oj.uz

Submission #391366

# Submission time Handle Problem Language Result Execution time Memory
391366 2021-04-18T16:26:58 Z ritul_kr_singh Evacuation plan (IZhO18_plan) C++17
100 / 100
 860 ms 61576 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define sp << ' ' <<
#define nl << '\n'
#define v e.first
#define w e.second

const int MAXN = 1e5, INF = 1e18;
vector<vector<pair<int, int>>> g(MAXN);
vector<int> par(MAXN), d(MAXN, INF);

int find(int u){
	return par[u] == u ? u : par[u] = find(par[u]);
}

bool comp(int a, int b){
	return d[a] > d[b];
}

signed main(){
	cin.tie(0)->sync_with_stdio(0);
	int n, m, x, y, z; cin >> n >> m;
	while(m--){
		cin >> x >> y >> z; --x, --y;
		g[x].emplace_back(y, z);
		g[y].emplace_back(x, z);
	}

	priority_queue<pair<int, int>> q;

	cin >> z;
	while(z--){
		cin >> x; --x;
		d[x] = 0;
		q.emplace(0, x);
	}

	while(!q.empty()){
		int u = q.top().second, dist = -q.top().first; q.pop();
		if(dist != d[u]) continue;
		for(auto &e : g[u])
			if(d[v] > dist + w) q.emplace(-(d[v] = dist + w), v);
	}

	vector<set<int>> groups(n);



	cin >> z;
	for(int i=0; i<z; ++i){
		cin >> x >> y; --x, --y;
		groups[x].insert(i);
		groups[y].insert(i);
	}

	vector<int> cities(n), ans(z);
	iota(cities.begin(), cities.end(), 0LL);
	sort(cities.begin(), cities.end(), comp);

	vector<int> pos(n);
	for(int i=0; i<n; ++i) pos[cities[i]] = i;

	iota(par.begin(), par.begin()+n, 0LL);

	for(int u : cities){
		// cout << u+1 sp d[u] sp "..." nl;
		z = u;
		u = find(u);
		for(auto &e : g[u]){
			if(pos[v] > pos[z]) continue;
			x = find(v);
			if(groups[x].size() > groups[u].size()) swap(groups[x], groups[u]);
		}
		for(auto &e : g[u]){
			if(pos[v] > pos[z]) continue;
			x = find(v);
			if(x == u) continue;
			for(int i : groups[x]){
				if(groups[u].find(i) != groups[u].end()){
					ans[i] = d[u];
					// cout << u+1 sp d[u] nl;
				}else groups[u].insert(i);
			}
			par[x] = u;
		}
	}

	for(int i : ans) cout << i nl;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4172 KB Output is correct
2 Correct 4 ms 4428 KB Output is correct
3 Correct 4 ms 4428 KB Output is correct
4 Correct 3 ms 4172 KB Output is correct
5 Correct 4 ms 4412 KB Output is correct
6 Correct 4 ms 4428 KB Output is correct
7 Correct 3 ms 4172 KB Output is correct
8 Correct 3 ms 4172 KB Output is correct
9 Correct 5 ms 4556 KB Output is correct
10 Correct 4 ms 4428 KB Output is correct
11 Correct 4 ms 4556 KB Output is correct
12 Correct 4 ms 4428 KB Output is correct
13 Correct 4 ms 4556 KB Output is correct
14 Correct 4 ms 4556 KB Output is correct
15 Correct 4 ms 4428 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4172 KB Output is correct
2 Correct 4 ms 4428 KB Output is correct
3 Correct 4 ms 4428 KB Output is correct
4 Correct 3 ms 4172 KB Output is correct
5 Correct 4 ms 4412 KB Output is correct
6 Correct 4 ms 4428 KB Output is correct
7 Correct 3 ms 4172 KB Output is correct
8 Correct 3 ms 4172 KB Output is correct
9 Correct 5 ms 4556 KB Output is correct
10 Correct 4 ms 4428 KB Output is correct
11 Correct 4 ms 4556 KB Output is correct
12 Correct 4 ms 4428 KB Output is correct
13 Correct 4 ms 4556 KB Output is correct
14 Correct 4 ms 4556 KB Output is correct
15 Correct 4 ms 4428 KB Output is correct
16 Correct 345 ms 32464 KB Output is correct
17 Correct 860 ms 51668 KB Output is correct
18 Correct 43 ms 8720 KB Output is correct
19 Correct 242 ms 27228 KB Output is correct
20 Correct 785 ms 51900 KB Output is correct
21 Correct 520 ms 38592 KB Output is correct
22 Correct 260 ms 32052 KB Output is correct
23 Correct 778 ms 61220 KB Output is correct
24 Correct 770 ms 61092 KB Output is correct
25 Correct 796 ms 61356 KB Output is correct
26 Correct 244 ms 30004 KB Output is correct
27 Correct 231 ms 30044 KB Output is correct
28 Correct 237 ms 29968 KB Output is correct
29 Correct 236 ms 30224 KB Output is correct
30 Correct 228 ms 30132 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4172 KB Output is correct
2 Correct 3 ms 4172 KB Output is correct
3 Correct 3 ms 4172 KB Output is correct
4 Correct 3 ms 4172 KB Output is correct
5 Correct 3 ms 4172 KB Output is correct
6 Correct 3 ms 4172 KB Output is correct
7 Correct 4 ms 4172 KB Output is correct
8 Correct 3 ms 4300 KB Output is correct
9 Correct 3 ms 4172 KB Output is correct
10 Correct 3 ms 4172 KB Output is correct

Subtask #4
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 238 ms 22264 KB Output is correct
2 Correct 506 ms 38492 KB Output is correct
3 Correct 481 ms 38456 KB Output is correct
4 Correct 81 ms 15120 KB Output is correct
5 Correct 521 ms 46764 KB Output is correct
6 Correct 483 ms 46692 KB Output is correct
7 Correct 560 ms 46580 KB Output is correct
8 Correct 486 ms 46664 KB Output is correct
9 Correct 495 ms 46644 KB Output is correct
10 Correct 493 ms 46672 KB Output is correct
11 Correct 537 ms 46652 KB Output is correct
12 Correct 487 ms 46664 KB Output is correct
13 Correct 490 ms 46632 KB Output is correct
14 Correct 486 ms 46632 KB Output is correct
15 Correct 502 ms 46908 KB Output is correct
16 Correct 512 ms 46736 KB Output is correct
17 Correct 495 ms 46656 KB Output is correct
18 Correct 515 ms 46696 KB Output is correct
19 Correct 78 ms 16840 KB Output is correct
20 Correct 493 ms 46740 KB Output is correct
21 Correct 452 ms 46524 KB Output is correct
22 Correct 132 ms 18356 KB Output is correct
23 Correct 95 ms 17232 KB Output is correct
24 Correct 103 ms 18304 KB Output is correct
25 Correct 103 ms 18360 KB Output is correct
26 Correct 113 ms 17336 KB Output is correct
27 Correct 81 ms 16756 KB Output is correct
28 Correct 108 ms 18284 KB Output is correct
29 Correct 103 ms 16812 KB Output is correct
30 Correct 110 ms 18316 KB Output is correct
31 Correct 85 ms 16764 KB Output is correct

Subtask #5
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4172 KB Output is correct
2 Correct 4 ms 4428 KB Output is correct
3 Correct 4 ms 4428 KB Output is correct
4 Correct 3 ms 4172 KB Output is correct
5 Correct 4 ms 4412 KB Output is correct
6 Correct 4 ms 4428 KB Output is correct
7 Correct 3 ms 4172 KB Output is correct
8 Correct 3 ms 4172 KB Output is correct
9 Correct 5 ms 4556 KB Output is correct
10 Correct 4 ms 4428 KB Output is correct
11 Correct 4 ms 4556 KB Output is correct
12 Correct 4 ms 4428 KB Output is correct
13 Correct 4 ms 4556 KB Output is correct
14 Correct 4 ms 4556 KB Output is correct
15 Correct 4 ms 4428 KB Output is correct
16 Correct 345 ms 32464 KB Output is correct
17 Correct 860 ms 51668 KB Output is correct
18 Correct 43 ms 8720 KB Output is correct
19 Correct 242 ms 27228 KB Output is correct
20 Correct 785 ms 51900 KB Output is correct
21 Correct 520 ms 38592 KB Output is correct
22 Correct 260 ms 32052 KB Output is correct
23 Correct 778 ms 61220 KB Output is correct
24 Correct 770 ms 61092 KB Output is correct
25 Correct 796 ms 61356 KB Output is correct
26 Correct 244 ms 30004 KB Output is correct
27 Correct 231 ms 30044 KB Output is correct
28 Correct 237 ms 29968 KB Output is correct
29 Correct 236 ms 30224 KB Output is correct
30 Correct 228 ms 30132 KB Output is correct
31 Correct 3 ms 4172 KB Output is correct
32 Correct 3 ms 4172 KB Output is correct
33 Correct 3 ms 4172 KB Output is correct
34 Correct 3 ms 4172 KB Output is correct
35 Correct 3 ms 4172 KB Output is correct
36 Correct 3 ms 4172 KB Output is correct
37 Correct 4 ms 4172 KB Output is correct
38 Correct 3 ms 4300 KB Output is correct
39 Correct 3 ms 4172 KB Output is correct
40 Correct 3 ms 4172 KB Output is correct
41 Correct 238 ms 22264 KB Output is correct
42 Correct 506 ms 38492 KB Output is correct
43 Correct 481 ms 38456 KB Output is correct
44 Correct 81 ms 15120 KB Output is correct
45 Correct 521 ms 46764 KB Output is correct
46 Correct 483 ms 46692 KB Output is correct
47 Correct 560 ms 46580 KB Output is correct
48 Correct 486 ms 46664 KB Output is correct
49 Correct 495 ms 46644 KB Output is correct
50 Correct 493 ms 46672 KB Output is correct
51 Correct 537 ms 46652 KB Output is correct
52 Correct 487 ms 46664 KB Output is correct
53 Correct 490 ms 46632 KB Output is correct
54 Correct 486 ms 46632 KB Output is correct
55 Correct 502 ms 46908 KB Output is correct
56 Correct 512 ms 46736 KB Output is correct
57 Correct 495 ms 46656 KB Output is correct
58 Correct 515 ms 46696 KB Output is correct
59 Correct 78 ms 16840 KB Output is correct
60 Correct 493 ms 46740 KB Output is correct
61 Correct 452 ms 46524 KB Output is correct
62 Correct 132 ms 18356 KB Output is correct
63 Correct 95 ms 17232 KB Output is correct
64 Correct 103 ms 18304 KB Output is correct
65 Correct 103 ms 18360 KB Output is correct
66 Correct 113 ms 17336 KB Output is correct
67 Correct 81 ms 16756 KB Output is correct
68 Correct 108 ms 18284 KB Output is correct
69 Correct 103 ms 16812 KB Output is correct
70 Correct 110 ms 18316 KB Output is correct
71 Correct 85 ms 16764 KB Output is correct
72 Correct 573 ms 44056 KB Output is correct
73 Correct 809 ms 61476 KB Output is correct
74 Correct 807 ms 61400 KB Output is correct
75 Correct 858 ms 61496 KB Output is correct
76 Correct 829 ms 61388 KB Output is correct
77 Correct 833 ms 61528 KB Output is correct
78 Correct 842 ms 61392 KB Output is correct
79 Correct 787 ms 61420 KB Output is correct
80 Correct 854 ms 61380 KB Output is correct
81 Correct 799 ms 61368 KB Output is correct
82 Correct 780 ms 61392 KB Output is correct
83 Correct 793 ms 61324 KB Output is correct
84 Correct 802 ms 61444 KB Output is correct
85 Correct 814 ms 61576 KB Output is correct
86 Correct 813 ms 61428 KB Output is correct
87 Correct 787 ms 61460 KB Output is correct
88 Correct 847 ms 61360 KB Output is correct
89 Correct 306 ms 33796 KB Output is correct
90 Correct 815 ms 61372 KB Output is correct
91 Correct 742 ms 61048 KB Output is correct
92 Correct 364 ms 34708 KB Output is correct
93 Correct 417 ms 58652 KB Output is correct
94 Correct 340 ms 34612 KB Output is correct
95 Correct 319 ms 34816 KB Output is correct
96 Correct 475 ms 61044 KB Output is correct
97 Correct 365 ms 36932 KB Output is correct
98 Correct 326 ms 34612 KB Output is correct
99 Correct 343 ms 36892 KB Output is correct
100 Correct 327 ms 34820 KB Output is correct