oj.uz

Submission #525327

# Submission time Handle Problem Language Result Execution time Memory
525327 2022-02-11T10:15:24 Z Mr_Husanboy Evacuation plan (IZhO18_plan) C++14
100 / 100
 656 ms 60576 KB 
// Muallif: Mansuraliyev Husanboy Murotali o'g'li  >> NamPS

#include<bits/stdc++.h>

using namespace std;
#define ll long long
#define ios ios_base::sync_with_stdio(false); cin.tie(NULL); cout.tie(NULL)
#define all(a) a.begin(), a.end()
#define F first
#define S second
// 0-9 >> 48-57;    A-Z>>65-90   and   a-z>>97-122 respectively;	
int l[100005];
vector<pair<int,int>> g[100005];
set<int> st[100005];

void init(int n){
	for(int i=1;i<=n;i++) l[i]=i;
}

int get(int a){
	if(l[a]==a){
		return a;
	}
	return l[a]=get(l[a]);
}


void solve(){
	int n,m; cin>>n>>m;
	init(n);
	for(int i=0;i<m;i++){
		int u,v,w; cin>>u>>v>>w;
		g[u].push_back({v,w});g[v].push_back({u,w});
	}
	int dist[n+1];
	bool vis[n+1];
	for(int i=1;i<=n;i++) dist[i]=1e9,vis[i]=0;
	priority_queue<pair<int,int>> q;
	int k; cin>>k;while(k--){
		int x; cin>>x; dist[x]=0; q.push({0,x});
	}
	while(!q.empty()){
		int t=q.top().second; q.pop();
		if(vis[t]) continue; vis[t]=1;
		for(auto u:g[t]){
			if(dist[u.F]>dist[t]+u.S){
				dist[u.F]=dist[t]+u.S;
				q.push({-dist[u.F],u.F});
			}
		}
	}
	int qq; cin>>qq;
	for(int i=0;i<qq;i++){
		int x,y; cin>>x>>y; st[x].insert(i);st[y].insert(i);
	}
	vector<pair<int,pair<int,int>>> v;
	for(int i=1;i<=n;i++){
		for(auto u:g[i]){
			v.push_back({min(dist[i],dist[u.F]),{i,u.F}});
		}
	}
	sort(all(v));
	vector<int> ans(qq);
	reverse(all(v));
	for(int i=0;i<v.size();i++){
		int x=v[i].S.F,y=v[i].S.S,w=v[i].F;
		//cout<<x<<' '<<y<<' '<<w<<'\n';
		x=get(x),y=get(y);
		if(x==y) continue;
		if(st[x].size() < st[y].size())
			swap(x, y);
		for(auto u:st[y]){
			if(st[x].count(u)){
				ans[u]=w;
				st[x].erase(u);
			}else st[x].insert(u);
		}l[y]=x;
	}
	for(auto u:ans) cout<<u<<'\n';
}


int main(){
	ios; 
	//int t=1;   cin>>t; while(t--)
	solve();
}
/*
9 12
1 9 4
1 2 5
2 3 7
2 4 3
4 3 6
3 6 4
8 7 10
6 7 5
5 8 1
9 5 7
5 4 12
6 8 2
2
4 7
5
1 6
5 3
4 8
5 8
1 5
*/

Compilation message

plan.cpp: In function 'void solve()':
plan.cpp:44:3: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
   44 |   if(vis[t]) continue; vis[t]=1;
      |   ^~
plan.cpp:44:24: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
   44 |   if(vis[t]) continue; vis[t]=1;
      |                        ^~~
plan.cpp:65:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   65 |  for(int i=0;i<v.size();i++){
      |              ~^~~~~~~~~

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7244 KB Output is correct
2 Correct 6 ms 7504 KB Output is correct
3 Correct 6 ms 7536 KB Output is correct
4 Correct 5 ms 7364 KB Output is correct
5 Correct 5 ms 7628 KB Output is correct
6 Correct 5 ms 7516 KB Output is correct
7 Correct 4 ms 7364 KB Output is correct
8 Correct 4 ms 7372 KB Output is correct
9 Correct 5 ms 7548 KB Output is correct
10 Correct 5 ms 7528 KB Output is correct
11 Correct 5 ms 7492 KB Output is correct
12 Correct 6 ms 7504 KB Output is correct
13 Correct 5 ms 7500 KB Output is correct
14 Correct 5 ms 7500 KB Output is correct
15 Correct 5 ms 7504 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7244 KB Output is correct
2 Correct 6 ms 7504 KB Output is correct
3 Correct 6 ms 7536 KB Output is correct
4 Correct 5 ms 7364 KB Output is correct
5 Correct 5 ms 7628 KB Output is correct
6 Correct 5 ms 7516 KB Output is correct
7 Correct 4 ms 7364 KB Output is correct
8 Correct 4 ms 7372 KB Output is correct
9 Correct 5 ms 7548 KB Output is correct
10 Correct 5 ms 7528 KB Output is correct
11 Correct 5 ms 7492 KB Output is correct
12 Correct 6 ms 7504 KB Output is correct
13 Correct 5 ms 7500 KB Output is correct
14 Correct 5 ms 7500 KB Output is correct
15 Correct 5 ms 7504 KB Output is correct
16 Correct 234 ms 27636 KB Output is correct
17 Correct 648 ms 56096 KB Output is correct
18 Correct 44 ms 11936 KB Output is correct
19 Correct 180 ms 29088 KB Output is correct
20 Correct 615 ms 56084 KB Output is correct
21 Correct 347 ms 37672 KB Output is correct
22 Correct 151 ms 27292 KB Output is correct
23 Correct 656 ms 56212 KB Output is correct
24 Correct 608 ms 55976 KB Output is correct
25 Correct 639 ms 56220 KB Output is correct
26 Correct 208 ms 28980 KB Output is correct
27 Correct 178 ms 29040 KB Output is correct
28 Correct 182 ms 29128 KB Output is correct
29 Correct 178 ms 28992 KB Output is correct
30 Correct 174 ms 29024 KB Output is correct

Subtask #3
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7372 KB Output is correct
2 Correct 4 ms 7332 KB Output is correct
3 Correct 4 ms 7372 KB Output is correct
4 Correct 4 ms 7372 KB Output is correct
5 Correct 4 ms 7372 KB Output is correct
6 Correct 4 ms 7368 KB Output is correct
7 Correct 4 ms 7364 KB Output is correct
8 Correct 4 ms 7372 KB Output is correct
9 Correct 4 ms 7368 KB Output is correct
10 Correct 4 ms 7368 KB Output is correct

Subtask #4
19.0 / 19.0

# Verdict Execution time Memory Grader output
1 Correct 181 ms 21688 KB Output is correct
2 Correct 467 ms 44520 KB Output is correct
3 Correct 453 ms 44476 KB Output is correct
4 Correct 69 ms 16280 KB Output is correct
5 Correct 437 ms 44456 KB Output is correct
6 Correct 466 ms 44464 KB Output is correct
7 Correct 442 ms 44448 KB Output is correct
8 Correct 443 ms 44464 KB Output is correct
9 Correct 444 ms 44344 KB Output is correct
10 Correct 425 ms 44440 KB Output is correct
11 Correct 428 ms 44460 KB Output is correct
12 Correct 435 ms 44420 KB Output is correct
13 Correct 423 ms 44372 KB Output is correct
14 Correct 448 ms 44472 KB Output is correct
15 Correct 437 ms 45228 KB Output is correct
16 Correct 430 ms 44408 KB Output is correct
17 Correct 455 ms 44456 KB Output is correct
18 Correct 451 ms 44536 KB Output is correct
19 Correct 66 ms 16108 KB Output is correct
20 Correct 511 ms 44452 KB Output is correct
21 Correct 388 ms 44636 KB Output is correct
22 Correct 82 ms 18480 KB Output is correct
23 Correct 88 ms 16696 KB Output is correct
24 Correct 116 ms 18368 KB Output is correct
25 Correct 78 ms 18784 KB Output is correct
26 Correct 85 ms 16680 KB Output is correct
27 Correct 68 ms 16188 KB Output is correct
28 Correct 83 ms 18356 KB Output is correct
29 Correct 68 ms 16120 KB Output is correct
30 Correct 83 ms 18348 KB Output is correct
31 Correct 68 ms 16104 KB Output is correct

Subtask #5
46.0 / 46.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7244 KB Output is correct
2 Correct 6 ms 7504 KB Output is correct
3 Correct 6 ms 7536 KB Output is correct
4 Correct 5 ms 7364 KB Output is correct
5 Correct 5 ms 7628 KB Output is correct
6 Correct 5 ms 7516 KB Output is correct
7 Correct 4 ms 7364 KB Output is correct
8 Correct 4 ms 7372 KB Output is correct
9 Correct 5 ms 7548 KB Output is correct
10 Correct 5 ms 7528 KB Output is correct
11 Correct 5 ms 7492 KB Output is correct
12 Correct 6 ms 7504 KB Output is correct
13 Correct 5 ms 7500 KB Output is correct
14 Correct 5 ms 7500 KB Output is correct
15 Correct 5 ms 7504 KB Output is correct
16 Correct 234 ms 27636 KB Output is correct
17 Correct 648 ms 56096 KB Output is correct
18 Correct 44 ms 11936 KB Output is correct
19 Correct 180 ms 29088 KB Output is correct
20 Correct 615 ms 56084 KB Output is correct
21 Correct 347 ms 37672 KB Output is correct
22 Correct 151 ms 27292 KB Output is correct
23 Correct 656 ms 56212 KB Output is correct
24 Correct 608 ms 55976 KB Output is correct
25 Correct 639 ms 56220 KB Output is correct
26 Correct 208 ms 28980 KB Output is correct
27 Correct 178 ms 29040 KB Output is correct
28 Correct 182 ms 29128 KB Output is correct
29 Correct 178 ms 28992 KB Output is correct
30 Correct 174 ms 29024 KB Output is correct
31 Correct 4 ms 7372 KB Output is correct
32 Correct 4 ms 7332 KB Output is correct
33 Correct 4 ms 7372 KB Output is correct
34 Correct 4 ms 7372 KB Output is correct
35 Correct 4 ms 7372 KB Output is correct
36 Correct 4 ms 7368 KB Output is correct
37 Correct 4 ms 7364 KB Output is correct
38 Correct 4 ms 7372 KB Output is correct
39 Correct 4 ms 7368 KB Output is correct
40 Correct 4 ms 7368 KB Output is correct
41 Correct 181 ms 21688 KB Output is correct
42 Correct 467 ms 44520 KB Output is correct
43 Correct 453 ms 44476 KB Output is correct
44 Correct 69 ms 16280 KB Output is correct
45 Correct 437 ms 44456 KB Output is correct
46 Correct 466 ms 44464 KB Output is correct
47 Correct 442 ms 44448 KB Output is correct
48 Correct 443 ms 44464 KB Output is correct
49 Correct 444 ms 44344 KB Output is correct
50 Correct 425 ms 44440 KB Output is correct
51 Correct 428 ms 44460 KB Output is correct
52 Correct 435 ms 44420 KB Output is correct
53 Correct 423 ms 44372 KB Output is correct
54 Correct 448 ms 44472 KB Output is correct
55 Correct 437 ms 45228 KB Output is correct
56 Correct 430 ms 44408 KB Output is correct
57 Correct 455 ms 44456 KB Output is correct
58 Correct 451 ms 44536 KB Output is correct
59 Correct 66 ms 16108 KB Output is correct
60 Correct 511 ms 44452 KB Output is correct
61 Correct 388 ms 44636 KB Output is correct
62 Correct 82 ms 18480 KB Output is correct
63 Correct 88 ms 16696 KB Output is correct
64 Correct 116 ms 18368 KB Output is correct
65 Correct 78 ms 18784 KB Output is correct
66 Correct 85 ms 16680 KB Output is correct
67 Correct 68 ms 16188 KB Output is correct
68 Correct 83 ms 18356 KB Output is correct
69 Correct 68 ms 16120 KB Output is correct
70 Correct 83 ms 18348 KB Output is correct
71 Correct 68 ms 16104 KB Output is correct
72 Correct 376 ms 40076 KB Output is correct
73 Correct 617 ms 56924 KB Output is correct
74 Correct 618 ms 57040 KB Output is correct
75 Correct 642 ms 57016 KB Output is correct
76 Correct 620 ms 56908 KB Output is correct
77 Correct 633 ms 56932 KB Output is correct
78 Correct 607 ms 56804 KB Output is correct
79 Correct 626 ms 56844 KB Output is correct
80 Correct 633 ms 56848 KB Output is correct
81 Correct 608 ms 56884 KB Output is correct
82 Correct 631 ms 57096 KB Output is correct
83 Correct 632 ms 56772 KB Output is correct
84 Correct 644 ms 56868 KB Output is correct
85 Correct 611 ms 56988 KB Output is correct
86 Correct 637 ms 56928 KB Output is correct
87 Correct 644 ms 56796 KB Output is correct
88 Correct 622 ms 56836 KB Output is correct
89 Correct 232 ms 29568 KB Output is correct
90 Correct 631 ms 56956 KB Output is correct
91 Correct 586 ms 57380 KB Output is correct
92 Correct 221 ms 30568 KB Output is correct
93 Correct 331 ms 55512 KB Output is correct
94 Correct 225 ms 30500 KB Output is correct
95 Correct 224 ms 30488 KB Output is correct
96 Correct 390 ms 60576 KB Output is correct
97 Correct 257 ms 31560 KB Output is correct
98 Correct 239 ms 30536 KB Output is correct
99 Correct 264 ms 31528 KB Output is correct
100 Correct 230 ms 30572 KB Output is correct