oj.uz

Submission #151664

# Submission time Handle Problem Language Result Execution time Memory
151664 2019-09-04T04:12:57 Z nvmdava Evacuation plan (IZhO18_plan) C++17
100 / 100
 626 ms 37992 KB 
#include <bits/stdc++.h>
using namespace std;
#define N 100002
#define ff first
#define ss second
#define ll long long
 
int d[N], n, m;
vector<pair<int, int> > adj[N];
 
priority_queue<pair<int, int> > pq;
vector<int> dis;
 
vector<pair<int, int> > plist[N];
bool in[N];
int p[N];
vector<int> group[N];
 
int find(int v){
	return v == p[v] ? v : p[v] = find(p[v]);
}
 
void merge(int v, int u, int dre){
	v = find(v);
	u = find(u);
	if(v == u) return;
	if(group[v].size() > group[u].size()) swap(v, u);
	p[v] = u;
 
	for(int& x : group[v]){
		while(plist[x].back().ff == dre)
			plist[x].pop_back();
		plist[x].push_back({dre, u});
		group[u].push_back(x);
	}
	group[v].clear();
}
 
int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	 
	mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
	
	memset(d, 0x3f, sizeof d);
	cin>>n>>m;
	for(int i = 1; i <= n; i++){
		plist[i].push_back({0x3f3f3f3f, i});
		p[i] = i;
		group[i].push_back(i);
	}
 
	while(m--){
		int v, u, w;
		cin>>v>>u>>w;
		adj[v].push_back({u, w});
		adj[u].push_back({v, w});
	}
 
	cin>>m;
	while(m--){
		int v;
		cin>>v;
		d[v] = 0;
		pq.push({0, v});
	}
 
	while(!pq.empty()){
		int v = pq.top().ss;
		int dd = pq.top().ff;
		pq.pop();
		if(dd != -d[v]) continue;
		for(auto& x : adj[v]){
			if(d[x.ff] > x.ss - dd){
				d[x.ff] = x.ss - dd;
				pq.push({-d[x.ff], x.ff});
			}
		}
	}
 
	for(int i = 1; i <= n; i++)
		dis.push_back(i);
	
	sort(dis.begin(), dis.end(), [](const int& lhs, const int& rhs){
		return d[lhs] > d[rhs];
	});
 
	for(auto& x : dis){
		in[x] = 1;
		for(auto& y : adj[x])
			if(in[y.ff]) merge(x, y.ff, d[x]);
	}
 
	cin>>m;
	while(m--){
		int v, u;
		cin>>v>>u;
		int i1 = plist[v].size() - 1, i2 = plist[u].size() - 1;
		while(plist[v][i1].ss == plist[u][i2].ss){
			i1--; i2--;
		}
		i1++;
		i2++;
		
		cout<<min(plist[v][i1].ff, plist[u][i2].ff)<<'\n';
	}
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 7800 KB Output is correct
2 Correct 9 ms 7928 KB Output is correct
3 Correct 9 ms 7928 KB Output is correct
4 Correct 8 ms 7800 KB Output is correct
5 Correct 9 ms 7928 KB Output is correct
6 Correct 9 ms 7932 KB Output is correct
7 Correct 8 ms 7800 KB Output is correct
8 Correct 8 ms 7800 KB Output is correct
9 Correct 9 ms 7928 KB Output is correct
10 Correct 9 ms 7928 KB Output is correct
11 Correct 9 ms 7928 KB Output is correct
12 Correct 9 ms 7928 KB Output is correct
13 Correct 9 ms 7928 KB Output is correct
14 Correct 9 ms 7988 KB Output is correct
15 Correct 9 ms 7928 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 7800 KB Output is correct
2 Correct 9 ms 7928 KB Output is correct
3 Correct 9 ms 7928 KB Output is correct
4 Correct 8 ms 7800 KB Output is correct
5 Correct 9 ms 7928 KB Output is correct
6 Correct 9 ms 7932 KB Output is correct
7 Correct 8 ms 7800 KB Output is correct
8 Correct 8 ms 7800 KB Output is correct
9 Correct 9 ms 7928 KB Output is correct
10 Correct 9 ms 7928 KB Output is correct
11 Correct 9 ms 7928 KB Output is correct
12 Correct 9 ms 7928 KB Output is correct
13 Correct 9 ms 7928 KB Output is correct
14 Correct 9 ms 7988 KB Output is correct
15 Correct 9 ms 7928 KB Output is correct
16 Correct 202 ms 19596 KB Output is correct
17 Correct 542 ms 31304 KB Output is correct
18 Correct 44 ms 10232 KB Output is correct
19 Correct 200 ms 20896 KB Output is correct
20 Correct 542 ms 31612 KB Output is correct
21 Correct 302 ms 23660 KB Output is correct
22 Correct 192 ms 19572 KB Output is correct
23 Correct 567 ms 31472 KB Output is correct
24 Correct 570 ms 31564 KB Output is correct
25 Correct 563 ms 31468 KB Output is correct
26 Correct 201 ms 20712 KB Output is correct
27 Correct 199 ms 20844 KB Output is correct
28 Correct 207 ms 20756 KB Output is correct
29 Correct 202 ms 20888 KB Output is correct
30 Correct 201 ms 21028 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 7800 KB Output is correct
2 Correct 8 ms 7800 KB Output is correct
3 Correct 8 ms 7800 KB Output is correct
4 Correct 8 ms 7800 KB Output is correct
5 Correct 8 ms 7800 KB Output is correct
6 Correct 8 ms 7800 KB Output is correct
7 Correct 8 ms 7804 KB Output is correct
8 Correct 8 ms 7800 KB Output is correct
9 Correct 8 ms 7800 KB Output is correct
10 Correct 8 ms 7800 KB Output is correct

Subtask #4
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 272 ms 23272 KB Output is correct
2 Correct 506 ms 31212 KB Output is correct
3 Correct 495 ms 31252 KB Output is correct
4 Correct 166 ms 20980 KB Output is correct
5 Correct 513 ms 31204 KB Output is correct
6 Correct 493 ms 31184 KB Output is correct
7 Correct 501 ms 31068 KB Output is correct
8 Correct 464 ms 31048 KB Output is correct
9 Correct 498 ms 31032 KB Output is correct
10 Correct 499 ms 31192 KB Output is correct
11 Correct 508 ms 31144 KB Output is correct
12 Correct 529 ms 31192 KB Output is correct
13 Correct 511 ms 31208 KB Output is correct
14 Correct 518 ms 31056 KB Output is correct
15 Correct 518 ms 31096 KB Output is correct
16 Correct 526 ms 31348 KB Output is correct
17 Correct 525 ms 31088 KB Output is correct
18 Correct 537 ms 31176 KB Output is correct
19 Correct 147 ms 18800 KB Output is correct
20 Correct 555 ms 31244 KB Output is correct
21 Correct 492 ms 30724 KB Output is correct
22 Correct 156 ms 20576 KB Output is correct
23 Correct 209 ms 25424 KB Output is correct
24 Correct 159 ms 20624 KB Output is correct
25 Correct 162 ms 20468 KB Output is correct
26 Correct 228 ms 26096 KB Output is correct
27 Correct 174 ms 21132 KB Output is correct
28 Correct 162 ms 20588 KB Output is correct
29 Correct 168 ms 20980 KB Output is correct
30 Correct 158 ms 20604 KB Output is correct
31 Correct 156 ms 20988 KB Output is correct

Subtask #5
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 8 ms 7800 KB Output is correct
2 Correct 9 ms 7928 KB Output is correct
3 Correct 9 ms 7928 KB Output is correct
4 Correct 8 ms 7800 KB Output is correct
5 Correct 9 ms 7928 KB Output is correct
6 Correct 9 ms 7932 KB Output is correct
7 Correct 8 ms 7800 KB Output is correct
8 Correct 8 ms 7800 KB Output is correct
9 Correct 9 ms 7928 KB Output is correct
10 Correct 9 ms 7928 KB Output is correct
11 Correct 9 ms 7928 KB Output is correct
12 Correct 9 ms 7928 KB Output is correct
13 Correct 9 ms 7928 KB Output is correct
14 Correct 9 ms 7988 KB Output is correct
15 Correct 9 ms 7928 KB Output is correct
16 Correct 202 ms 19596 KB Output is correct
17 Correct 542 ms 31304 KB Output is correct
18 Correct 44 ms 10232 KB Output is correct
19 Correct 200 ms 20896 KB Output is correct
20 Correct 542 ms 31612 KB Output is correct
21 Correct 302 ms 23660 KB Output is correct
22 Correct 192 ms 19572 KB Output is correct
23 Correct 567 ms 31472 KB Output is correct
24 Correct 570 ms 31564 KB Output is correct
25 Correct 563 ms 31468 KB Output is correct
26 Correct 201 ms 20712 KB Output is correct
27 Correct 199 ms 20844 KB Output is correct
28 Correct 207 ms 20756 KB Output is correct
29 Correct 202 ms 20888 KB Output is correct
30 Correct 201 ms 21028 KB Output is correct
31 Correct 8 ms 7800 KB Output is correct
32 Correct 8 ms 7800 KB Output is correct
33 Correct 8 ms 7800 KB Output is correct
34 Correct 8 ms 7800 KB Output is correct
35 Correct 8 ms 7800 KB Output is correct
36 Correct 8 ms 7800 KB Output is correct
37 Correct 8 ms 7804 KB Output is correct
38 Correct 8 ms 7800 KB Output is correct
39 Correct 8 ms 7800 KB Output is correct
40 Correct 8 ms 7800 KB Output is correct
41 Correct 272 ms 23272 KB Output is correct
42 Correct 506 ms 31212 KB Output is correct
43 Correct 495 ms 31252 KB Output is correct
44 Correct 166 ms 20980 KB Output is correct
45 Correct 513 ms 31204 KB Output is correct
46 Correct 493 ms 31184 KB Output is correct
47 Correct 501 ms 31068 KB Output is correct
48 Correct 464 ms 31048 KB Output is correct
49 Correct 498 ms 31032 KB Output is correct
50 Correct 499 ms 31192 KB Output is correct
51 Correct 508 ms 31144 KB Output is correct
52 Correct 529 ms 31192 KB Output is correct
53 Correct 511 ms 31208 KB Output is correct
54 Correct 518 ms 31056 KB Output is correct
55 Correct 518 ms 31096 KB Output is correct
56 Correct 526 ms 31348 KB Output is correct
57 Correct 525 ms 31088 KB Output is correct
58 Correct 537 ms 31176 KB Output is correct
59 Correct 147 ms 18800 KB Output is correct
60 Correct 555 ms 31244 KB Output is correct
61 Correct 492 ms 30724 KB Output is correct
62 Correct 156 ms 20576 KB Output is correct
63 Correct 209 ms 25424 KB Output is correct
64 Correct 159 ms 20624 KB Output is correct
65 Correct 162 ms 20468 KB Output is correct
66 Correct 228 ms 26096 KB Output is correct
67 Correct 174 ms 21132 KB Output is correct
68 Correct 162 ms 20588 KB Output is correct
69 Correct 168 ms 20980 KB Output is correct
70 Correct 158 ms 20604 KB Output is correct
71 Correct 156 ms 20988 KB Output is correct
72 Correct 306 ms 23936 KB Output is correct
73 Correct 576 ms 31808 KB Output is correct
74 Correct 589 ms 36804 KB Output is correct
75 Correct 595 ms 37668 KB Output is correct
76 Correct 626 ms 37652 KB Output is correct
77 Correct 581 ms 37660 KB Output is correct
78 Correct 581 ms 37692 KB Output is correct
79 Correct 581 ms 37452 KB Output is correct
80 Correct 603 ms 37228 KB Output is correct
81 Correct 584 ms 37668 KB Output is correct
82 Correct 580 ms 37940 KB Output is correct
83 Correct 568 ms 37992 KB Output is correct
84 Correct 557 ms 37116 KB Output is correct
85 Correct 559 ms 36668 KB Output is correct
86 Correct 563 ms 36932 KB Output is correct
87 Correct 571 ms 37536 KB Output is correct
88 Correct 568 ms 37164 KB Output is correct
89 Correct 196 ms 21788 KB Output is correct
90 Correct 534 ms 36460 KB Output is correct
91 Correct 534 ms 36584 KB Output is correct
92 Correct 208 ms 23160 KB Output is correct
93 Correct 252 ms 28448 KB Output is correct
94 Correct 207 ms 23012 KB Output is correct
95 Correct 198 ms 23144 KB Output is correct
96 Correct 279 ms 28812 KB Output is correct
97 Correct 216 ms 23852 KB Output is correct
98 Correct 209 ms 23040 KB Output is correct
99 Correct 217 ms 23796 KB Output is correct
100 Correct 206 ms 23140 KB Output is correct