Submission #590266

#	Time	Username	Problem	Language	Result	Execution time	Memory
590266		blue	Snake Escaping (JOI18_snake_escaping)	C++17	5 / 100	2065 ms	11196 KiB

snake_escaping

#include <iostream>
#include <vector>
using namespace std;

using vi = vector<int>;

int main()
{
	int L, Q;
	cin >> L >> Q;

	vi A((1<<L));
	for(int i = 0; i < (1<<L); i++)
	{
		char c;
		cin >> c;
		A[i] = c - '0';
	}

	for(int j = 0; j < Q; j++)
	{
		int res = 0;

		int mask = 0, test = 0;
		for(int b = L-1; b >= 0; b--)
		{
			char c;
			cin >> c;

			if(c == '0')
				test |= (1<<b);
			else if(c == '1')
			{
				mask |= (1<<b);
				test |= (1<<b);
			}
		}

		// cerr << test << ' ' << mask << '\n';

		for(int i = 0; i < (1<<L); i++)
		{
			if((i & test) == mask)
				res += A[i];
		}

		cout << res << '\n';
	}
}

• Subtask 1: 5 / 5
• Subtask 2: 0 / 7
• Subtask 3: 0 / 10
• Subtask 4: 0 / 53
• Subtask 5: 0 / 25