oj.uz

Submission #496465

# Submission time Handle Problem Language Result Execution time Memory
496465 2021-12-21T09:30:15 Z armashka Nautilus (BOI19_nautilus) C++17
66 / 100
 25 ms 2036 KB 
#include <bits/stdc++.h>
 
//#pragma comment(linker, "/stack:200000000")
//#pragma GCC optimize("Ofast")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native")
 
#define fast ios_base::sync_with_stdio(false);cin.tie(nullptr);cout.tie(nullptr);
#define all(v) v.begin(),v.end()
#define pb push_back
#define sz size()
#define ft first
#define sd second
 
using namespace std;
typedef long long ll;
typedef pair<ll, ll> pll;
typedef unsigned long long ull;
 
const int N = 2e5 + 5;
const ll M = 1e8;
const ll inf = 1e9;
const ll mod = 1e9;
const double Pi = acos(-1); 
 
ll binpow(ll x, ll ti) { ll res = 1;while (ti){if(ti & 1)res *= x;x *= x;ti >>= 1; x %= mod; res %= mod;} return res;}
ll binmul(ll x, ll ti) { ll res = 0;while (ti){if(ti & 1)res += x;x += x;ti >>= 1; x %= mod; res %= mod;} return res;}
ll nok(ll a, ll b) { return (a*b)/__gcd(abs(a),abs(b)) * (a*b > 0 ? 1 : -1); }
bool odd(ll n) { return (n % 2 == 1); }
bool even(ll n) { return (n % 2 == 0); }            
 
ll n, m, k;
string s;
char c[105][105];
set <pll> st;
bool used[105][105][105]; 

void rec(ll x, ll y, ll pos) {
	if (used[x][y][pos]) return;
	used[x][y][pos] = 1;
	if (pos == k) {
		st.insert({x, y});
		return;
	}
	if ((s[pos] == 'E' || s[pos] == '?') && y < m && c[x][y + 1] == '.') rec(x, y + 1, pos + 1);
	if ((s[pos] == 'W'  || s[pos] == '?') && y > 1 && c[x][y - 1] == '.') rec(x, y - 1, pos + 1);
	if ((s[pos] == 'S' || s[pos] == '?') && x < n && c[x + 1][y] == '.') rec(x + 1, y, pos + 1);
	if ((s[pos] == 'N' || s[pos] == '?') && x > 1 && c[x - 1][y] == '.') rec(x - 1, y, pos + 1);
}
 
const void solve(/*Armashka*/) {	
	cin >> n >> m >> k;
	for (int i = 1; i <= n; ++ i) {
		for (int j = 1; j <= m; ++ j) {
			cin >> c[i][j];
		}
	}
	cin >> s;
	for (int i = 1; i <= n; ++ i) {
		for (int j = 1; j <= m; ++ j) {
			if (c[i][j] == '.') rec(i, j, 0);
		}
	}
	cout << st.sz << "\n";
}   
 
signed main() {
    fast;
    //freopen("divide.in", "r", stdin);
    //freopen("divide.out", "w", stdout);
    int tt = 1;
    //cin >> tt;
    while (tt --) {
        solve();
    }
}                                                                          
 
/*
5 4 4
1 2
3 1
3 4
5 3
4 5 2 3
2 1 3 1
1 3 5
2 3 4 5
2 1 3 1
*/

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 1868 KB Output is correct
2 Correct 2 ms 1356 KB Output is correct
3 Correct 1 ms 1356 KB Output is correct
4 Correct 1 ms 1356 KB Output is correct
5 Correct 1 ms 1356 KB Output is correct
6 Correct 0 ms 332 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 1868 KB Output is correct
2 Correct 2 ms 1356 KB Output is correct
3 Correct 1 ms 1356 KB Output is correct
4 Correct 1 ms 1356 KB Output is correct
5 Correct 1 ms 1356 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 25 ms 1904 KB Output is correct
8 Correct 7 ms 1484 KB Output is correct
9 Correct 2 ms 1356 KB Output is correct
10 Correct 2 ms 1356 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 22 ms 2036 KB Output is correct
13 Correct 22 ms 1868 KB Output is correct
14 Correct 15 ms 1740 KB Output is correct
15 Correct 1 ms 1356 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 22 ms 1980 KB Output is correct
18 Correct 22 ms 1924 KB Output is correct
19 Correct 6 ms 1608 KB Output is correct
20 Correct 3 ms 1484 KB Output is correct
21 Correct 0 ms 332 KB Output is correct

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 1868 KB Output is correct
2 Correct 2 ms 1356 KB Output is correct
3 Correct 1 ms 1356 KB Output is correct
4 Correct 1 ms 1356 KB Output is correct
5 Correct 1 ms 1356 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 25 ms 1904 KB Output is correct
8 Correct 7 ms 1484 KB Output is correct
9 Correct 2 ms 1356 KB Output is correct
10 Correct 2 ms 1356 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 22 ms 2036 KB Output is correct
13 Correct 22 ms 1868 KB Output is correct
14 Correct 15 ms 1740 KB Output is correct
15 Correct 1 ms 1356 KB Output is correct
16 Correct 1 ms 332 KB Output is correct
17 Correct 22 ms 1980 KB Output is correct
18 Correct 22 ms 1924 KB Output is correct
19 Correct 6 ms 1608 KB Output is correct
20 Correct 3 ms 1484 KB Output is correct
21 Correct 0 ms 332 KB Output is correct
22 Runtime error 2 ms 460 KB Execution killed with signal 11
23 Halted 0 ms 0 KB -