oj.uz

Submission #552155

# Submission time Handle Problem Language Result Execution time Memory
552155 2022-04-22T14:17:22 Z Antekb Reconstruction Project (JOI22_reconstruction) C++14
31 / 100
 5000 ms 28980 KB 
#include<bits/stdc++.h>
//#pragma GCC optimize("trapv")
#define st first
#define nd second
#define pb(x) push_back(x)
#define pp(x) pop_back(x)
#define mp(a, b) make_pair(a, b)
#define all(x) (x).begin(), (x).end()
#define rev(x) reverse(all(x))
#define sor(x) sort(all(x))
#define sz(x) (int)(x).size()
#define rsz(x) resize(x)

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);

///~~~~~~~~~~~~~~~~~~~~~~~~~

typedef long long ll;
typedef long double ld;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef vector<int> vi;
typedef vector<pii > vii;
typedef vector<ll> vl;
typedef vector<pll> vll;
typedef string str;

#define BOOST ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);

//mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());

const int N=1e5+5, INF=1e9+5, mod=1e9+7;
vector<pair<int, pii> > edg;
int r[N], siz[N];
vector<pair<pii, pair<pii, int> > > Q;
vector<pii> upd;
vector<bool> ans;
int find(int v){
	if(r[v]==v)return v;
	return find(r[v]);
}
void Union(int a, int b){
	a=find(a);
	b=find(b);
	if(a==b){
		upd.pb(mp(0, 0));
		return;
	}
	//if(siz[a]>siz[b])swap(a, b);
	r[a]=b;
	//siz[b]+=siz[a];
	upd.pb(mp(a, b));
}
void Union2(int a, int b){
	r[a]=a;
	siz[b]-=siz[a];
	upd.pp();
}
int L1[N], R1[N], L2[N], R2[N];//[L1, R1] - pierwszy na prawo, ktory moze byc zamiast tej kraw
int K=200;
void solve(){
	sort(Q.begin(), Q.end(), [](pair<pii, pair<pii, int> > a, pair<pii, pair<pii, int> >  b){
		if(a.st.st/K!=b.st.st/K)return a.st.st<b.st.st;
		return a.st.nd<b.st.nd;
	});
	int a=K;
	int b=a;
	vector<pair<pii, pair<pii, int> > > Q2;
	for(int i=0; i<Q.size(); i++){
		if(i && Q[i].st.st/K!=Q[i-1].st.st/K){
			while(upd.size())Union2(upd.back().st, upd.back().nd);
			//for(int j=1; j<=4; j++)assert(r[j]==j && siz[j]==1);
			a=K*(Q[i].st.st/K+1);
			b=a;
		}
		//cout<<upd.size();
		if(b-1>Q[i].st.nd){
			Q2.pb(Q[i]);
			continue;
		}
		while(b<=Q[i].st.nd){
			Union(edg[b].nd.st, edg[b].nd.nd);
			b++;
		}
		for(int j=a-1; j>=Q[i].st.st; j--){
			Union(edg[j].nd.st,edg[j].nd.nd);
		}
		ans[Q[i].nd.nd]=(find(Q[i].nd.st.st)==find(Q[i].nd.st.nd));
		//cout<<upd.size();
		for(int j=Q[i].st.st; j<a; j++){
			Union2(upd.back().st, upd.back().nd);
		}
	}
	while(upd.size())Union2(upd.back().st, upd.back().nd);
	for(auto i:Q2){
		for(int j=i.st.st; j<=i.st.nd; j++){
			Union(edg[j].nd.st, edg[j].nd.nd);
		}
		ans[i.nd.nd]=(find(i.nd.st.st)==find(i.nd.st.nd));		
		for(int j=i.st.nd; j>=i.st.st; j--){
			Union2(upd.back().st, upd.back().nd);
		}
	}
}
void rec(){
	Q.clear();
	for(int i=0; i<edg.size(); i++){
		int m=(L1[i]+R1[i]+1)/2;
		if(R1[i]==-1)m=-1;
		if(m!=-1)Q.pb(mp(mp(m, i-1), mp(edg[i].nd, 2*i)));
		m=(L2[i]+R2[i])/2;
		if(m!=edg.size())Q.pb(mp(mp(i+1, m), mp(edg[i].nd, 2*i+1)));
	}
	solve();
	for(int i=0; i<edg.size(); i++){
		int m=(L1[i]+R1[i]+1)/2;
		if(R1[i]==-1)m=-1;
		if(m!=-1){
			if(ans[2*i])L1[i]=m;
			else R1[i]=m-1;
		}
		m=(L2[i]+R2[i])/2;
		if(m!=edg.size()){
			if(ans[2*i+1])R2[i]=m;
			else L2[i]=m+1;
		}
	}
}
int main(){
	BOOST;
	int n, m;
	cin>>n>>m;
	edg.rsz(m);
	for(auto &i:edg)cin>>i.nd.st>>i.nd.nd>>i.st;
	sor(edg);
	for(int i=1; i<=n; i++)siz[i]=1, r[i]=i;
	ans.rsz(2*m);
	for(int i=0; i<m; i++){
		L1[i]=-1;
		R1[i]=i-1;
		L2[i]=i+1;
		R2[i]=m;
	}
	for(int i=0; i<12; i++)rec();
	/*for(int i=0; i<m; i++){
		cout<<edg[i].nd.st<<" "<<edg[i].nd.nd<<" "<<edg[i].st<<"\n";
		cout<<L1[i]<<" "<<R1[i]<<" "<<L2[i]<<" "<<R2[i]<<"\n";
	}*/
	/*Q.clear();
	Q.push_back(mp(mp(0, -1), mp(mp(1 , 2), 0)));
	solve();
	cout<<ans[0];*/
	vector<pair<int, pii>> V;
	for(int i=0; i<m; i++){
		if(L1[i]!=-1)V.pb(mp(edg[L1[i]].st+edg[i].st, mp(1, edg[i].st)));
		else V.pb(mp(-2*INF, mp(1, edg[i].st)));
		V.pb(mp(2*edg[i].st, mp(-2, edg[i].st)));
		if(L2[i]!=m)V.pb(mp(edg[L2[i]].st+edg[i].st, mp(1, edg[i].st)));
	}
	sort(all(V));
	long long sum=0;
	int q;
	cin>>q;
	vector<pii> Q(q);
	for(int i=0; i<q; i++){
		cin>>Q[i].st;
		Q[i].st*=2;
		Q[i].nd=i;
	}
	sort(Q.begin(), Q.end());
	vector<ll> ans2(q);
	int ile=0, wsk=0;
	for(int i=0; i<V.size(); i++){
		while(wsk<q && Q[wsk].st<=V[i].st){
			//cout<<sum<<" "<<ile<<" "<<Q[wsk].st/2<<"\n";
			ans2[Q[wsk].nd]=sum-ile*1ll*(Q[wsk].st/2);
			//cout<<Q[wsk].nd<<" "<<ans2[Q[wsk].nd]<<"\n";
			wsk++;
		}
		ile+=V[i].nd.st;
		sum+=V[i].nd.st*1ll*V[i].nd.nd;
	}
	while(wsk<q){
		ans2[Q[wsk].nd]=sum-ile*1ll*(Q[wsk].st/2);
		wsk++;
	}
	for(ll i:ans2){
		cout<<i<<"\n";
	}
}

Compilation message

reconstruction.cpp: In function 'void solve()':
reconstruction.cpp:76:16: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<std::pair<int, int>, std::pair<std::pair<int, int>, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   76 |  for(int i=0; i<Q.size(); i++){
      |               ~^~~~~~~~~
reconstruction.cpp: In function 'void rec()':
reconstruction.cpp:114:16: 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]
  114 |  for(int i=0; i<edg.size(); i++){
      |               ~^~~~~~~~~~~
reconstruction.cpp:119:7: 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]
  119 |   if(m!=edg.size())Q.pb(mp(mp(i+1, m), mp(edg[i].nd, 2*i+1)));
      |      ~^~~~~~~~~~~~
reconstruction.cpp:122:16: 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]
  122 |  for(int i=0; i<edg.size(); i++){
      |               ~^~~~~~~~~~~
reconstruction.cpp:130:7: 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]
  130 |   if(m!=edg.size()){
      |      ~^~~~~~~~~~~~
reconstruction.cpp: In function 'int main()':
reconstruction.cpp:180:16: 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]
  180 |  for(int i=0; i<V.size(); i++){
      |               ~^~~~~~~~~

Subtask #1
3.0 / 3.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct

Subtask #2
0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Execution timed out 5047 ms 8276 KB Time limit exceeded
21 Halted 0 ms 0 KB -

Subtask #3
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 240 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Execution timed out 5034 ms 8280 KB Time limit exceeded
5 Halted 0 ms 0 KB -

Subtask #4
28.0 / 28.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Correct 327 ms 28360 KB Output is correct
21 Correct 247 ms 28516 KB Output is correct
22 Correct 323 ms 28488 KB Output is correct
23 Correct 332 ms 28492 KB Output is correct
24 Correct 342 ms 28436 KB Output is correct
25 Correct 352 ms 28480 KB Output is correct
26 Correct 382 ms 28340 KB Output is correct
27 Correct 363 ms 28472 KB Output is correct
28 Correct 357 ms 28368 KB Output is correct
29 Correct 350 ms 28308 KB Output is correct
30 Correct 341 ms 28348 KB Output is correct
31 Correct 318 ms 28312 KB Output is correct
32 Correct 333 ms 28980 KB Output is correct
33 Correct 329 ms 28152 KB Output is correct

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Execution timed out 5047 ms 8276 KB Time limit exceeded
21 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 0 ms 340 KB Output is correct
7 Correct 0 ms 340 KB Output is correct
8 Correct 0 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 0 ms 340 KB Output is correct
11 Correct 0 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 1 ms 340 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 1 ms 340 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 1 ms 340 KB Output is correct
19 Correct 1 ms 340 KB Output is correct
20 Execution timed out 5047 ms 8276 KB Time limit exceeded
21 Halted 0 ms 0 KB -