Submission #889789

#	Time	Username	Problem	Language	Result	Execution time	Memory
889789		vjudge1	Nautilus (BOI19_nautilus)	C++17	29 / 100	3 ms	512 KiB

nautilus

#include <bits/stdc++.h>
using namespace std;
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>
using namespace __gnu_pbds;
  
#define ordered_set tree<int, null_type,less<int>, rb_tree_tag,tree_order_statistics_node_update>
 
// #pragma GCC optimize("Ofast,unroll-loops,fast-math")
// #pragma GCC target("popcnt")


typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<ll,ll> pll;
 
#define sz size()
#define ff first
#define ss second
#define all(a) a.begin(),a.end()
#define pb push_back

const int mod = ll(1e9)+7; //(b + (a%b)) % b (to mod -1%(10^9+7) correctly in c++ its -1 but its suppose to be 10^9+6
const ll MOD = 998244353;  // (a%mod)*(binpow(b,mod-2,mod) = (a/b)%mod
const int N = ll(2e6)+10;
const long long inf = 2e18;
const long double eps = 1e-15L;
 
ll lcm(ll a, ll b) { return (a / __gcd(a,b))*b; }

ll binpow(ll a, ll b, ll m) { ll res=1; a %= m; while(b>0){ if(b&1)res=(res * a) % m; a=(a * a) % m; b/=2; } return res%m;}


void Freopen(string Key){ freopen((Key+".in").c_str(), "r", stdin); freopen((Key+".out").c_str(), "w", stdout); }

int r, c, m;
string s;
char a[105][105];

bool sub1(string s) {
	for(auto ch : s) if(ch == '?') return false;
	return true;
}

void Baizho() {	
	cin>>r>>c>>m;
	for(int i = 1; i <= r; i ++) {
		for(int j = 1; j <= c; j ++) cin>>a[i][j];
	}
	int ans = 0;
	cin>>s;
	if(sub1(s)) {
		for(int i = 1; i <= r; i ++) {
			for(int j = 1; j <= c; j ++) {
				int x = i, y = j;
				bool failed = 0;
				if(a[x][y] == '#') failed = 1;
				for(auto ch : s) {
					if(failed) break;
					if(ch == 'N') x --;
					else if(ch == 'S') x ++;
					else if(ch == 'W') y --;
					else if(ch == 'E') y ++;
					if(x < 1 || x > r || y < 1 || y > c || a[x][y] == '#') failed = 1;
				}
				if(!failed) ans ++;
			}
		}
		cout<<ans;
	
	}
	
}
 
signed main() {		
 
    ios_base::sync_with_stdio(false);   
    cin.tie(0);cout.tie(0); 
//   	precalc();
   	
    int ttt = 1;
//    cin>>ttt;

    for(int i=1; i<=ttt; i++) { Baizho(); }
}

Compilation message (stderr)

nautilus.cpp: In function 'void Freopen(std::string)':
nautilus.cpp:35:34: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   35 | void Freopen(string Key){ freopen((Key+".in").c_str(), "r", stdin); freopen((Key+".out").c_str(), "w", stdout); }
      |                           ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
nautilus.cpp:35:76: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   35 | void Freopen(string Key){ freopen((Key+".in").c_str(), "r", stdin); freopen((Key+".out").c_str(), "w", stdout); }
      |                                                                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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