oj.uz

Submission #918401

# Submission time Handle Problem Language Result Execution time Memory
918401 2024-01-29T19:25:39 Z amirhoseinfar1385 Designated Cities (JOI19_designated_cities) C++17
0 / 100
 2 ms 2652 KB 
#include<bits/stdc++.h>
using namespace std;
const int maxn=2000+10;
struct yal{
	int u,v,wu,wv,jam;
	int getad(int fu){
		if(fu==u){
			return v;
		}
		return u;
	}
	int getval(int fu){
		if(fu==u){
			return wu;
		}
		return wv;
	}
}alle[maxn];
vector<int>adj[maxn];
int resr[maxn][maxn],kaf=0,res[maxn],suma,n;

set<pair<int,int>>dp[maxn];
void merge(int u,int v){
	int fu=u;
	if((int)dp[u].size()<(int)dp[v].size()){
		swap(u,v);
	}
	for(auto x:dp[v]){
		dp[u].insert(x);
	}
	if(fu!=u){
		swap(dp[fu],dp[u]);
	}
}
 
void dfs(int u,int p=-1,int len=0){
	dp[u].clear();
	if(p!=-1){
		dp[u].insert(make_pair(0,u));
	}
	for(auto x:adj[u]){
		int v=alle[x].getad(u);
		if(v!=p){
			//cout<<"ha: "<<u<<" "<<v<<" "<<len<<endl;
			kaf+=alle[x].getval(u);
			dfs(v,u,alle[x].getval(v));
			//cout<<"salam: "<<u<<" "<<v<<endl;
			merge(u,v);			
			//cout<<"injy vas mas "<<u<<" "<<dp[u].size()<<" "<<v<<" "<<dp[v].size()<<endl;
		}
	}
	auto x=*dp[u].rbegin();
	dp[u].erase(x);
	x.first+=len;
	dp[u].insert(x);
}


void solve(int u){
	kaf=0;
	dfs(u);
	resr[u][0]=kaf;
	for(int i=1;i<=n;i++){
		resr[u][i]=resr[u][i-1];
		if((int)dp[u].size()>0){
			resr[u][i]+=(*dp[u].rbegin()).first;
			dp[u].erase(*dp[u].rbegin());
		}
		res[i]=max(res[i],resr[u][i-1]);
	}
}

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	cin>>n;
	for(int i=0;i<n-1;i++){
		cin>>alle[i].u>>alle[i].v>>alle[i].wv>>alle[i].wu;
		alle[i].jam=alle[i].wu+alle[i].wv;
		suma+=alle[i].wu+alle[i].wv;
		adj[alle[i].u].push_back(i);
		adj[alle[i].v].push_back(i);
	}
	for(int i=1;i<=n;i++){
		solve(i);
	}
	int q;
	cin>>q;
	for(int i=1;i<=n;i++){
		res[i]=suma-res[i];
	}
	for(int i=0;i<q;i++){
		int d;
		cin>>d;
		cout<<res[d]<<"\n";
	}
}

Subtask #1
0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Incorrect 1 ms 2652 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Runtime error 1 ms 860 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #3
0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 612 KB Output is correct
2 Runtime error 2 ms 856 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Incorrect 1 ms 2652 KB Output isn't correct
3 Halted 0 ms 0 KB -

Subtask #5
0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 600 KB Output is correct
2 Runtime error 1 ms 860 KB Execution killed with signal 11
3 Halted 0 ms 0 KB -

Subtask #6
0 / 44.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Incorrect 1 ms 2652 KB Output isn't correct
3 Halted 0 ms 0 KB -