Submission #1108771

#	Time	Username	Problem	Language	Result	Execution time	Memory
1108771		Tsagana	Energetic turtle (IZhO11_turtle)	C++17	10 / 100	673 ms	146504 KiB

turtle

#include<bits/stdc++.h>

#define IOS ios_base::sync_with_stdio(false);cin.tie();cout.tie();
#define all(x) x.begin(), x.end()
#define lnl long long
#define pq priority_queue
#define eb emplace_back
#define lb lower_bound
#define ub upper_bound
#define pb push_back
#define pp pop_back
#define F first
#define S second

using namespace std;

struct row {
	int y[1001][21];
	bool t[1001];
};

int antiloop = 0;

int md;
int n, m;
int k, t;
int a[30];
row X[1001];
map<pair<int, int>, bool> mp;

void solve () {
	cin >> n >> m >> k >> t >> md;

	for (int i = 0; i < k; i++) {
		int x, y; cin >> x >> y;
		X[x].t[y] = 1;
	}
	for (int i = 0; i <= t; i++) X[0].y[0][i] = 0;
		X[0].y[0][0] = 1;

	queue<pair<int, int>> q;
	q.push({0, 0});
	while (!q.empty()) {
		pair<int, int> p = q.front(); q.pop();
		if (mp.find(p) != mp.end()) continue ;
		mp[p] = 1;

		if (p.F) {

			if (X[p.F].t[p.S]) {
				for (int i = 0; i < t; i++) {
					X[p.F].y[p.S][i+1] += X[p.F-1].y[p.S][i];
					X[p.F].y[p.S][i+1] %= md;
				}
			}
			else {
				for (int i = 0; i <= t; i++) {
					X[p.F].y[p.S][i] += X[p.F-1].y[p.S][i];
					X[p.F].y[p.S][i] %= md;
				}
			}

		}

		if (p.S) {

			if (X[p.F].t[p.S]) {
				for (int i = 0; i < t; i++) {
					X[p.F].y[p.S][i+1] += X[p.F].y[p.S-1][i];
					X[p.F].y[p.S][i+1] %= md;
				}
			}
			else {
				for (int i = 0; i <= t; i++) {
					X[p.F].y[p.S][i] += X[p.F].y[p.S-1][i];
					X[p.F].y[p.S][i] %= md;
				}
			}
		}
		if (p.F != n) q.push({p.F+1, p.S});
		if (p.S != m) q.push({p.F, p.S+1});


		// antiloop++; if (antiloop > 20) exit(0);
		// cout << p.F << ' ' << p.S << '\n';
		// for (int i = 0; i <= t; i++) {
		// 	cout << X[p.F].y[p.S][i] << ' ';
		// }
		// cout << '\n';

	}
	int ans = 0;
	for (int i = 0; i <= t; i++) {
		ans += X[n].y[m][i];
	}
	cout << ans;
}
int main() {IOS solve(); return 0;}

• Subtask 1: 10 / 100