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Submission #1032243

# Submission time Handle Problem Language Result Execution time Memory
1032243 2024-07-23T13:48:50 Z 0npata Swapping Cities (APIO20_swap) C++17
100 / 100
 298 ms 51096 KB 
#include "swap.h"
#include<bits/stdc++.h>

using namespace std;

#define vec vector

const int N = 100005;

vec<pair<int, int>> hist[N];
vec<int> okt(N, -1);

const int INF = 1e9+5;

struct Comp {
	pair<int, int> eps;
	vec<int> vs;
};

void init(int N, int M, std::vector<int> U, std::vector<int> V, std::vector<int> W) {
	vec<Comp> comps(N);
	for(int i = 0; i<N; i++) {
		comps[i] = {{i, i}, {i}};
		hist[i] = {{i, 0}};
	}
	set<pair<int, pair<int, int>>> edges;
	for(int i = 0; i<M; i++) {
		edges.insert({W[i], {U[i], V[i]}});
	}

	vec<int> ci(N);
	iota(ci.begin(), ci.end(), 0);

	auto upd = [&](int i, int w) {
		if(okt[i] != -1) return;
		okt[i] = w;
	};

	for(auto [weight, eps] : edges) {
		auto [u, v] = eps;

		if(ci[u] == ci[v]) {
			upd(ci[u], weight);
			continue;
		}

		if(comps[ci[u]].vs.size() < comps[ci[v]].vs.size()) swap(u, v);


		if(u == comps[ci[u]].eps.second) swap(comps[ci[u]].eps.first, comps[ci[u]].eps.second);
		if(v == comps[ci[v]].eps.second) swap(comps[ci[v]].eps.first, comps[ci[v]].eps.second);

		if(okt[ci[v]] == -1 && u == comps[ci[u]].eps.first && v == comps[ci[v]].eps.first) {
			comps[ci[u]].eps = {comps[ci[u]].eps.second, comps[ci[v]].eps.second};
		}
		else {
			upd(ci[u], weight);
		}

		for(int w : comps[ci[v]].vs) {
			ci[w] = ci[u];
			comps[ci[u]].vs.push_back(w);
			hist[w].push_back({ci[u], weight});
		}
	}

	for(int i = 0; i<N; i++) {
		hist[i].push_back({-1, INF});
	}
}

int getMinimumFuelCapacity(int X, int Y) {
	int i = 0;
	int j = 0;

	//cerr << okt[1] << '\n';

	while(i<hist[X].size() && j < hist[Y].size()) {
		if(hist[X][i].first == hist[Y][j].first && okt[hist[X][i].first] != -1) {
			return max(max(hist[X][i].second, hist[Y][j].second), okt[hist[X][i].first]);
		}
		if(hist[X][i+1].second < hist[Y][j+1].second) {
			i++;
		}
		else {
			j++;
		}
	}


	return -1;
}

Compilation message

swap.cpp: In function 'int getMinimumFuelCapacity(int, int)':
swap.cpp:78:9: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   78 |  while(i<hist[X].size() && j < hist[Y].size()) {
      |        ~^~~~~~~~~~~~~~~
swap.cpp:78:30: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   78 |  while(i<hist[X].size() && j < hist[Y].size()) {
      |                            ~~^~~~~~~~~~~~~~~~

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3416 KB Output is correct
2 Correct 2 ms 3164 KB Output is correct
3 Correct 1 ms 3164 KB Output is correct
4 Correct 2 ms 3164 KB Output is correct
5 Correct 2 ms 3420 KB Output is correct
6 Correct 2 ms 3420 KB Output is correct
7 Correct 2 ms 3420 KB Output is correct
8 Correct 2 ms 3420 KB Output is correct
9 Correct 97 ms 29060 KB Output is correct
10 Correct 121 ms 34540 KB Output is correct
11 Correct 112 ms 33824 KB Output is correct
12 Correct 156 ms 35920 KB Output is correct
13 Correct 92 ms 28848 KB Output is correct
14 Correct 101 ms 29156 KB Output is correct
15 Correct 187 ms 39004 KB Output is correct
16 Correct 175 ms 37828 KB Output is correct
17 Correct 188 ms 40196 KB Output is correct
18 Correct 144 ms 32712 KB Output is correct
19 Correct 51 ms 11876 KB Output is correct
20 Correct 181 ms 38728 KB Output is correct
21 Correct 181 ms 37836 KB Output is correct
22 Correct 180 ms 40044 KB Output is correct
23 Correct 151 ms 32840 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3416 KB Output is correct
2 Correct 2 ms 3164 KB Output is correct
3 Correct 130 ms 30668 KB Output is correct
4 Correct 134 ms 31776 KB Output is correct
5 Correct 117 ms 31176 KB Output is correct
6 Correct 126 ms 31732 KB Output is correct
7 Correct 165 ms 31560 KB Output is correct
8 Correct 114 ms 30416 KB Output is correct
9 Correct 129 ms 31204 KB Output is correct
10 Correct 126 ms 30156 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3416 KB Output is correct
2 Correct 2 ms 3164 KB Output is correct
3 Correct 1 ms 3164 KB Output is correct
4 Correct 2 ms 3164 KB Output is correct
5 Correct 2 ms 3420 KB Output is correct
6 Correct 2 ms 3420 KB Output is correct
7 Correct 2 ms 3420 KB Output is correct
8 Correct 2 ms 3420 KB Output is correct
9 Correct 2 ms 3164 KB Output is correct
10 Correct 2 ms 3420 KB Output is correct
11 Correct 2 ms 3452 KB Output is correct
12 Correct 2 ms 3420 KB Output is correct
13 Correct 2 ms 3164 KB Output is correct
14 Correct 2 ms 3420 KB Output is correct
15 Correct 3 ms 3420 KB Output is correct
16 Correct 2 ms 3460 KB Output is correct
17 Correct 2 ms 3420 KB Output is correct
18 Correct 3 ms 3420 KB Output is correct
19 Correct 2 ms 3224 KB Output is correct
20 Correct 3 ms 3420 KB Output is correct
21 Correct 2 ms 3420 KB Output is correct
22 Correct 3 ms 3420 KB Output is correct
23 Correct 2 ms 3164 KB Output is correct
24 Correct 2 ms 3420 KB Output is correct
25 Correct 2 ms 3420 KB Output is correct
26 Correct 2 ms 3420 KB Output is correct
27 Correct 2 ms 3420 KB Output is correct
28 Correct 3 ms 3420 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3164 KB Output is correct
2 Correct 2 ms 3416 KB Output is correct
3 Correct 2 ms 3164 KB Output is correct
4 Correct 1 ms 3164 KB Output is correct
5 Correct 2 ms 3164 KB Output is correct
6 Correct 2 ms 3420 KB Output is correct
7 Correct 2 ms 3420 KB Output is correct
8 Correct 2 ms 3420 KB Output is correct
9 Correct 2 ms 3420 KB Output is correct
10 Correct 97 ms 29060 KB Output is correct
11 Correct 121 ms 34540 KB Output is correct
12 Correct 112 ms 33824 KB Output is correct
13 Correct 156 ms 35920 KB Output is correct
14 Correct 92 ms 28848 KB Output is correct
15 Correct 2 ms 3420 KB Output is correct
16 Correct 2 ms 3452 KB Output is correct
17 Correct 2 ms 3420 KB Output is correct
18 Correct 2 ms 3164 KB Output is correct
19 Correct 2 ms 3420 KB Output is correct
20 Correct 3 ms 3420 KB Output is correct
21 Correct 2 ms 3460 KB Output is correct
22 Correct 2 ms 3420 KB Output is correct
23 Correct 3 ms 3420 KB Output is correct
24 Correct 2 ms 3224 KB Output is correct
25 Correct 3 ms 3420 KB Output is correct
26 Correct 2 ms 3420 KB Output is correct
27 Correct 3 ms 3420 KB Output is correct
28 Correct 2 ms 3164 KB Output is correct
29 Correct 2 ms 3420 KB Output is correct
30 Correct 2 ms 3420 KB Output is correct
31 Correct 2 ms 3420 KB Output is correct
32 Correct 2 ms 3420 KB Output is correct
33 Correct 3 ms 3420 KB Output is correct
34 Correct 13 ms 7004 KB Output is correct
35 Correct 125 ms 35276 KB Output is correct
36 Correct 131 ms 35016 KB Output is correct
37 Correct 139 ms 34032 KB Output is correct
38 Correct 123 ms 32712 KB Output is correct
39 Correct 117 ms 32220 KB Output is correct
40 Correct 102 ms 29420 KB Output is correct
41 Correct 127 ms 36272 KB Output is correct
42 Correct 127 ms 36060 KB Output is correct
43 Correct 100 ms 28496 KB Output is correct
44 Correct 117 ms 33000 KB Output is correct
45 Correct 114 ms 30860 KB Output is correct
46 Correct 115 ms 34896 KB Output is correct
47 Correct 105 ms 31476 KB Output is correct
48 Correct 110 ms 29304 KB Output is correct
49 Correct 84 ms 19536 KB Output is correct
50 Correct 66 ms 17008 KB Output is correct
51 Correct 107 ms 26556 KB Output is correct
52 Correct 174 ms 40652 KB Output is correct
53 Correct 169 ms 38456 KB Output is correct
54 Correct 209 ms 46480 KB Output is correct
55 Correct 102 ms 28364 KB Output is correct
56 Correct 190 ms 36916 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3416 KB Output is correct
2 Correct 2 ms 3164 KB Output is correct
3 Correct 1 ms 3164 KB Output is correct
4 Correct 2 ms 3164 KB Output is correct
5 Correct 2 ms 3420 KB Output is correct
6 Correct 2 ms 3420 KB Output is correct
7 Correct 2 ms 3420 KB Output is correct
8 Correct 2 ms 3420 KB Output is correct
9 Correct 97 ms 29060 KB Output is correct
10 Correct 121 ms 34540 KB Output is correct
11 Correct 112 ms 33824 KB Output is correct
12 Correct 156 ms 35920 KB Output is correct
13 Correct 92 ms 28848 KB Output is correct
14 Correct 101 ms 29156 KB Output is correct
15 Correct 187 ms 39004 KB Output is correct
16 Correct 175 ms 37828 KB Output is correct
17 Correct 188 ms 40196 KB Output is correct
18 Correct 144 ms 32712 KB Output is correct
19 Correct 130 ms 30668 KB Output is correct
20 Correct 134 ms 31776 KB Output is correct
21 Correct 117 ms 31176 KB Output is correct
22 Correct 126 ms 31732 KB Output is correct
23 Correct 165 ms 31560 KB Output is correct
24 Correct 114 ms 30416 KB Output is correct
25 Correct 129 ms 31204 KB Output is correct
26 Correct 126 ms 30156 KB Output is correct
27 Correct 2 ms 3420 KB Output is correct
28 Correct 2 ms 3452 KB Output is correct
29 Correct 2 ms 3420 KB Output is correct
30 Correct 2 ms 3164 KB Output is correct
31 Correct 2 ms 3420 KB Output is correct
32 Correct 3 ms 3420 KB Output is correct
33 Correct 2 ms 3460 KB Output is correct
34 Correct 2 ms 3420 KB Output is correct
35 Correct 3 ms 3420 KB Output is correct
36 Correct 13 ms 7004 KB Output is correct
37 Correct 125 ms 35276 KB Output is correct
38 Correct 131 ms 35016 KB Output is correct
39 Correct 139 ms 34032 KB Output is correct
40 Correct 123 ms 32712 KB Output is correct
41 Correct 117 ms 32220 KB Output is correct
42 Correct 102 ms 29420 KB Output is correct
43 Correct 127 ms 36272 KB Output is correct
44 Correct 127 ms 36060 KB Output is correct
45 Correct 100 ms 28496 KB Output is correct
46 Correct 117 ms 33000 KB Output is correct
47 Correct 16 ms 7000 KB Output is correct
48 Correct 208 ms 39440 KB Output is correct
49 Correct 232 ms 38408 KB Output is correct
50 Correct 224 ms 38384 KB Output is correct
51 Correct 183 ms 37324 KB Output is correct
52 Correct 172 ms 34600 KB Output is correct
53 Correct 128 ms 26432 KB Output is correct
54 Correct 219 ms 39476 KB Output is correct
55 Correct 214 ms 40300 KB Output is correct
56 Correct 158 ms 32460 KB Output is correct
57 Correct 204 ms 36296 KB Output is correct

Subtask #6
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 3164 KB Output is correct
2 Correct 2 ms 3416 KB Output is correct
3 Correct 2 ms 3164 KB Output is correct
4 Correct 1 ms 3164 KB Output is correct
5 Correct 2 ms 3164 KB Output is correct
6 Correct 2 ms 3420 KB Output is correct
7 Correct 2 ms 3420 KB Output is correct
8 Correct 2 ms 3420 KB Output is correct
9 Correct 2 ms 3420 KB Output is correct
10 Correct 97 ms 29060 KB Output is correct
11 Correct 121 ms 34540 KB Output is correct
12 Correct 112 ms 33824 KB Output is correct
13 Correct 156 ms 35920 KB Output is correct
14 Correct 92 ms 28848 KB Output is correct
15 Correct 101 ms 29156 KB Output is correct
16 Correct 187 ms 39004 KB Output is correct
17 Correct 175 ms 37828 KB Output is correct
18 Correct 188 ms 40196 KB Output is correct
19 Correct 144 ms 32712 KB Output is correct
20 Correct 130 ms 30668 KB Output is correct
21 Correct 134 ms 31776 KB Output is correct
22 Correct 117 ms 31176 KB Output is correct
23 Correct 126 ms 31732 KB Output is correct
24 Correct 165 ms 31560 KB Output is correct
25 Correct 114 ms 30416 KB Output is correct
26 Correct 129 ms 31204 KB Output is correct
27 Correct 126 ms 30156 KB Output is correct
28 Correct 2 ms 3420 KB Output is correct
29 Correct 2 ms 3452 KB Output is correct
30 Correct 2 ms 3420 KB Output is correct
31 Correct 2 ms 3164 KB Output is correct
32 Correct 2 ms 3420 KB Output is correct
33 Correct 3 ms 3420 KB Output is correct
34 Correct 2 ms 3460 KB Output is correct
35 Correct 2 ms 3420 KB Output is correct
36 Correct 3 ms 3420 KB Output is correct
37 Correct 13 ms 7004 KB Output is correct
38 Correct 125 ms 35276 KB Output is correct
39 Correct 131 ms 35016 KB Output is correct
40 Correct 139 ms 34032 KB Output is correct
41 Correct 123 ms 32712 KB Output is correct
42 Correct 117 ms 32220 KB Output is correct
43 Correct 102 ms 29420 KB Output is correct
44 Correct 127 ms 36272 KB Output is correct
45 Correct 127 ms 36060 KB Output is correct
46 Correct 100 ms 28496 KB Output is correct
47 Correct 117 ms 33000 KB Output is correct
48 Correct 16 ms 7000 KB Output is correct
49 Correct 208 ms 39440 KB Output is correct
50 Correct 232 ms 38408 KB Output is correct
51 Correct 224 ms 38384 KB Output is correct
52 Correct 183 ms 37324 KB Output is correct
53 Correct 172 ms 34600 KB Output is correct
54 Correct 128 ms 26432 KB Output is correct
55 Correct 219 ms 39476 KB Output is correct
56 Correct 214 ms 40300 KB Output is correct
57 Correct 158 ms 32460 KB Output is correct
58 Correct 204 ms 36296 KB Output is correct
59 Correct 51 ms 11876 KB Output is correct
60 Correct 181 ms 38728 KB Output is correct
61 Correct 181 ms 37836 KB Output is correct
62 Correct 180 ms 40044 KB Output is correct
63 Correct 151 ms 32840 KB Output is correct
64 Correct 2 ms 3224 KB Output is correct
65 Correct 3 ms 3420 KB Output is correct
66 Correct 2 ms 3420 KB Output is correct
67 Correct 3 ms 3420 KB Output is correct
68 Correct 2 ms 3164 KB Output is correct
69 Correct 2 ms 3420 KB Output is correct
70 Correct 2 ms 3420 KB Output is correct
71 Correct 2 ms 3420 KB Output is correct
72 Correct 2 ms 3420 KB Output is correct
73 Correct 3 ms 3420 KB Output is correct
74 Correct 114 ms 30860 KB Output is correct
75 Correct 115 ms 34896 KB Output is correct
76 Correct 105 ms 31476 KB Output is correct
77 Correct 110 ms 29304 KB Output is correct
78 Correct 84 ms 19536 KB Output is correct
79 Correct 66 ms 17008 KB Output is correct
80 Correct 107 ms 26556 KB Output is correct
81 Correct 174 ms 40652 KB Output is correct
82 Correct 169 ms 38456 KB Output is correct
83 Correct 209 ms 46480 KB Output is correct
84 Correct 102 ms 28364 KB Output is correct
85 Correct 190 ms 36916 KB Output is correct
86 Correct 54 ms 14172 KB Output is correct
87 Correct 195 ms 37660 KB Output is correct
88 Correct 172 ms 37832 KB Output is correct
89 Correct 139 ms 31828 KB Output is correct
90 Correct 141 ms 24144 KB Output is correct
91 Correct 169 ms 24148 KB Output is correct
92 Correct 145 ms 29644 KB Output is correct
93 Correct 243 ms 43548 KB Output is correct
94 Correct 218 ms 42444 KB Output is correct
95 Correct 298 ms 51096 KB Output is correct
96 Correct 179 ms 32460 KB Output is correct
97 Correct 219 ms 37044 KB Output is correct