oj.uz

Submission #496471

# Submission time Handle Problem Language Result Execution time Memory
496471 2021-12-21T10:01:26 Z xynex Nautilus (BOI19_nautilus) C++17
66 / 100
 1000 ms 158804 KB 
/*
* Author: xynex
* Created: 21.12.2021 13:11
* Why am I so stupid? :c
* Slishkom slab
*/

#include <bits/stdc++.h>

// #pragma GCC optimize("inline")
// #pragma GCC optimize("-fgcse,-fgcse-lm")
// #pragma GCC optimize("-ftree-pre,-ftree-vrp")
// #pragma GCC optimize("-ffast-math")
// #pragma GCC optimize("-fipa-sra")
// #pragma GCC optimize("-fpeephole2")
// #pragma GCC optimize("-fsched-spec")
// #pragma GCC optimize("Ofast,no-stack-protector")
// #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
// #pragma GCC optimize("unroll-loops")

using namespace std;

#define ll long long
#define dl double long
#define ull unsigned long long
#define pr pair
#define vt vector
#define ff first
#define ss second
#define mp make_pair
#define sz(a) (int)a.size()
#define pb push_back
#define pf push_front
#define popB pop_back
#define popF pop_front
#define bit_count __builtin_popcount
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define sp(x) fixed << setprecision(x)

template<typename T> T get_rand(T l, T r) {
    random_device rd;
    mt19937 gen(rd());
    return uniform_int_distribution<T>(l, r)(gen);
}

template<typename T> T lcm(T a, T b) { return a * (b / __gcd(a, b)); }

template<class A> void read(vt<A>& v);
template<class A, size_t S> void read(array<A, S>& a);
template<class T> void read(T& x) { cin >> x; }
void read(double& d) { string t; read(t); d = stod(t); }
void read(long double& d) { string t; read(t); d = stold(t); }
template<class H, class... T> void read(H& h, T&... t) { read(h); read(t...); }
template<class A> void read(vt<A>& x) { for (auto& a : x) read(a); }
template<class A, size_t S> void read(array<A, S>& x) { for (auto& a : x) read(a); }

string to_string(char c) { return string(1, c); }
string to_string(bool b) { return b ? "true" : "false"; }
string to_string(const char* s) { return string(s); }
string to_string(string s) { return s; }
string to_string(vt<bool> v) { string res; for (int i = 0; i < sz(v); ++i) res += char('0' + v[i]); return res; }
template<size_t S> string to_string(bitset<S> b) { string res; for (int i = 0; i < S; ++i) res += char('0' + b[i]); return res; }
template<class T> string to_string(T v) { bool f = 1; string res; for (auto x : v) { if (!f) res += ' '; f = 0; res += to_string(x); } return res; }

template<class A> void write(A x) { cout << to_string(x); }
template<class H, class... T> void write(const H& h, const T&... t) { write(h); write(t...); }

void print() { write("\n"); }
template<class H, class... T> void print(const H& h, const T&... t) { write(h); if (sizeof...(t)) write(' '); print(t...); }

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

const int MOD = 1e9 + 7;
const int N = 5e3 + 5;
const ll INF = 9e18;
const int M = 5e2 + 5;
const dl pi = acos(-1);
const dl eps = 1e-12;
const int sq = 700;

int dx[] = {-1, 0, 1, 0};
int dy[] = {0, -1, 0, 1};
/* ll vs int*/

void precalc() {

}

bitset<N> dp[N][M];
char s[M][M];
void solve() {
    int n, m, k;
    read(n, m, k);
    for(int i = 1; i <= n; ++i) {
        for(int j = 1; j <= m; ++j) {
            read(s[i][j]);
            dp[i][0][j - 1] = (s[i][j] == '#' ? 0 : 1);
        }
    }
    for(int i = 1; i <= k; ++i) {
        char x; read(x);
        for(int j = 1; j <= n; ++j) {
            dp[j][i] = dp[j][0];
            if(x == 'N') dp[j][i] &= dp[j + 1][i - 1];
            if(x == 'S') dp[j][i] &= dp[j - 1][i - 1];
            if(x == 'W') dp[j][i] &= dp[j][i - 1] >> 1;
            if(x == 'E') dp[j][i] &= dp[j][i - 1] << 1;
            if(x == '?') dp[j][i] &= (dp[j + 1][i - 1]) | (dp[j - 1][i - 1]) | (dp[j][i - 1] >> 1) | (dp[j][i - 1] << 1);
        }
    }
    int ans = 0;
    for(int i = 1; i <= n; ++i) {
        ans += dp[i][k].count();
    }
    print(ans);
}

int main() {
    //freop("");
    ios::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);
    int t = 1;
    //read(t);
    precalc();
    for (int i = 1; i <= t; ++i) {
        //write("Case #" + to_string(i) + ": ");
        solve();
    }
    return 0;
}

Compilation message

nautilus.cpp: In function 'void freop(std::string)':
nautilus.cpp:73:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   73 |     freopen((s + ".in").c_str(), "r", stdin);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
nautilus.cpp:74:12: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   74 |     freopen((s + ".out").c_str(), "w", stdout);
      |     ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 6988 KB Output is correct
2 Correct 6 ms 7036 KB Output is correct
3 Correct 6 ms 6988 KB Output is correct
4 Correct 6 ms 6988 KB Output is correct
5 Correct 6 ms 6988 KB Output is correct
6 Correct 6 ms 7064 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 6988 KB Output is correct
2 Correct 6 ms 7036 KB Output is correct
3 Correct 6 ms 6988 KB Output is correct
4 Correct 6 ms 6988 KB Output is correct
5 Correct 6 ms 6988 KB Output is correct
6 Correct 6 ms 7064 KB Output is correct
7 Correct 8 ms 6988 KB Output is correct
8 Correct 9 ms 6988 KB Output is correct
9 Correct 8 ms 6988 KB Output is correct
10 Correct 8 ms 6988 KB Output is correct
11 Correct 7 ms 6988 KB Output is correct
12 Correct 10 ms 6988 KB Output is correct
13 Correct 11 ms 6988 KB Output is correct
14 Correct 11 ms 7072 KB Output is correct
15 Correct 9 ms 6988 KB Output is correct
16 Correct 9 ms 7060 KB Output is correct
17 Correct 11 ms 6972 KB Output is correct
18 Correct 11 ms 6976 KB Output is correct
19 Correct 11 ms 6988 KB Output is correct
20 Correct 12 ms 7024 KB Output is correct
21 Correct 13 ms 6988 KB Output is correct

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 5 ms 6988 KB Output is correct
2 Correct 6 ms 7036 KB Output is correct
3 Correct 6 ms 6988 KB Output is correct
4 Correct 6 ms 6988 KB Output is correct
5 Correct 6 ms 6988 KB Output is correct
6 Correct 6 ms 7064 KB Output is correct
7 Correct 8 ms 6988 KB Output is correct
8 Correct 9 ms 6988 KB Output is correct
9 Correct 8 ms 6988 KB Output is correct
10 Correct 8 ms 6988 KB Output is correct
11 Correct 7 ms 6988 KB Output is correct
12 Correct 10 ms 6988 KB Output is correct
13 Correct 11 ms 6988 KB Output is correct
14 Correct 11 ms 7072 KB Output is correct
15 Correct 9 ms 6988 KB Output is correct
16 Correct 9 ms 7060 KB Output is correct
17 Correct 11 ms 6972 KB Output is correct
18 Correct 11 ms 6976 KB Output is correct
19 Correct 11 ms 6988 KB Output is correct
20 Correct 12 ms 7024 KB Output is correct
21 Correct 13 ms 6988 KB Output is correct
22 Execution timed out 1090 ms 158804 KB Time limit exceeded
23 Halted 0 ms 0 KB -