oj.uz

Submission #712402

# Submission time Handle Problem Language Result Execution time Memory
712402 2023-03-18T18:23:52 Z Antekb Construction of Highway (JOI18_construction) C++17
16 / 100
 2000 ms 26456 KB 
#include<bits/stdc++.h>

#define st first
#define nd second
#define pb push_back
#define eb emplace_back
#define mp make_pair
#define pp pop_back
#define all(x) (x).begin(), (x).end()

using namespace std;

void debug(){cerr<<"\n";}
template<typename H, typename... T>
void debug(H h, T... t){
	cerr<<h;
	if(sizeof...(t))cerr<<", ";
	debug(t...);
}
#define deb(x...) cerr<<#x<<" = ";debug(x);

using ll = long long;
using pii = pair<int, int>;
using vi = vector<int>;
using vii = vector<pii>;
mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());

const int N=1e5+5;
vi E[N];
int pre[N], sz[N], par[N], sci[N], dep[N], val[N], co[N];
int wsk;
void dfs_sz(int v){
	for(int u:E[v]){
		if(u!=par[v]){
			par[u]=v;
			dep[u]=dep[v]+1;
			dfs_sz(u);
			sz[v]+=sz[u];
		}
	}
	sz[v]+=1;
	for(int &u:E[v])if(u==par[v])swap(u, E[v].back());
	if(v!=1)E[v].pp();
	for(int &u:E[v])if(sz[u]>sz[E[v][0]])swap(u, E[v][0]);
	//deb(v, E[v].size());
}
void dfs(int v){
	co[wsk]=v;
	pre[v]=wsk++;
	for(int u:E[v]){
		//deb(v, u);
		if(u==E[v][0])sci[wsk]=sci[pre[v]];
		else{
			sci[wsk]=wsk;
			//deb(v, wsk);
		}
		dfs(u);
	}
}
set<int> S[N];
ll calc(int v){
	vector<pair<int, int> > V;
	v=pre[v];
	int t=val[v];
	bool czy=1;
	while(true){
		int u=sci[v];
		//deb(v, u, S[u].size());
		if(S[u].size()){
			//deb(*S[u].begin());
		}
		vector<pair<int, int> > V2;
		int prv=u-1;
		while(prv<v-czy){
			//deb("a");
			//assert(S[u].size());
			int a=*S[u].begin();
			if(a>v-czy){
				V2.eb(v-czy-prv, val[a]);
			}
			else{
				V2.eb(a-prv, val[a]);
				S[u].erase(a);
			}
			prv=a;
		}
		reverse(all(V2));
		for(pii &i:V2)V.pb(i);
		S[u].insert(v);
		val[v]=t;
		if(u==0)break;
		v=pre[par[co[u]]];
		czy=0;
	}
	reverse(all(V));
	//deb(V.size());
	for(pii i:V){
		//deb(i.st, i.nd);
	}
	ll ans=0;
	for(int i=0; i<V.size(); i++){
		for(int j=0; j<i; j++){
			if(V[j].nd>V[i].nd)ans+=V[j].st*1ll*V[i].st;
		}
	}
	return ans;
}
int main(){
	//ios_base::sync_with_stdio(0);cin.tie(0);
	int n;
	cin>>n;
	vi V(n);
	for(int &i:V)cin>>i;
	vector<pii> edg(n-1);
	for(pii &i:edg)cin>>i.st>>i.nd, E[i.st].pb(i.nd), E[i.nd].pb(i.st);
	dfs_sz(1);
	dfs(1);
	for(int i=1; i<=n; i++){
		//deb(i, pre[i], par[i], val[i], sci[pre[i]], sz[i]);
	}
	S[0].insert(0);
	for(int i=1; i<=n; i++){
		val[pre[i]]=V[i-1];
	}
	for(pii i:edg){
		cout<<calc(i.nd)<<"\n";
	}
}

Compilation message

construction.cpp: In function 'll calc(int)':
construction.cpp:97:10: warning: variable 'i' set but not used [-Wunused-but-set-variable]
   97 |  for(pii i:V){
      |          ^
construction.cpp:101:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
  101 |  for(int i=0; i<V.size(); i++){
      |               ~^~~~~~~~~

Subtask #1
7.0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7380 KB Output is correct
2 Correct 4 ms 7380 KB Output is correct
3 Correct 4 ms 7368 KB Output is correct
4 Correct 5 ms 7368 KB Output is correct
5 Correct 5 ms 7380 KB Output is correct
6 Correct 5 ms 7380 KB Output is correct
7 Correct 5 ms 7452 KB Output is correct
8 Correct 6 ms 7380 KB Output is correct
9 Correct 5 ms 7380 KB Output is correct
10 Correct 5 ms 7368 KB Output is correct
11 Correct 7 ms 7508 KB Output is correct
12 Correct 7 ms 7368 KB Output is correct
13 Correct 5 ms 7372 KB Output is correct
14 Correct 5 ms 7380 KB Output is correct
15 Correct 5 ms 7372 KB Output is correct
16 Correct 5 ms 7380 KB Output is correct
17 Correct 5 ms 7380 KB Output is correct
18 Correct 5 ms 7380 KB Output is correct
19 Correct 4 ms 7368 KB Output is correct
20 Correct 4 ms 7392 KB Output is correct
21 Correct 5 ms 7380 KB Output is correct
22 Correct 4 ms 7380 KB Output is correct
23 Correct 5 ms 7368 KB Output is correct
24 Correct 5 ms 7380 KB Output is correct
25 Correct 5 ms 7380 KB Output is correct
26 Correct 5 ms 7380 KB Output is correct
27 Correct 5 ms 7460 KB Output is correct
28 Correct 4 ms 7368 KB Output is correct
29 Correct 4 ms 7380 KB Output is correct
30 Correct 5 ms 7380 KB Output is correct
31 Correct 5 ms 7380 KB Output is correct
32 Correct 5 ms 7380 KB Output is correct
33 Correct 5 ms 7380 KB Output is correct
34 Correct 5 ms 7364 KB Output is correct
35 Correct 4 ms 7380 KB Output is correct
36 Correct 4 ms 7380 KB Output is correct
37 Correct 5 ms 7444 KB Output is correct
38 Correct 5 ms 7372 KB Output is correct
39 Correct 5 ms 7380 KB Output is correct
40 Correct 5 ms 7380 KB Output is correct
41 Correct 5 ms 7380 KB Output is correct
42 Correct 5 ms 7372 KB Output is correct
43 Correct 4 ms 7364 KB Output is correct
44 Correct 4 ms 7380 KB Output is correct

Subtask #2
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7380 KB Output is correct
2 Correct 4 ms 7380 KB Output is correct
3 Correct 4 ms 7368 KB Output is correct
4 Correct 5 ms 7368 KB Output is correct
5 Correct 5 ms 7380 KB Output is correct
6 Correct 5 ms 7380 KB Output is correct
7 Correct 5 ms 7452 KB Output is correct
8 Correct 6 ms 7380 KB Output is correct
9 Correct 5 ms 7380 KB Output is correct
10 Correct 5 ms 7368 KB Output is correct
11 Correct 7 ms 7508 KB Output is correct
12 Correct 7 ms 7368 KB Output is correct
13 Correct 5 ms 7372 KB Output is correct
14 Correct 5 ms 7380 KB Output is correct
15 Correct 5 ms 7372 KB Output is correct
16 Correct 5 ms 7380 KB Output is correct
17 Correct 5 ms 7380 KB Output is correct
18 Correct 5 ms 7380 KB Output is correct
19 Correct 4 ms 7368 KB Output is correct
20 Correct 4 ms 7392 KB Output is correct
21 Correct 5 ms 7380 KB Output is correct
22 Correct 4 ms 7380 KB Output is correct
23 Correct 5 ms 7368 KB Output is correct
24 Correct 5 ms 7380 KB Output is correct
25 Correct 5 ms 7380 KB Output is correct
26 Correct 5 ms 7380 KB Output is correct
27 Correct 5 ms 7460 KB Output is correct
28 Correct 4 ms 7368 KB Output is correct
29 Correct 4 ms 7380 KB Output is correct
30 Correct 5 ms 7380 KB Output is correct
31 Correct 5 ms 7380 KB Output is correct
32 Correct 5 ms 7380 KB Output is correct
33 Correct 5 ms 7380 KB Output is correct
34 Correct 5 ms 7364 KB Output is correct
35 Correct 4 ms 7380 KB Output is correct
36 Correct 4 ms 7380 KB Output is correct
37 Correct 5 ms 7444 KB Output is correct
38 Correct 5 ms 7372 KB Output is correct
39 Correct 5 ms 7380 KB Output is correct
40 Correct 5 ms 7380 KB Output is correct
41 Correct 5 ms 7380 KB Output is correct
42 Correct 5 ms 7372 KB Output is correct
43 Correct 4 ms 7364 KB Output is correct
44 Correct 4 ms 7380 KB Output is correct
45 Correct 6 ms 7380 KB Output is correct
46 Correct 11 ms 7800 KB Output is correct
47 Correct 11 ms 7748 KB Output is correct
48 Correct 11 ms 7892 KB Output is correct
49 Correct 12 ms 8020 KB Output is correct
50 Correct 9 ms 8020 KB Output is correct
51 Correct 12 ms 8020 KB Output is correct
52 Correct 10 ms 8016 KB Output is correct
53 Correct 14 ms 8020 KB Output is correct
54 Correct 14 ms 8140 KB Output is correct
55 Correct 14 ms 8020 KB Output is correct
56 Correct 9 ms 7932 KB Output is correct
57 Correct 16 ms 7764 KB Output is correct
58 Correct 13 ms 7840 KB Output is correct
59 Correct 13 ms 7764 KB Output is correct
60 Correct 17 ms 7756 KB Output is correct
61 Correct 9 ms 7892 KB Output is correct
62 Correct 9 ms 7932 KB Output is correct
63 Correct 9 ms 7892 KB Output is correct
64 Correct 11 ms 7764 KB Output is correct
65 Correct 10 ms 7764 KB Output is correct
66 Correct 11 ms 7804 KB Output is correct
67 Correct 11 ms 7764 KB Output is correct
68 Correct 8 ms 8016 KB Output is correct
69 Correct 11 ms 8016 KB Output is correct
70 Correct 15 ms 8032 KB Output is correct
71 Correct 9 ms 7888 KB Output is correct
72 Correct 13 ms 7892 KB Output is correct
73 Correct 12 ms 7768 KB Output is correct
74 Correct 11 ms 7932 KB Output is correct
75 Correct 9 ms 7892 KB Output is correct
76 Correct 8 ms 7884 KB Output is correct
77 Correct 8 ms 7764 KB Output is correct
78 Correct 10 ms 7784 KB Output is correct
79 Correct 9 ms 7764 KB Output is correct
80 Correct 9 ms 7764 KB Output is correct
81 Correct 10 ms 7888 KB Output is correct
82 Correct 10 ms 7836 KB Output is correct
83 Correct 9 ms 7824 KB Output is correct
84 Correct 9 ms 7892 KB Output is correct
85 Correct 9 ms 7764 KB Output is correct
86 Correct 9 ms 7760 KB Output is correct

Subtask #3
0 / 84.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 7380 KB Output is correct
2 Correct 4 ms 7380 KB Output is correct
3 Correct 4 ms 7368 KB Output is correct
4 Correct 5 ms 7368 KB Output is correct
5 Correct 5 ms 7380 KB Output is correct
6 Correct 5 ms 7380 KB Output is correct
7 Correct 5 ms 7452 KB Output is correct
8 Correct 6 ms 7380 KB Output is correct
9 Correct 5 ms 7380 KB Output is correct
10 Correct 5 ms 7368 KB Output is correct
11 Correct 7 ms 7508 KB Output is correct
12 Correct 7 ms 7368 KB Output is correct
13 Correct 5 ms 7372 KB Output is correct
14 Correct 5 ms 7380 KB Output is correct
15 Correct 5 ms 7372 KB Output is correct
16 Correct 5 ms 7380 KB Output is correct
17 Correct 5 ms 7380 KB Output is correct
18 Correct 5 ms 7380 KB Output is correct
19 Correct 4 ms 7368 KB Output is correct
20 Correct 4 ms 7392 KB Output is correct
21 Correct 5 ms 7380 KB Output is correct
22 Correct 4 ms 7380 KB Output is correct
23 Correct 5 ms 7368 KB Output is correct
24 Correct 5 ms 7380 KB Output is correct
25 Correct 5 ms 7380 KB Output is correct
26 Correct 5 ms 7380 KB Output is correct
27 Correct 5 ms 7460 KB Output is correct
28 Correct 4 ms 7368 KB Output is correct
29 Correct 4 ms 7380 KB Output is correct
30 Correct 5 ms 7380 KB Output is correct
31 Correct 5 ms 7380 KB Output is correct
32 Correct 5 ms 7380 KB Output is correct
33 Correct 5 ms 7380 KB Output is correct
34 Correct 5 ms 7364 KB Output is correct
35 Correct 4 ms 7380 KB Output is correct
36 Correct 4 ms 7380 KB Output is correct
37 Correct 5 ms 7444 KB Output is correct
38 Correct 5 ms 7372 KB Output is correct
39 Correct 5 ms 7380 KB Output is correct
40 Correct 5 ms 7380 KB Output is correct
41 Correct 5 ms 7380 KB Output is correct
42 Correct 5 ms 7372 KB Output is correct
43 Correct 4 ms 7364 KB Output is correct
44 Correct 4 ms 7380 KB Output is correct
45 Correct 6 ms 7380 KB Output is correct
46 Correct 11 ms 7800 KB Output is correct
47 Correct 11 ms 7748 KB Output is correct
48 Correct 11 ms 7892 KB Output is correct
49 Correct 12 ms 8020 KB Output is correct
50 Correct 9 ms 8020 KB Output is correct
51 Correct 12 ms 8020 KB Output is correct
52 Correct 10 ms 8016 KB Output is correct
53 Correct 14 ms 8020 KB Output is correct
54 Correct 14 ms 8140 KB Output is correct
55 Correct 14 ms 8020 KB Output is correct
56 Correct 9 ms 7932 KB Output is correct
57 Correct 16 ms 7764 KB Output is correct
58 Correct 13 ms 7840 KB Output is correct
59 Correct 13 ms 7764 KB Output is correct
60 Correct 17 ms 7756 KB Output is correct
61 Correct 9 ms 7892 KB Output is correct
62 Correct 9 ms 7932 KB Output is correct
63 Correct 9 ms 7892 KB Output is correct
64 Correct 11 ms 7764 KB Output is correct
65 Correct 10 ms 7764 KB Output is correct
66 Correct 11 ms 7804 KB Output is correct
67 Correct 11 ms 7764 KB Output is correct
68 Correct 8 ms 8016 KB Output is correct
69 Correct 11 ms 8016 KB Output is correct
70 Correct 15 ms 8032 KB Output is correct
71 Correct 9 ms 7888 KB Output is correct
72 Correct 13 ms 7892 KB Output is correct
73 Correct 12 ms 7768 KB Output is correct
74 Correct 11 ms 7932 KB Output is correct
75 Correct 9 ms 7892 KB Output is correct
76 Correct 8 ms 7884 KB Output is correct
77 Correct 8 ms 7764 KB Output is correct
78 Correct 10 ms 7784 KB Output is correct
79 Correct 9 ms 7764 KB Output is correct
80 Correct 9 ms 7764 KB Output is correct
81 Correct 10 ms 7888 KB Output is correct
82 Correct 10 ms 7836 KB Output is correct
83 Correct 9 ms 7824 KB Output is correct
84 Correct 9 ms 7892 KB Output is correct
85 Correct 9 ms 7764 KB Output is correct
86 Correct 9 ms 7760 KB Output is correct
87 Correct 29 ms 8652 KB Output is correct
88 Correct 67 ms 11024 KB Output is correct
89 Correct 363 ms 19568 KB Output is correct
90 Correct 267 ms 19608 KB Output is correct
91 Correct 273 ms 19524 KB Output is correct
92 Correct 142 ms 24472 KB Output is correct
93 Correct 140 ms 24512 KB Output is correct
94 Correct 157 ms 24472 KB Output is correct
95 Correct 1220 ms 26040 KB Output is correct
96 Execution timed out 2078 ms 26456 KB Time limit exceeded
97 Halted 0 ms 0 KB -