Submission #1148585

#	Time	Username	Problem	Language	Result	Execution time	Memory
1148585		gazizmadi11	Nautilus (BOI19_nautilus)	C++20	66 / 100	1099 ms	273580 KiB

nautilus

//gm  --- akezhon
#include <bits/stdc++.h>
// #pragma GCC optimize("Ofast,no-stack-protector,unroll-loops,fast-math,O3")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#define pb push_back
#define pf push_front
#define F first
#define S second
#define all(v) v.begin(),v.end()
#define pii pair<int,int>
#define tm (tl+tr)/2
#define TL v+v, tl, tm
#define TR v+v+1, tm+1, tr
#define DA l <= tl && tr <= r
#define NE r < tl || tr < l
#define double long double
#define int long long 
using namespace std;

const int N=1e5+7;
const int mod=998244353;
const int inf=2e18;

set <pii> st[5005];

void AlemAmenov(){
	int n, m, k;
	string s;
	cin >> n >> m >> k;
	string a[n+1];
	for(int i=0; i < n; i++){
		cin >> a[i];
	}
	cin >> s;
	s=' '+s;
	queue<pair<pii, int>>q;
	for(int i=0; i < n; i++){
		for(int j=0; j < m; j++){
			if(a[i][j] == '.')st[1].insert({i, j});
		}
	}
	for(int it=1; it < s.size(); it++){
		for(auto [i, j] : st[it]){
			if(s[it] == 'N' || s[it] == '?'){
				if(i && a[i-1][j] == '.')st[it+1].insert({i-1, j});
			}
			if(s[it] == 'S' || s[it] == '?'){
				if(i<n-1 && a[i+1][j] == '.')st[it+1].insert({i+1, j});
			}
			if(s[it] == 'W' || s[it] == '?'){
				if(j && a[i][j-1] == '.')st[it+1].insert({i, j-1});
			}
			if(s[it] == 'E' || s[it] == '?'){
				if(j<m-1 && a[i][j+1] == '.')st[it+1].insert({i, j+1});
			}
		}
	}
	cout << st[s.size()].size() << '\n';
}
signed main(){

    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int RealName=1;
    // cin >> RealName;

    // freopen("connect.in", "r", stdin);
    // freopen("connect.out", "w", stdout);

    while(RealName--)
        AlemAmenov();
    
return 0;
}

• Subtask 1: 29 / 29
• Subtask 2: 37 / 37
• Subtask 3: 0 / 34