Submission #496442

#	Time	Username	Problem	Language	Result	Execution time	Memory
496442		ergagan	Nautilus (BOI19_nautilus)	C++17	29 / 100	1077 ms	1136 KiB

nautilus

//я так много думал, что опять попал
#include <bits/stdc++.h>
#define all(x) x.begin(),x.end()
#define pb push_back
#define ppb pop_back
#define pf push_front
#define ppf pop_front
#define f first
#define s second
#define left(v) v + v
#define right(v) v + v + 1
#define ub upper_bound
#define lb lower_bound

using namespace std;
typedef long long ll;

//17 SEVENTEEN
const long double Pi = acos(-1.0);
const ll dx[] = {0,0,1,-1};
const ll dy[] = {1,-1,0,0};
const ll N = (ll) 1e6 + 17;
const ll M = (ll) 5e3 + 69;
const ll inf = (ll) 1e14 + 3;
const ll mod = (ll) 1e9 + 7;
ll sq(ll x) { return x * x; }

ll zxc = 1, n, m, sz, ans, bl[M][M];

string s;

char a[M][M];

void go(ll x, ll y, ll pos) {

    if(x < 1 || x > n || y < 1 || y > m || a[x][y] == '#') return;
    if(pos > sz) { bl[x][y] = 1; return; }

    if(s[pos] == 'W' || s[pos] == '?') go(x, y - 1, pos + 1);
    if(s[pos] == 'E' || s[pos] == '?') go(x, y + 1, pos + 1);
    if(s[pos] == 'N' || s[pos] == '?') go(x - 1, y, pos + 1);
    if(s[pos] == 'S' || s[pos] == '?') go(x + 1, y, pos + 1);

}

void solve() {

    cin >> n >> m >> sz;
    for(ll i = 1; i <= n; i++) {
        for(ll j = 1; j <= m; j++) {
            cin >> a[i][j];
        }
    }
    cin >> s;
    s = " " + s;
    for(ll i = 1; i <= n; i++) {
        for(ll j = 1; j <= m; j++) {
            if(a[i][j] != '#') go(i, j, 1);
        }
    }

    for(ll i = 1; i <= n; i++) {
        for(ll j = 1; j <= m; j++) {
            ans += bl[i][j];
//            cout << (bl[i][j] ? '1' : a[i][j]) << " ";
        }
//        cout << "\n";
    }
    cout << ans << "\n";
}

/*

5 9 7
...##....
..#.##..#
..#....##
.##...#..
....#....
WSWEENN

*/

int main(/*Уверенно*/) {
ios_base::sync_with_stdio(0);
    cin.tie(0);
/*
	freopen(".in", "r", stdin);
	freopen(".out", "w", stdout);
*/
//    cin >> zxc;
    while(zxc--) {
        solve();
    }
  	return 0;
}
// さよならさ いかなくちゃ

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