Submission #1289558

#	Time	Username	Problem	Language	Result	Execution time	Memory
1289558		hasandas	Dango Maker (JOI18_dango_maker)	C++20	0 / 100	1 ms	576 KiB

dango_maker

#include <bits/stdc++.h>

using namespace std;


int main() {
	ios::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr);

	long long n,m;
	cin>>n>>m;

	vector<string> v(n);
	vector<vector<bool>> a(n, vector<bool>(m,false));

	int ans = 0;
	
	for (int i = 0;i<n;i++) {
		for (int j = 0;j<m;j++) {
			cin>>v[i];
		}
	}

	for (int i = 0;i<n-2;i++) {
		for (int j = 0;j<m-2;j++) {
			if (v[i][j] == 'R' && v[i][j+1] == 'G' && v[i][j+2] == 'W') {
				if (a[i][j] && a[i][j+1] && a[i][j+2]) {
					a[i][j] = true;
					a[i][j+1] = true;
					a[i][j+2] = true;

					ans++;
				}
			}
		}
	}

	for (int i = 0;i<n-2;i++) {
		for (int j = 0;j<m-2;j++) {
			if (v[i][j] == 'R' && v[i+1][j] == 'G' && v[i+2][j] == 'W') {
				if (a[i][j] && a[i+1][j] && a[i+2][j]) {
					a[i][j] = true;
					a[i+1][j] = true;
					a[i+2][j] = true;

					ans++;
				}
			}
		}
	}

	cout << ans << endl;
	
	return 0;
}

• Subtask 1: 0 / 13
• Subtask 2: 0 / 20
• Subtask 3: 0 / 67