Submission #554839

#	Time	Username	Problem	Language	Result	Execution time	Memory
554839		DanShaders	Misspelling (JOI22_misspelling)	C++17	8 / 100	4085 ms	23816 KiB

misspelling

#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
using namespace std;

namespace x = __gnu_pbds;
template <typename T>
using ordered_set = x::tree<T, x::null_type, less<T>, x::rb_tree_tag, x::tree_order_statistics_node_update>;

template <typename T>
using normal_queue = priority_queue<T, vector<T>, greater<>>;

#define all(x) begin(x), end(x)
#define sz(x) ((int) (x).size())
#define x first
#define y second
using ll = long long;
using ld = long double;

#define int ll

const int N = 210, C = 26, MOD = 1e9 + 7;

ll dp[N][N][C];
vector<tuple<int, int, bool>> a;

signed main() {
	cin.tie(0)->sync_with_stdio(0);
	int n, m;
	cin >> n >> m;
	a.resize(m);
	for (int i = 0; i < m; ++i) {	
		int u, v;
		cin >> u >> v;
		--u, --v;
		a.push_back({min(u, v), max(u, v), u > v});
	}
	for (int i = 0; i < C; ++i) {
		dp[1][1][i] = 1;
	}
	for (int i = 1; i < n; ++i) {
		for (int j = 1; j <= i; ++j) {
			for (int c0 = 0; c0 < C; ++c0) {
				for (int c1 = 0; c1 < C; ++c1) {
					if (c0 == c1) {
						(dp[i + 1][j + 1][c0] += dp[i][j][c0]) %= MOD;
						continue;
					}
					bool flag = true;
					for (auto [x, y, inv] : a) {
						if (x >= i - j && x < i && y >= i) {
							if ((c1 < c0) != inv) {
								flag = false;
								break;
							}
						}
					}
					if (flag) {
						(dp[i + 1][1][c1] += dp[i][j][c0]) %= MOD;
					}
				}
			}
		}
	}
	cout << accumulate(dp[n][0], dp[n + 1][0], 0ll) % MOD;
}

• Subtask 1: 8 / 8
• Subtask 2: 0 / 20
• Subtask 3: 0 / 29
• Subtask 4: 0 / 32
• Subtask 5: 0 / 11