Submission #889922

#	Time	Username	Problem	Language	Result	Execution time	Memory
889922		vjudge1	Nautilus (BOI19_nautilus)	C++17	29 / 100	4 ms	4700 KiB

nautilus

//#pragma comment(linker, "/stack:200000000")
//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
#include <map>
#include <set>
#include <list>
#include <cmath>
#include <ctime>
#include <deque>
#include <queue>
#include <stack>
#include <string>
#include <bitset>
#include <cstdio>
#include <limits>
#include <vector>
#include <climits>
#include <cstring>
#include <cstdlib>
#include <fstream>
#include <numeric>
#include <sstream>
#include <cassert>
#include <iomanip>
#include <iostream>
#include <algorithm>
#include <stdio.h>
#include <fstream>
#include <unordered_map>
using namespace std;

typedef long long ll;
typedef long double ld;

#define all(x) x.begin(),x.end()
#define pb push_back
#define ent "\n"

const int maxn = (int)2e5 + 13;
const ll inf = (long long)1e18 + 20;
const int mod = (int)1e9 + 7;

int n,m,k;
char a[1001][1001];
int used[1001][1001];

bool check(int i,int j){
	if(1 <= i && i <= n && 1 <= j && j <= m && a[i][j] == '.')return 1;
	else return 0;
}

void solve(){
	cin >> n >> m >> k;
	for(int i = 1 ; i <= n ; i ++){
		for(int j = 1 ; j <= m ; j ++){
			cin >> a[i][j];
		}
	}
	string s;cin >> s;
	s = '+' + s;
	for(int i = 1 ; i <= n ; i ++){
		for(int j = 1 ; j <= m ; j ++){
			if(a[i][j] == '.'){
				int x = i,y = j;
				int ok = 0;
				for(int c = 1 ; c <= k ; c ++){
					if(s[c] == 'N'){
						x --;
					}
					else if(s[c] == 'E'){
						y ++;
					}
					else if(s[c] == 'S'){
						x ++;
					}
					else{
						y --;
					}
					if(check(x,y) == 0)ok = 1;
				}
				if(ok)continue;
				used[x][y] = 1;
			}
		}
	}
	int ans = 0;
	for(int i = 1 ; i <= n ; i ++){
		for(int j = 1 ; j <= n ; j ++)ans += used[i][j];
	}
	cout << ans;
}

int main(){
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	int t = 1;
	//cin >> t;
	while(t --){
		solve();
	}
	return 0;
}

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