ms 10496 KB Output is correct
4 Correct 7 ms 10496 KB Output is correct
5 Correct 7 ms 10624 KB Output is correct
6 Correct 9 ms 10656 KB Output is correct
7 Correct 8 ms 10624 KB Output is correct
8 Correct 7 ms 10624 KB Output is correct
9 Correct 8 ms 10624 KB Output is correct
10 Correct 170 ms 26916 KB Output is correct
11 Correct 215 ms 30188 KB Output is correct
12 Correct 211 ms 29840 KB Output is correct
13 Correct 226 ms 31044 KB Output is correct
14 Correct 142 ms 23660 KB Output is correct
15 Correct 7 ms 10624 KB Output is correct
16 Correct 9 ms 10624 KB Output is correct
17 Correct 8 ms 10624 KB Output is correct
18 Correct 7 ms 10624 KB Output is correct
19 Correct 8 ms 10624 KB Output is correct
20 Correct 8 ms 10624 KB Output is correct
21 Correct 7 ms 10624 KB Output is correct
22 Correct 8 ms 10624 KB Output is correct
23 Correct 8 ms 10624 KB Output is correct
24 Correct 22 ms 12864 KB Output is correct
25 Correct 236 ms 30828 KB Output is correct
26 Correct 226 ms 30828 KB Output is correct
27 Correct 219 ms 30188 KB Output is correct
28 Correct 219 ms 29292 KB Output is correct
29 Correct 213 ms 29124 KB Output is correct
30 Correct 178 ms 27244 KB Output is correct
31 Correct 239 ms 31340 KB Output is correct
32 Correct 232 ms 31468 KB Output is correct
33 Correct 127 ms 22860 KB Output is correct
34 Correct 208 ms 28652 KB Output is correct
35 Correct 8 ms 10624 KB Output is correct
36 Correct 9 ms 10624 KB Output is correct
37 Correct 7 ms 10624 KB Output is correct
38 Correct 8 ms 10624 KB Output is correct
39 Correct 7 ms 10624 KB Output is correct
40 Correct 8 ms 10752 KB Output is correct
41 Correct 8 ms 10624 KB Output is correct
42 Correct 8 ms 10752 KB Output is correct
43 Correct 7 ms 10624 KB Output is correct
44 Correct 8 ms 10624 KB Output is correct
45 Correct 176 ms 23916 KB Output is correct
46 Correct 221 ms 30700 KB Output is correct
47 Correct 196 ms 27116 KB Output is correct
48 Correct 168 ms 24300 KB Output is correct
49 Correct 95 ms 16656 KB Output is correct
50 Correct 86 ms 15548 KB Output is correct
51 Correct 140 ms 21484 KB Output is correct
52 Correct 267 ms 32000 KB Output is correct
53 Correct 249 ms 27748 KB Output is correct
54 Correct 313 ms 34788 KB Output is correct
55 Correct 134 ms 23148 KB Output is correct
56 Correct 224 ms 26856 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 7 ms 10496 KB Output is correct
2 Correct 7 ms 10496 KB Output is correct
3 Correct 7 ms 10496 KB Output is correct
4 Correct 7 ms 10624 KB Output is correct
5 Correct 9 ms 10656 KB Output is correct
6 Correct 8 ms 10624 KB Output is correct
7 Correct 7 ms 10624 KB Output is correct
8 Correct 8 ms 10624 KB Output is correct
9 Correct 170 ms 26916 KB Output is correct
10 Correct 215 ms 30188 KB Output is correct
11 Correct 211 ms 29840 KB Output is correct
12 Correct 226 ms 31044 KB Output is correct
13 Correct 142 ms 23660 KB Output is correct
14 Correct 175 ms 26860 KB Output is correct
15 Correct 316 ms 32376 KB Output is correct
16 Correct 309 ms 31900 KB Output is correct
17 Correct 330 ms 33272 KB Output is correct
18 Correct 232 ms 25552 KB Output is correct
19 Correct 208 ms 24080 KB Output is correct
20 Correct 209 ms 24532 KB Output is correct
21 Correct 207 ms 24448 KB Output is correct
22 Correct 203 ms 24404 KB Output is correct
23 Correct 212 ms 24484 KB Output is correct
24 Correct 198 ms 24200 KB Output is correct
25 Correct 204 ms 24296 KB Output is correct
26 Correct 200 ms 24104 KB Output is correct
27 Correct 7 ms 10624 KB Output is correct
28 Correct 9 ms 10624 KB Output is correct
29 Correct 8 ms 10624 KB Output is correct
30 Correct 7 ms 10624 KB Output is correct
31 Correct 8 ms 10624 KB Output is correct
32 Correct 8 ms 10624 KB Output is correct
33 Correct 7 ms 10624 KB Output is correct
34 Correct 8 ms 10624 KB Output is correct
35 Correct 8 ms 10624 KB Output is correct
36 Correct 22 ms 12864 KB Output is correct
37 Correct 236 ms 30828 KB Output is correct
38 Correct 226 ms 30828 KB Output is correct
39 Correct 219 ms 30188 KB Output is correct
40 Correct 219 ms 29292 KB Output is correct
41 Correct 213 ms 29124 KB Output is correct
42 Correct 178 ms 27244 KB Output is correct
43 Correct 239 ms 31340 KB Output is correct
44 Correct 232 ms 31468 KB Output is correct
45 Correct 127 ms 22860 KB Output is correct
46 Correct 208 ms 28652 KB Output is correct
47 Correct 31 ms 13240 KB Output is correct
48 Correct 330 ms 33748 KB Output is correct
49 Correct 322 ms 33112 KB Output is correct
50 Correct 321 ms 32980 KB Output is correct
51 Correct 313 ms 32480 KB Output is correct
52 Correct 298 ms 30904 KB Output is correct
53 Correct 221 ms 26208 KB Output is correct
54 Correct 329 ms 34132 KB Output is correct
55 Correct 332 ms 34384 KB Output is correct
56 Correct 228 ms 26064 KB Output is correct
57 Correct 310 ms 31668 KB Output is correct

Subtask #6
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 10496 KB Output is correct
2 Correct 7 ms 10496 KB Output is correct
3 Correct 7 ms 10496 KB Output is correct
4 Correct 7 ms 10496 KB Output is correct
5 Correct 7 ms 10624 KB Output is correct
6 Correct 9 ms 10656 KB Output is correct
7 Correct 8 ms 10624 KB Output is correct
8 Correct 7 ms 10624 KB Output is correct
9 Correct 8 ms 10624 KB Output is correct
10 Correct 170 ms 26916 KB Output is correct
11 Correct 215 ms 30188 KB Output is correct
12 Correct 211 ms 29840 KB Output is correct
13 Correct 226 ms 31044 KB Output is correct
14 Correct 142 ms 23660 KB Output is correct
15 Correct 175 ms 26860 KB Output is correct
16 Correct 316 ms 32376 KB Output is correct
17 Correct 309 ms 31900 KB Output is correct
18 Correct 330 ms 33272 KB Output is correct
19 Correct 232 ms 25552 KB Output is correct
20 Correct 208 ms 24080 KB Output is correct
21 Correct 209 ms 24532 KB Output is correct
22 Correct 207 ms 24448 KB Output is correct
23 Correct 203 ms 24404 KB Output is correct
24 Correct 212 ms 24484 KB Output is correct
25 Correct 198 ms 24200 KB Output is correct
26 Correct 204 ms 24296 KB Output is correct
27 Correct 200 ms 24104 KB Output is correct
28 Correct 7 ms 10624 KB Output is correct
29 Correct 9 ms 10624 KB Output is correct
30 Correct 8 ms 10624 KB Output is correct
31 Correct 7 ms 10624 KB Output is correct
32 Correct 8 ms 10624 KB Output is correct
33 Correct 8 ms 10624 KB Output is correct
34 Correct 7 ms 10624 KB Output is correct
35 Correct 8 ms 10624 KB Output is correct
36 Correct 8 ms 10624 KB Output is correct
37 Correct 22 ms 12864 KB Output is correct
38 Correct 236 ms 30828 KB Output is correct
39 Correct 226 ms 30828 KB Output is correct
40 Correct 219 ms 30188 KB Output is correct
41 Correct 219 ms 29292 KB Output is correct
42 Correct 213 ms 29124 KB Output is correct
43 Correct 178 ms 27244 KB Output is correct
44 Correct 239 ms 31340 KB Output is correct
45 Correct 232 ms 31468 KB Output is correct
46 Correct 127 ms 22860 KB Output is correct
47 Correct 208 ms 28652 KB Output is correct
48 Correct 31 ms 13240 KB Output is correct
49 Correct 330 ms 33748 KB Output is correct
50 Correct 322 ms 33112 KB Output is correct
51 Correct 321 ms 32980 KB Output is correct
52 Correct 313 ms 32480 KB Output is correct
53 Correct 298 ms 30904 KB Output is correct
54 Correct 221 ms 26208 KB Output is correct
55 Correct 329 ms 34132 KB Output is correct
56 Correct 332 ms 34384 KB Output is correct
57 Correct 228 ms 26064 KB Output is correct
58 Correct 310 ms 31668 KB Output is correct
59 Correct 95 ms 17080 KB Output is correct
60 Correct 313 ms 33644 KB Output is correct
61 Correct 315 ms 33332 KB Output is correct
62 Correct 334 ms 34384 KB Output is correct
63 Correct 239 ms 26836 KB Output is correct
64 Correct 8 ms 10624 KB Output is correct
65 Correct 9 ms 10624 KB Output is correct
66 Correct 7 ms 10624 KB Output is correct
67 Correct 8 ms 10624 KB Output is correct
68 Correct 7 ms 10624 KB Output is correct
69 Correct 8 ms 10752 KB Output is correct
70 Correct 8 ms 10624 KB Output is correct
71 Correct 8 ms 10752 KB Output is correct
72 Correct 7 ms 10624 KB Output is correct
73 Correct 8 ms 10624 KB Output is correct
74 Correct 176 ms 23916 KB Output is correct
75 Correct 221 ms 30700 KB Output is correct
76 Correct 196 ms 27116 KB Output is correct
77 Correct 168 ms 24300 KB Output is correct
78 Correct 95 ms 16656 KB Output is correct
79 Correct 86 ms 15548 KB Output is correct
80 Correct 140 ms 21484 KB Output is correct
81 Correct 267 ms 32000 KB Output is correct
82 Correct 249 ms 27748 KB Output is correct
83 Correct 313 ms 34788 KB Output is correct
84 Correct 134 ms 23148 KB Output is correct
85 Correct 224 ms 26856 KB Output is correct
86 Correct 76 ms 15928 KB Output is correct
87 Correct 330 ms 32628 KB Output is correct
88 Correct 316 ms 32852 KB Output is correct
89 Correct 260 ms 26200 KB Output is correct
90 Correct 187 ms 18752 KB Output is correct
91 Correct 185 ms 19468 KB Output is correct
92 Correct 229 ms 24268 KB Output is correct
93 Correct 357 ms 33836 KB Output is correct
94 Correct 350 ms 30668 KB Output is correct
95 Correct 428 ms 36872 KB Output is correct
96 Correct 234 ms 26068 KB Output is correct
97 Correct 299 ms 28712 KB Output is correct