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Submission #927309

# Submission time Handle Problem Language Result Execution time Memory
927309 2024-02-14T17:04:57 Z TAhmed33 Swapping Cities (APIO20_swap) C++17
100 / 100
 312 ms 49944 KB 
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 2e5 + 25;
int t[MAXN], n, m;
array <int, 3> edges[MAXN];
int deg[MAXN];
vector <int> sub[MAXN]; int par[MAXN];
bool ok[MAXN];
vector <array <int, 3>> times[MAXN];
int sum = 0;
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[i] = {u[i], v[i], w[i]};
	for (int i = 0; i < m; i++) t[i] = i;
	sort(t, t + m, [&] (int &x, int &y) { return edges[x][2] < edges[y][2]; });
	for (int i = 0; i < n; i++) {
		sub[i].push_back(i);
		par[i] = i;
		times[i].push_back({-1, i, 0}); sum++;assert(sum <= 1e7);
	}
	for (int i = 0; i < m; i++) {
		int a = edges[t[i]][0], b = edges[t[i]][1];
		if (par[a] == par[b]) {
			if (ok[par[a]]) {
				deg[a]++; deg[b]++;
				continue;
			}
			ok[par[a]] = 1;
			for (auto j : sub[par[a]]) {
				times[j].push_back({i, par[a], 1}); sum++;assert(sum <= 1e7);
			}
			deg[a]++; deg[b]++;
			continue;
		}
		if (sub[par[a]].size() > sub[par[b]].size()) swap(a, b);
		bool flag = ok[par[a]] || ok[par[b]];
		flag |= deg[a] > 1 || deg[b] > 1;
		if (!flag) {
			int l = par[a];
			for (auto j : sub[l]) {
				times[j].push_back({i, par[b], 0}); sum++;assert(sum <= 1e7);
				par[j] = par[b];
				sub[par[b]].push_back(j);
			}
			sub[l].clear();
			deg[a]++; deg[b]++;
			continue;
		}
		if (!ok[par[b]]) {
			ok[par[b]] = 1;
			for (auto j : sub[par[b]]) {
				times[j].push_back({i, par[b], 1}); sum++; assert(sum <= 1e7);
			}
		}
		int l = par[a];
		for (auto j : sub[l]) {
			times[j].push_back({i, par[b], 1}); sum++;assert(sum <= 1e7);
			par[j] = par[b];
			sub[par[b]].push_back(j);
		}
		sub[l].clear();
		deg[a]++; deg[b]++;
	}
}
int getMinimumFuelCapacity (int x, int y) {
	int l = 0, r = m - 1, ans = -1;
	while (l <= r) {
		int mid = (l + r) / 2;
		array <int, 3> ff = {mid + 1, (int)-1e9, (int)-1e9};
		auto g = lower_bound(times[x].begin(), times[x].end(), ff) - times[x].begin();
		auto h = lower_bound(times[y].begin(), times[y].end(), ff) - times[y].begin();
		g--; h--; 
		if (times[x][g][1] != times[y][h][1]) {
			l = mid + 1; continue;
		}
		if (!times[x][g][2] || !times[y][h][2]) {
			l = mid + 1;
		} else {
			r = mid - 1; ans = mid;
		}
	} 
	return ans == -1 ? -1 : edges[t[ans]][2];
}/*
int main () {
	int n, m;
	cin >> n >> m;
	vector <int> u, v, w;
	for (int i = 0; i < m; i++) {
		int a, b, c; cin >> a >> b >> c;
		u.push_back(a); v.push_back(b); w.push_back(c);
	}
	init(n, m, u, v, w);
	int x, y; cin >> x >> y;
	cout << getMinimumFuelCapacity(x, y) << '\n';
}*/

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12888 KB Output is correct
2 Correct 2 ms 12888 KB Output is correct
3 Correct 3 ms 12892 KB Output is correct
4 Correct 3 ms 12892 KB Output is correct
5 Correct 3 ms 12888 KB Output is correct
6 Correct 4 ms 12888 KB Output is correct
7 Correct 3 ms 13144 KB Output is correct
8 Correct 3 ms 12892 KB Output is correct
9 Correct 92 ms 31252 KB Output is correct
10 Correct 115 ms 35272 KB Output is correct
11 Correct 95 ms 34628 KB Output is correct
12 Correct 112 ms 36040 KB Output is correct
13 Correct 62 ms 25628 KB Output is correct
14 Correct 97 ms 31436 KB Output is correct
15 Correct 234 ms 38020 KB Output is correct
16 Correct 227 ms 36744 KB Output is correct
17 Correct 252 ms 38452 KB Output is correct
18 Correct 152 ms 27344 KB Output is correct
19 Correct 104 ms 20004 KB Output is correct
20 Correct 259 ms 41136 KB Output is correct
21 Correct 312 ms 40436 KB Output is correct
22 Correct 262 ms 42160 KB Output is correct
23 Correct 185 ms 31880 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12888 KB Output is correct
2 Correct 2 ms 12888 KB Output is correct
3 Correct 156 ms 24864 KB Output is correct
4 Correct 154 ms 25220 KB Output is correct
5 Correct 179 ms 25196 KB Output is correct
6 Correct 145 ms 25144 KB Output is correct
7 Correct 147 ms 25328 KB Output is correct
8 Correct 144 ms 24780 KB Output is correct
9 Correct 148 ms 25164 KB Output is correct
10 Correct 146 ms 24952 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12888 KB Output is correct
2 Correct 2 ms 12888 KB Output is correct
3 Correct 3 ms 12892 KB Output is correct
4 Correct 3 ms 12892 KB Output is correct
5 Correct 3 ms 12888 KB Output is correct
6 Correct 4 ms 12888 KB Output is correct
7 Correct 3 ms 13144 KB Output is correct
8 Correct 3 ms 12892 KB Output is correct
9 Correct 2 ms 12892 KB Output is correct
10 Correct 3 ms 12888 KB Output is correct
11 Correct 4 ms 12892 KB Output is correct
12 Correct 3 ms 12904 KB Output is correct
13 Correct 3 ms 12976 KB Output is correct
14 Correct 3 ms 12896 KB Output is correct
15 Correct 4 ms 12948 KB Output is correct
16 Correct 4 ms 13144 KB Output is correct
17 Correct 3 ms 12892 KB Output is correct
18 Correct 3 ms 12892 KB Output is correct
19 Correct 3 ms 12892 KB Output is correct
20 Correct 3 ms 12980 KB Output is correct
21 Correct 3 ms 12980 KB Output is correct
22 Correct 4 ms 12888 KB Output is correct
23 Correct 3 ms 12892 KB Output is correct
24 Correct 3 ms 13148 KB Output is correct
25 Correct 3 ms 12888 KB Output is correct
26 Correct 3 ms 13148 KB Output is correct
27 Correct 3 ms 12892 KB Output is correct
28 Correct 3 ms 12892 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12892 KB Output is correct
2 Correct 2 ms 12888 KB Output is correct
3 Correct 2 ms 12888 KB Output is correct
4 Correct 3 ms 12892 KB Output is correct
5 Correct 3 ms 12892 KB Output is correct
6 Correct 3 ms 12888 KB Output is correct
7 Correct 4 ms 12888 KB Output is correct
8 Correct 3 ms 13144 KB Output is correct
9 Correct 3 ms 12892 KB Output is correct
10 Correct 92 ms 31252 KB Output is correct
11 Correct 115 ms 35272 KB Output is correct
12 Correct 95 ms 34628 KB Output is correct
13 Correct 112 ms 36040 KB Output is correct
14 Correct 62 ms 25628 KB Output is correct
15 Correct 3 ms 12888 KB Output is correct
16 Correct 4 ms 12892 KB Output is correct
17 Correct 3 ms 12904 KB Output is correct
18 Correct 3 ms 12976 KB Output is correct
19 Correct 3 ms 12896 KB Output is correct
20 Correct 4 ms 12948 KB Output is correct
21 Correct 4 ms 13144 KB Output is correct
22 Correct 3 ms 12892 KB Output is correct
23 Correct 3 ms 12892 KB Output is correct
24 Correct 3 ms 12892 KB Output is correct
25 Correct 3 ms 12980 KB Output is correct
26 Correct 3 ms 12980 KB Output is correct
27 Correct 4 ms 12888 KB Output is correct
28 Correct 3 ms 12892 KB Output is correct
29 Correct 3 ms 13148 KB Output is correct
30 Correct 3 ms 12888 KB Output is correct
31 Correct 3 ms 13148 KB Output is correct
32 Correct 3 ms 12892 KB Output is correct
33 Correct 3 ms 12892 KB Output is correct
34 Correct 13 ms 15452 KB Output is correct
35 Correct 109 ms 36024 KB Output is correct
36 Correct 118 ms 35788 KB Output is correct
37 Correct 130 ms 35272 KB Output is correct
38 Correct 99 ms 34024 KB Output is correct
39 Correct 101 ms 33736 KB Output is correct
40 Correct 88 ms 31560 KB Output is correct
41 Correct 143 ms 39212 KB Output is correct
42 Correct 116 ms 37876 KB Output is correct
43 Correct 62 ms 24416 KB Output is correct
44 Correct 99 ms 33536 KB Output is correct
45 Correct 78 ms 26300 KB Output is correct
46 Correct 109 ms 35560 KB Output is correct
47 Correct 109 ms 30864 KB Output is correct
48 Correct 81 ms 26572 KB Output is correct
49 Correct 51 ms 17792 KB Output is correct
50 Correct 41 ms 17084 KB Output is correct
51 Correct 65 ms 23760 KB Output is correct
52 Correct 130 ms 37880 KB Output is correct
53 Correct 136 ms 33736 KB Output is correct
54 Correct 162 ms 41256 KB Output is correct
55 Correct 62 ms 25108 KB Output is correct
56 Correct 106 ms 29640 KB Output is correct

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12888 KB Output is correct
2 Correct 2 ms 12888 KB Output is correct
3 Correct 3 ms 12892 KB Output is correct
4 Correct 3 ms 12892 KB Output is correct
5 Correct 3 ms 12888 KB Output is correct
6 Correct 4 ms 12888 KB Output is correct
7 Correct 3 ms 13144 KB Output is correct
8 Correct 3 ms 12892 KB Output is correct
9 Correct 92 ms 31252 KB Output is correct
10 Correct 115 ms 35272 KB Output is correct
11 Correct 95 ms 34628 KB Output is correct
12 Correct 112 ms 36040 KB Output is correct
13 Correct 62 ms 25628 KB Output is correct
14 Correct 97 ms 31436 KB Output is correct
15 Correct 234 ms 38020 KB Output is correct
16 Correct 227 ms 36744 KB Output is correct
17 Correct 252 ms 38452 KB Output is correct
18 Correct 152 ms 27344 KB Output is correct
19 Correct 156 ms 24864 KB Output is correct
20 Correct 154 ms 25220 KB Output is correct
21 Correct 179 ms 25196 KB Output is correct
22 Correct 145 ms 25144 KB Output is correct
23 Correct 147 ms 25328 KB Output is correct
24 Correct 144 ms 24780 KB Output is correct
25 Correct 148 ms 25164 KB Output is correct
26 Correct 146 ms 24952 KB Output is correct
27 Correct 3 ms 12888 KB Output is correct
28 Correct 4 ms 12892 KB Output is correct
29 Correct 3 ms 12904 KB Output is correct
30 Correct 3 ms 12976 KB Output is correct
31 Correct 3 ms 12896 KB Output is correct
32 Correct 4 ms 12948 KB Output is correct
33 Correct 4 ms 13144 KB Output is correct
34 Correct 3 ms 12892 KB Output is correct
35 Correct 3 ms 12892 KB Output is correct
36 Correct 13 ms 15452 KB Output is correct
37 Correct 109 ms 36024 KB Output is correct
38 Correct 118 ms 35788 KB Output is correct
39 Correct 130 ms 35272 KB Output is correct
40 Correct 99 ms 34024 KB Output is correct
41 Correct 101 ms 33736 KB Output is correct
42 Correct 88 ms 31560 KB Output is correct
43 Correct 143 ms 39212 KB Output is correct
44 Correct 116 ms 37876 KB Output is correct
45 Correct 62 ms 24416 KB Output is correct
46 Correct 99 ms 33536 KB Output is correct
47 Correct 22 ms 15704 KB Output is correct
48 Correct 294 ms 38644 KB Output is correct
49 Correct 262 ms 38036 KB Output is correct
50 Correct 241 ms 37892 KB Output is correct
51 Correct 232 ms 37184 KB Output is correct
52 Correct 234 ms 35452 KB Output is correct
53 Correct 179 ms 29884 KB Output is correct
54 Correct 259 ms 40808 KB Output is correct
55 Correct 247 ms 40624 KB Output is correct
56 Correct 179 ms 28024 KB Output is correct
57 Correct 255 ms 36404 KB Output is correct

Subtask #6
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 12892 KB Output is correct
2 Correct 2 ms 12888 KB Output is correct
3 Correct 2 ms 12888 KB Output is correct
4 Correct 3 ms 12892 KB Output is correct
5 Correct 3 ms 12892 KB Output is correct
6 Correct 3 ms 12888 KB Output is correct
7 Correct 4 ms 12888 KB Output is correct
8 Correct 3 ms 13144 KB Output is correct
9 Correct 3 ms 12892 KB Output is correct
10 Correct 92 ms 31252 KB Output is correct
11 Correct 115 ms 35272 KB Output is correct
12 Correct 95 ms 34628 KB Output is correct
13 Correct 112 ms 36040 KB Output is correct
14 Correct 62 ms 25628 KB Output is correct
15 Correct 97 ms 31436 KB Output is correct
16 Correct 234 ms 38020 KB Output is correct
17 Correct 227 ms 36744 KB Output is correct
18 Correct 252 ms 38452 KB Output is correct
19 Correct 152 ms 27344 KB Output is correct
20 Correct 156 ms 24864 KB Output is correct
21 Correct 154 ms 25220 KB Output is correct
22 Correct 179 ms 25196 KB Output is correct
23 Correct 145 ms 25144 KB Output is correct
24 Correct 147 ms 25328 KB Output is correct
25 Correct 144 ms 24780 KB Output is correct
26 Correct 148 ms 25164 KB Output is correct
27 Correct 146 ms 24952 KB Output is correct
28 Correct 3 ms 12888 KB Output is correct
29 Correct 4 ms 12892 KB Output is correct
30 Correct 3 ms 12904 KB Output is correct
31 Correct 3 ms 12976 KB Output is correct
32 Correct 3 ms 12896 KB Output is correct
33 Correct 4 ms 12948 KB Output is correct
34 Correct 4 ms 13144 KB Output is correct
35 Correct 3 ms 12892 KB Output is correct
36 Correct 3 ms 12892 KB Output is correct
37 Correct 13 ms 15452 KB Output is correct
38 Correct 109 ms 36024 KB Output is correct
39 Correct 118 ms 35788 KB Output is correct
40 Correct 130 ms 35272 KB Output is correct
41 Correct 99 ms 34024 KB Output is correct
42 Correct 101 ms 33736 KB Output is correct
43 Correct 88 ms 31560 KB Output is correct
44 Correct 143 ms 39212 KB Output is correct
45 Correct 116 ms 37876 KB Output is correct
46 Correct 62 ms 24416 KB Output is correct
47 Correct 99 ms 33536 KB Output is correct
48 Correct 22 ms 15704 KB Output is correct
49 Correct 294 ms 38644 KB Output is correct
50 Correct 262 ms 38036 KB Output is correct
51 Correct 241 ms 37892 KB Output is correct
52 Correct 232 ms 37184 KB Output is correct
53 Correct 234 ms 35452 KB Output is correct
54 Correct 179 ms 29884 KB Output is correct
55 Correct 259 ms 40808 KB Output is correct
56 Correct 247 ms 40624 KB Output is correct
57 Correct 179 ms 28024 KB Output is correct
58 Correct 255 ms 36404 KB Output is correct
59 Correct 104 ms 20004 KB Output is correct
60 Correct 259 ms 41136 KB Output is correct
61 Correct 312 ms 40436 KB Output is correct
62 Correct 262 ms 42160 KB Output is correct
63 Correct 185 ms 31880 KB Output is correct
64 Correct 3 ms 12892 KB Output is correct
65 Correct 3 ms 12980 KB Output is correct
66 Correct 3 ms 12980 KB Output is correct
67 Correct 4 ms 12888 KB Output is correct
68 Correct 3 ms 12892 KB Output is correct
69 Correct 3 ms 13148 KB Output is correct
70 Correct 3 ms 12888 KB Output is correct
71 Correct 3 ms 13148 KB Output is correct
72 Correct 3 ms 12892 KB Output is correct
73 Correct 3 ms 12892 KB Output is correct
74 Correct 78 ms 26300 KB Output is correct
75 Correct 109 ms 35560 KB Output is correct
76 Correct 109 ms 30864 KB Output is correct
77 Correct 81 ms 26572 KB Output is correct
78 Correct 51 ms 17792 KB Output is correct
79 Correct 41 ms 17084 KB Output is correct
80 Correct 65 ms 23760 KB Output is correct
81 Correct 130 ms 37880 KB Output is correct
82 Correct 136 ms 33736 KB Output is correct
83 Correct 162 ms 41256 KB Output is correct
84 Correct 62 ms 25108 KB Output is correct
85 Correct 106 ms 29640 KB Output is correct
86 Correct 54 ms 19784 KB Output is correct
87 Correct 247 ms 41400 KB Output is correct
88 Correct 254 ms 41780 KB Output is correct
89 Correct 181 ms 32492 KB Output is correct
90 Correct 144 ms 24960 KB Output is correct
91 Correct 151 ms 25960 KB Output is correct
92 Correct 166 ms 31280 KB Output is correct
93 Correct 246 ms 45672 KB Output is correct
94 Correct 269 ms 42484 KB Output is correct
95 Correct 299 ms 49944 KB Output is correct
96 Correct 160 ms 31968 KB Output is correct
97 Correct 220 ms 36568 KB Output is correct