oj.uz

Submission #1026091

# Submission time Handle Problem Language Result Execution time Memory
1026091 2024-07-17T14:32:11 Z tolbi Game (eJOI20_game) C++17
40 / 100
 1 ms 348 KB 
#include <bits/stdc++.h>
using namespace std;
struct DSU{
	vector<vector<array<int,2>>> par;
	vector<vector<int>> sz;
	DSU(int n, int m){
		par.resize(n,vector<array<int,2>>(m));
		sz.resize(n,vector<int>(m,1));
		for (int i = 0; i < n; ++i)
		{
			for (int j = 0; j < m; ++j){
				par[i][j]={i,j};
			}
		}
	}
	array<int,2> find(array<int,2> node){
		if (par[node[0]][node[1]]==node) return node;
		return par[node[0]][node[1]]=find(par[node[0]][node[1]]);
	}
	void merge(array<int,2> a, array<int,2> b){
		a=find(a);
		b=find(b);
		if (a==b) return;
		sz[a[0]][a[1]]+=sz[b[0]][b[1]];
		sz[b[0]][b[1]]=0;
		par[b[0]][b[1]]=a;
	}
};
int main(){
	int n,m;cin>>n>>m;
	DSU dsu(n,m);
	vector<array<int,2>> arr;
	vector<vector<int>> say(n,vector<int>(m));
	vector<vector<int>> isloop(n,vector<int>(m));
	for (int i = 0; i < n+1; ++i)
	{
		string str;cin>>str;
		for (int j = 0; j < m; j++){
			if (i-1>=0 && i<n){
				if (str[j]=='0'){
					if (dsu.find({i,j})==dsu.find({i-1,j})){
						isloop[dsu.find({i,j})[0]][dsu.find({i,j})[1]]=1;
					}
					dsu.merge({i,j},{i-1,j});
				}
			}
			if (i<n && str[j]=='1') say[i][j]++;
			if (i-1>=0 && str[j]=='1') say[i-1][j]++;
		}
	}
	for (int i = 0; i < n; i++){
		string str;cin>>str;
		for (int j = 0; j <= m; j++){
			if (j-1>=0 && j<m){
				if (str[j]=='0'){
					if (dsu.find({i,j})==dsu.find({i,j-1})){
						isloop[dsu.find({i,j})[0]][dsu.find({i,j})[1]]=1;
					}
					dsu.merge({i,j},{i,j-1});
				}
			}
			if (j<m && str[j]=='1') say[i][j]++;
			if (j-1>=0 && str[j]=='1') say[i][j-1]++;
		}
	}
	for (int i = 0; i < n; i++){
		for (int j = 0; j < m; j++){
			if (say[i][j]==4) continue;
			if (dsu.find({i,j})!=array<int,2>{i,j}) continue;
			arr.push_back({dsu.sz[i][j],isloop[i][j]});
		}
	}
	/*
	cout<<LMAO.size()<<endl;
	for (int i = 0; i < LMAO.size(); ++i)
	{
		cout<<LMAO[i]<<" ";
	}
	cout<<endl;
	*/
	sort(arr.begin(), arr.end());
	if (arr.size()==0){
		cout<<0<<endl;
	}
	else if (arr.size()==1){
		cout<<-arr.back()[0]<<endl;
	}
	else if (arr.size()==2){
		if (arr[0][1]){
			if (arr[0][0]<4){
				//her seyi alcak bana buyugu vercek
				cout<<arr[1][0]-arr[0][0]<<endl;
			}
			else {
				//4 haric her seyi alcak bana 4 vercek kendi buyuk alcak
				cout<<4-(arr[0][0]-4+arr[1][0])<<endl;
			}
		}
		else {
			if (arr[0][0]<=2){
				//her seyi alcak bana buyugu vercek
				cout<<arr[1][0]-arr[0][0]<<endl;
			}
			else {
				cout<<2-(arr[0][0]-2+arr[1][0])<<endl;
			}
		}
	}
	else cout<<"N/A"<<endl;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct

Subtask #2
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Incorrect 0 ms 348 KB Output isn't correct
6 Halted 0 ms 0 KB -

Subtask #3
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct

Subtask #4
0 / 20.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #5
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 344 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Incorrect 0 ms 348 KB Output isn't correct
14 Halted 0 ms 0 KB -