Submission #477348

#	Time	Username	Problem	Language	Result	Execution time	Memory
477348		BThero	Cards (LMIO19_korteles)	C++17	36 / 100	1096 ms	24312 KiB

korteles

#include <bits/stdc++.h>

#define pb push_back
#define all(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()

using namespace std;

typedef long long ll;

int encode(char a, char b) {
	return (a - 'A') * 26 + (b - 'A');
}

int main() {
	ios::sync_with_stdio(0);
	cin.tie(0); cout.tie(0);
	int n;
	cin >> n;
	vector<string> arr(n);
	vector<int> a(n), b(n), c(n), d(n);

	for (int i = 0; i < n; i++) {
		string x, y;
		cin >> x >> y;
		arr[i] = x + y;
		a[i] = encode(arr[i][0], arr[i][1]);
		b[i] = encode(arr[i][0], arr[i][2]);
		c[i] = encode(arr[i][1], arr[i][3]);
		d[i] = encode(arr[i][2], arr[i][3]);
	}

	ll ans = 0;

	for (int i = 0; i < n; i++) {
		for (int j = 0; j < i; j++) {
			if (a[i] == d[j] || b[i] == c[j] || c[i] == b[j] || d[i] == a[j]) {
				ans++;
			}
		}
	}

	cout << ans << '\n';
	return 0;
}

• Subtask 1: 16 / 16
• Subtask 2: 20 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 19
• Subtask 5: 0 / 25