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Submission #251642

# Submission time Handle Problem Language Result Execution time Memory
251642 2020-07-22T05:56:21 Z MrRobot_28 Zoo (COCI19_zoo) C++17
110 / 110
 53 ms 2560 KB 
#include<bits/stdc++.h>
using namespace std;

signed main() {
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	cout.tie(NULL);
	int n, m;
	cin >> n >> m;
	vector <vector <char> > a(n, vector <char> (m));
	vector <vector <bool> > used(n, vector <bool> (m));
	for(int i = 0; i < n; i++)
	{
		for(int j = 0; j < m; j++)
		{
			cin >> a[i][j];
		}
	}
	queue <pair <int, int> > q1, q2;
	used[0][0] = true;
	if(a[0][0] == 'T')
	{
		q1.push({0, 0});
	}
	else if(a[0][0] == 'B')
	{
		q2.push({0, 0});
	}
	int cnt = 0;
	while(q1.size() > 0 || q2.size() > 0)
	{
		if(q1.size() > 0)
		{
			cnt++;
		}
		while(q1.size() > 0)
		{
			pair <int, int> v = q1.front();
			q1.pop();
			int x = v.first;
			int y = v.second;
			if(x > 0 && !used[x - 1][y])
			{
				used[x - 1][y] = true;
				if(a[x - 1][y] == 'T')
				{
					q1.push({x - 1, y});
				}
				else if(a[x - 1][y] == 'B')
				{
					q2.push({x - 1, y});
				}
			}
			if(x < n - 1 && !used[x + 1][y])
			{
				used[x + 1][y] = true;
				if(a[x + 1][y] == 'T')
				{
					q1.push({x + 1, y});
				}
				else if(a[x + 1][y] == 'B')
				{
					q2.push({x + 1, y});
				}
			}
			if(y > 0 && !used[x][y - 1])
			{
				used[x][y - 1] = true;
				if(a[x][y - 1] == 'T')
				{
					q1.push({x, y - 1});
				}
				else if(a[x][y - 1] == 'B')
				{
					q2.push({x, y - 1});
				}
			}
			if(y < m - 1 && !used[x][y + 1])
			{
				used[x][y + 1] = true;
				if(a[x][y + 1] == 'T')
				{
					q1.push({x, y + 1});
				}
				else if(a[x][y + 1] == 'B')
				{
					q2.push({x, y + 1});
				}
			}
		}
		if(q2.size() > 0)
		{
			cnt++;
		}
		while(q2.size() > 0)
		{
			pair <int, int> v = q2.front();
			q2.pop();
			int x = v.first;
			int y = v.second;
			if(x > 0 && !used[x - 1][y])
			{
				used[x - 1][y] = true;
				if(a[x - 1][y] == 'T')
				{
					q1.push({x - 1, y});
				}
				else if(a[x - 1][y] == 'B')
				{
					q2.push({x - 1, y});
				}
			}
			if(x < n - 1 && !used[x + 1][y])
			{
				used[x + 1][y] = true;
				if(a[x + 1][y] == 'T')
				{
					q1.push({x + 1, y});
				}
				else if(a[x + 1][y] == 'B')
				{
					q2.push({x + 1, y});
				}
			}
			if(y > 0 && !used[x][y - 1])
			{
				used[x][y - 1] = true;
				if(a[x][y - 1] == 'T')
				{
					q1.push({x, y - 1});
				}
				else if(a[x][y - 1] == 'B')
				{
					q2.push({x, y - 1});
				}
			}
			if(y < m - 1 && !used[x][y + 1])
			{
				used[x][y + 1] = true;
				if(a[x][y + 1] == 'T')
				{
					q1.push({x, y + 1});
				}
				else if(a[x][y + 1] == 'B')
				{
					q2.push({x, y + 1});
				}
			}
		}
	}
	cout << cnt;
  	return 0;
}

Subtask #1
45.0 / 45.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct

Subtask #2
65.0 / 65.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 384 KB Output is correct
2 Correct 0 ms 384 KB Output is correct
3 Correct 0 ms 384 KB Output is correct
4 Correct 1 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 1 ms 384 KB Output is correct
7 Correct 1 ms 384 KB Output is correct
8 Correct 1 ms 384 KB Output is correct
9 Correct 1 ms 384 KB Output is correct
10 Correct 1 ms 384 KB Output is correct
11 Correct 1 ms 384 KB Output is correct
12 Correct 1 ms 384 KB Output is correct
13 Correct 1 ms 384 KB Output is correct
14 Correct 1 ms 384 KB Output is correct
15 Correct 1 ms 384 KB Output is correct
16 Correct 18 ms 2432 KB Output is correct
17 Correct 17 ms 2432 KB Output is correct
18 Correct 18 ms 2560 KB Output is correct
19 Correct 20 ms 2560 KB Output is correct
20 Correct 18 ms 2432 KB Output is correct
21 Correct 50 ms 2560 KB Output is correct
22 Correct 50 ms 2432 KB Output is correct
23 Correct 49 ms 2432 KB Output is correct
24 Correct 52 ms 2432 KB Output is correct
25 Correct 50 ms 2432 KB Output is correct
26 Correct 51 ms 2432 KB Output is correct
27 Correct 50 ms 2304 KB Output is correct
28 Correct 49 ms 2304 KB Output is correct
29 Correct 53 ms 2432 KB Output is correct
30 Correct 51 ms 2432 KB Output is correct