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Submission #927302

# Submission time Handle Problem Language Result Execution time Memory
927302 2024-02-14T16:54:57 Z TAhmed33 Swapping Cities (APIO20_swap) C++17
53 / 100
 328 ms 39480 KB 
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 1e5 + 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];
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});
	}
	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});
			}
			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});
				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});
			}
		}
		int l = par[a];
		for (auto j : sub[l]) {
			times[j].push_back({i, par[b], 1});
			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];
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6748 KB Output is correct
2 Correct 2 ms 6748 KB Output is correct
3 Correct 1 ms 6748 KB Output is correct
4 Correct 1 ms 6748 KB Output is correct
5 Correct 2 ms 6904 KB Output is correct
6 Correct 2 ms 6744 KB Output is correct
7 Correct 2 ms 6744 KB Output is correct
8 Correct 2 ms 6744 KB Output is correct
9 Correct 77 ms 25380 KB Output is correct
10 Correct 108 ms 29352 KB Output is correct
11 Correct 149 ms 28920 KB Output is correct
12 Correct 108 ms 30240 KB Output is correct
13 Correct 96 ms 19784 KB Output is correct
14 Correct 105 ms 25264 KB Output is correct
15 Correct 243 ms 34144 KB Output is correct
16 Correct 266 ms 33404 KB Output is correct
17 Correct 328 ms 35236 KB Output is correct
18 Correct 187 ms 24164 KB Output is correct
19 Correct 115 ms 15100 KB Output is correct
20 Correct 263 ms 35272 KB Output is correct
21 Correct 248 ms 34692 KB Output is correct
22 Correct 273 ms 36272 KB Output is correct
23 Correct 214 ms 25984 KB Output is correct

Subtask #2
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6748 KB Output is correct
2 Correct 2 ms 6748 KB Output is correct
3 Correct 166 ms 19164 KB Output is correct
4 Correct 156 ms 23360 KB Output is correct
5 Correct 158 ms 23404 KB Output is correct
6 Correct 170 ms 23344 KB Output is correct
7 Correct 156 ms 23372 KB Output is correct
8 Correct 146 ms 22908 KB Output is correct
9 Correct 152 ms 23196 KB Output is correct
10 Correct 153 ms 22920 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6748 KB Output is correct
2 Correct 2 ms 6748 KB Output is correct
3 Correct 1 ms 6748 KB Output is correct
4 Correct 1 ms 6748 KB Output is correct
5 Correct 2 ms 6904 KB Output is correct
6 Correct 2 ms 6744 KB Output is correct
7 Correct 2 ms 6744 KB Output is correct
8 Correct 2 ms 6744 KB Output is correct
9 Correct 2 ms 6744 KB Output is correct
10 Correct 3 ms 6748 KB Output is correct
11 Correct 2 ms 6748 KB Output is correct
12 Correct 2 ms 6748 KB Output is correct
13 Correct 2 ms 6748 KB Output is correct
14 Correct 2 ms 6748 KB Output is correct
15 Correct 2 ms 6748 KB Output is correct
16 Correct 2 ms 6744 KB Output is correct
17 Correct 2 ms 6748 KB Output is correct
18 Correct 2 ms 6748 KB Output is correct
19 Correct 2 ms 6748 KB Output is correct
20 Correct 3 ms 6748 KB Output is correct
21 Correct 2 ms 6748 KB Output is correct
22 Correct 2 ms 6744 KB Output is correct
23 Correct 2 ms 6836 KB Output is correct
24 Correct 2 ms 7000 KB Output is correct
25 Correct 2 ms 6748 KB Output is correct
26 Correct 2 ms 7000 KB Output is correct
27 Correct 2 ms 6748 KB Output is correct
28 Correct 2 ms 6744 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6744 KB Output is correct
2 Correct 1 ms 6748 KB Output is correct
3 Correct 2 ms 6748 KB Output is correct
4 Correct 1 ms 6748 KB Output is correct
5 Correct 1 ms 6748 KB Output is correct
6 Correct 2 ms 6904 KB Output is correct
7 Correct 2 ms 6744 KB Output is correct
8 Correct 2 ms 6744 KB Output is correct
9 Correct 2 ms 6744 KB Output is correct
10 Correct 77 ms 25380 KB Output is correct
11 Correct 108 ms 29352 KB Output is correct
12 Correct 149 ms 28920 KB Output is correct
13 Correct 108 ms 30240 KB Output is correct
14 Correct 96 ms 19784 KB Output is correct
15 Correct 3 ms 6748 KB Output is correct
16 Correct 2 ms 6748 KB Output is correct
17 Correct 2 ms 6748 KB Output is correct
18 Correct 2 ms 6748 KB Output is correct
19 Correct 2 ms 6748 KB Output is correct
20 Correct 2 ms 6748 KB Output is correct
21 Correct 2 ms 6744 KB Output is correct
22 Correct 2 ms 6748 KB Output is correct
23 Correct 2 ms 6748 KB Output is correct
24 Correct 2 ms 6748 KB Output is correct
25 Correct 3 ms 6748 KB Output is correct
26 Correct 2 ms 6748 KB Output is correct
27 Correct 2 ms 6744 KB Output is correct
28 Correct 2 ms 6836 KB Output is correct
29 Correct 2 ms 7000 KB Output is correct
30 Correct 2 ms 6748 KB Output is correct
31 Correct 2 ms 7000 KB Output is correct
32 Correct 2 ms 6748 KB Output is correct
33 Correct 2 ms 6744 KB Output is correct
34 Correct 11 ms 9304 KB Output is correct
35 Correct 113 ms 30584 KB Output is correct
36 Correct 105 ms 29828 KB Output is correct
37 Correct 133 ms 29388 KB Output is correct
38 Correct 109 ms 28532 KB Output is correct
39 Correct 138 ms 28104 KB Output is correct
40 Correct 107 ms 25720 KB Output is correct
41 Correct 116 ms 33096 KB Output is correct
42 Correct 123 ms 32164 KB Output is correct
43 Correct 64 ms 18652 KB Output is correct
44 Correct 99 ms 27984 KB Output is correct
45 Runtime error 42 ms 22056 KB Execution killed with signal 11
46 Halted 0 ms 0 KB -

Subtask #5
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 6748 KB Output is correct
2 Correct 2 ms 6748 KB Output is correct
3 Correct 1 ms 6748 KB Output is correct
4 Correct 1 ms 6748 KB Output is correct
5 Correct 2 ms 6904 KB Output is correct
6 Correct 2 ms 6744 KB Output is correct
7 Correct 2 ms 6744 KB Output is correct
8 Correct 2 ms 6744 KB Output is correct
9 Correct 77 ms 25380 KB Output is correct
10 Correct 108 ms 29352 KB Output is correct
11 Correct 149 ms 28920 KB Output is correct
12 Correct 108 ms 30240 KB Output is correct
13 Correct 96 ms 19784 KB Output is correct
14 Correct 105 ms 25264 KB Output is correct
15 Correct 243 ms 34144 KB Output is correct
16 Correct 266 ms 33404 KB Output is correct
17 Correct 328 ms 35236 KB Output is correct
18 Correct 187 ms 24164 KB Output is correct
19 Correct 166 ms 19164 KB Output is correct
20 Correct 156 ms 23360 KB Output is correct
21 Correct 158 ms 23404 KB Output is correct
22 Correct 170 ms 23344 KB Output is correct
23 Correct 156 ms 23372 KB Output is correct
24 Correct 146 ms 22908 KB Output is correct
25 Correct 152 ms 23196 KB Output is correct
26 Correct 153 ms 22920 KB Output is correct
27 Correct 3 ms 6748 KB Output is correct
28 Correct 2 ms 6748 KB Output is correct
29 Correct 2 ms 6748 KB Output is correct
30 Correct 2 ms 6748 KB Output is correct
31 Correct 2 ms 6748 KB Output is correct
32 Correct 2 ms 6748 KB Output is correct
33 Correct 2 ms 6744 KB Output is correct
34 Correct 2 ms 6748 KB Output is correct
35 Correct 2 ms 6748 KB Output is correct
36 Correct 11 ms 9304 KB Output is correct
37 Correct 113 ms 30584 KB Output is correct
38 Correct 105 ms 29828 KB Output is correct
39 Correct 133 ms 29388 KB Output is correct
40 Correct 109 ms 28532 KB Output is correct
41 Correct 138 ms 28104 KB Output is correct
42 Correct 107 ms 25720 KB Output is correct
43 Correct 116 ms 33096 KB Output is correct
44 Correct 123 ms 32164 KB Output is correct
45 Correct 64 ms 18652 KB Output is correct
46 Correct 99 ms 27984 KB Output is correct
47 Correct 22 ms 10076 KB Output is correct
48 Correct 308 ms 37204 KB Output is correct
49 Correct 259 ms 36404 KB Output is correct
50 Correct 256 ms 36404 KB Output is correct
51 Correct 245 ms 35600 KB Output is correct
52 Correct 262 ms 33536 KB Output is correct
53 Correct 219 ms 27324 KB Output is correct
54 Correct 259 ms 39480 KB Output is correct
55 Correct 303 ms 39272 KB Output is correct
56 Correct 160 ms 26324 KB Output is correct
57 Correct 268 ms 35120 KB Output is correct

Subtask #6
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6744 KB Output is correct
2 Correct 1 ms 6748 KB Output is correct
3 Correct 2 ms 6748 KB Output is correct
4 Correct 1 ms 6748 KB Output is correct
5 Correct 1 ms 6748 KB Output is correct
6 Correct 2 ms 6904 KB Output is correct
7 Correct 2 ms 6744 KB Output is correct
8 Correct 2 ms 6744 KB Output is correct
9 Correct 2 ms 6744 KB Output is correct
10 Correct 77 ms 25380 KB Output is correct
11 Correct 108 ms 29352 KB Output is correct
12 Correct 149 ms 28920 KB Output is correct
13 Correct 108 ms 30240 KB Output is correct
14 Correct 96 ms 19784 KB Output is correct
15 Correct 105 ms 25264 KB Output is correct
16 Correct 243 ms 34144 KB Output is correct
17 Correct 266 ms 33404 KB Output is correct
18 Correct 328 ms 35236 KB Output is correct
19 Correct 187 ms 24164 KB Output is correct
20 Correct 166 ms 19164 KB Output is correct
21 Correct 156 ms 23360 KB Output is correct
22 Correct 158 ms 23404 KB Output is correct
23 Correct 170 ms 23344 KB Output is correct
24 Correct 156 ms 23372 KB Output is correct
25 Correct 146 ms 22908 KB Output is correct
26 Correct 152 ms 23196 KB Output is correct
27 Correct 153 ms 22920 KB Output is correct
28 Correct 3 ms 6748 KB Output is correct
29 Correct 2 ms 6748 KB Output is correct
30 Correct 2 ms 6748 KB Output is correct
31 Correct 2 ms 6748 KB Output is correct
32 Correct 2 ms 6748 KB Output is correct
33 Correct 2 ms 6748 KB Output is correct
34 Correct 2 ms 6744 KB Output is correct
35 Correct 2 ms 6748 KB Output is correct
36 Correct 2 ms 6748 KB Output is correct
37 Correct 11 ms 9304 KB Output is correct
38 Correct 113 ms 30584 KB Output is correct
39 Correct 105 ms 29828 KB Output is correct
40 Correct 133 ms 29388 KB Output is correct
41 Correct 109 ms 28532 KB Output is correct
42 Correct 138 ms 28104 KB Output is correct
43 Correct 107 ms 25720 KB Output is correct
44 Correct 116 ms 33096 KB Output is correct
45 Correct 123 ms 32164 KB Output is correct
46 Correct 64 ms 18652 KB Output is correct
47 Correct 99 ms 27984 KB Output is correct
48 Correct 22 ms 10076 KB Output is correct
49 Correct 308 ms 37204 KB Output is correct
50 Correct 259 ms 36404 KB Output is correct
51 Correct 256 ms 36404 KB Output is correct
52 Correct 245 ms 35600 KB Output is correct
53 Correct 262 ms 33536 KB Output is correct
54 Correct 219 ms 27324 KB Output is correct
55 Correct 259 ms 39480 KB Output is correct
56 Correct 303 ms 39272 KB Output is correct
57 Correct 160 ms 26324 KB Output is correct
58 Correct 268 ms 35120 KB Output is correct
59 Correct 115 ms 15100 KB Output is correct
60 Correct 263 ms 35272 KB Output is correct
61 Correct 248 ms 34692 KB Output is correct
62 Correct 273 ms 36272 KB Output is correct
63 Correct 214 ms 25984 KB Output is correct
64 Correct 2 ms 6748 KB Output is correct
65 Correct 3 ms 6748 KB Output is correct
66 Correct 2 ms 6748 KB Output is correct
67 Correct 2 ms 6744 KB Output is correct
68 Correct 2 ms 6836 KB Output is correct
69 Correct 2 ms 7000 KB Output is correct
70 Correct 2 ms 6748 KB Output is correct
71 Correct 2 ms 7000 KB Output is correct
72 Correct 2 ms 6748 KB Output is correct
73 Correct 2 ms 6744 KB Output is correct
74 Runtime error 42 ms 22056 KB Execution killed with signal 11
75 Halted 0 ms 0 KB -