Submission #496243

#	Time	Username	Problem	Language	Result	Execution time	Memory
496243		mansur	Nautilus (BOI19_nautilus)	C++17	0 / 100	4 ms	204 KiB

nautilus

#include<bits/stdc++.h>	
 
#pragma optimize ("g",on)
#pragma GCC optimize ("inline")
#pragma GCC optimize ("Ofast")
#pragma GCC optimize ("unroll-loops")
#pragma GCC optimize ("03")
#pragma GCC target ("sse,sse2,sse3,ssse3,sse4,popcnt,abm,avx2,mmx,fma,avx,tune=native")
#pragma comment(linker, "/stack:200000000")

//01001101 01100001 01101011 01101000 01100001  01100111 01100001 01111001 

using namespace std;

#define all(a) a.begin(), a.end()                                                   
#define rall(a) a.rbegin(), a.rend()
#define ll long long
#define pb push_back
#define sz(a) a.size()
#define nl '\n'
#define popb pop_back()                                                                   
#define ld double
#define ull unsigned long long
#define ff first                                         
#define ss second  
#define fix fixed << setprecision
#define pii pair<int, int>                          
#define E exit (0)
#define int long long
 
const int inf = 1e9, N = 1e6 + 1, mod = 998244353;                    

vector<pii> dir = {{1, 0}, {0, 1}, {-1, 0}, {0, -1}};

main() {                                                         
	//freopen("cowrect.in", "r", stdin);                                                                                     
	//freopen("cowrect.out", "w", stdout);                                                                                     
	ios_base::sync_with_stdio(NULL);                                                                                        
	cin.tie(NULL);
	int n, m, r;
	cin >> n >> m >> r;
	char c[n + 1][m + 1];
	for (int i = 1; i <= n; i++) {
		for (int j = 1; j <= m; j++) cin >> c[i][j];
	}
	int a = 0, b = 0, ans = 0;
	int mxa = 0, mxb = 0, mna = 0, mnb = 0;
	for (int i = 1; i <= r; i++) {
		char e;
		cin >> e;
		if (e == 'N') a--;
		if (e == 'S') a++;
		if (e == 'W') b--;
		if (e == 'E') b++;
		mxa = max(mxa, a);
		mna = min(mna, a);
		mxb = max(mxb, b);
		mnb = min(mnb, b);
	}
	vector<int> d = {mxa, mxb, mna, mnb}; 
	for (int i = 1; i <= n; i++) {
		for (int j = 1; j <= m; j++) {
			if (c[i][j] == '#') continue;
			bool ok = 1;
			for (int z = 0; z < 4; z++) {
				int x = i, y = j;
				while (x <= n && y <= m && x >= 1 && y >= 1 && c[x][y] != '#') {
					x += dir[z].ff, y += dir[z].ss;
				}
				int dst = abs(x - i) + abs(y - j);
				if (dst <= abs(d[z])) ok = 0;
			}
			if (ok) ans++;
		}
	}
	cout << ans;
}

Compilation message (stderr)

nautilus.cpp:3: warning: ignoring '#pragma optimize ' [-Wunknown-pragmas]
    3 | #pragma optimize ("g",on)
      | 
nautilus.cpp:9: warning: ignoring '#pragma comment ' [-Wunknown-pragmas]
    9 | #pragma comment(linker, "/stack:200000000")
      | 
nautilus.cpp:35:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   35 | main() {
      | ^~~~

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