Submission #1113280

#	Time	Username	Problem	Language	Result	Execution time	Memory
1113280		elotelo966	September (APIO24_september)	C++17	45 / 100	185 ms	15296 KiB

september

#include "september.h"
#include <bits/stdc++.h>
using namespace std;

//#define int long long
#define OYY LLONG_MAX
#define mod 1000000007
#define faster ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
#define FOR for(int i=1;i<=n;i++)
#define mid (start+end)/2
#define lim 300005
#define fi first
#define se second

typedef long long lo;

int n,m;

int par[lim],dizi[lim],mp[lim],sz[lim];

inline int find(int node){
	if(node==par[node])return node;
	return par[node]=find(par[node]);
}

inline void uni(int node1,int node2){
	//cout<<node1<<" "<<node2<<endl;
	int par1=find(node1);
	int par2=find(node2);
	if(par1==par2)return ;
	if(sz[par1]<sz[par2])swap(par1,par2);
	sz[par1]+=sz[par2];
	par[par2]=par1;
}

int solve(int N,int M,std::vector<int> F,std::vector<std::vector<int>> S){
	n=N;
	m=M;
	FOR{
		par[i-1]=i-1;
		sz[i-1]=1;
	}
	
	for(int i=0;i<m;i++){
		for(int j=0;j<n-1;j++){
			dizi[j]=j;
			mp[S[i][j]]=j;
		}
		for(int j=0;j<n-1;j++){
			int anc=F[S[i][j]];
			if(anc==0)continue;
			//cout<<j<<" "<<anc<<" "<<mp[anc]<<" "<<dizi[mp[anc]]<<endl;
			dizi[j]=min(dizi[j],dizi[mp[anc]]);
		}
		for(int j=n-2;j>=0;j--){
			if(j==n-2)continue;
			dizi[j]=min(dizi[j],dizi[j+1]);
			if(dizi[j]==dizi[j+1]){
				uni(S[i][j],S[i][j+1]);
			}
		}
		
		/*for(int j=0;j<n-1;j++)cout<<dizi[j]<<" ";
		cout<<endl;*/
		
	}
	
	int cev=0;
	
	for(int i=0;i<n-1;i++){
		if(dizi[i]==i)cev++;
	}
	
	set<int> st;
	
	for(int i=1;i<n;i++){
		st.insert(find(i));
	}
	
	return cev;
}

/*
int32_t main(){
	faster
	cin>>n>>m;
	
	vector<int> v1;
	
	vector<vector<int>> v2;
	
	FOR{
		int x;cin>>x;
		v1.push_back(x);
	}
	
	for(int i=1;i<=m;i++){
		vector<int>tut;
		for(int j=1;j<n;j++){
			int x;cin>>x;
			tut.push_back(x);
		}
		v2.push_back(tut);
	}
	
	cout<<solve(n,m,v1,v2)<<'\n';
	
	return 0;
}
*/

• Subtask 1: 11 / 11
• Subtask 2: 0 / 14
• Subtask 3: 5 / 5
• Subtask 4: 9 / 9
• Subtask 5: 0 / 5
• Subtask 6: 0 / 11
• Subtask 7: 9 / 9
• Subtask 8: 11 / 11
• Subtask 9: 0 / 9
• Subtask 10: 0 / 16