oj.uz

Submission #224174

# Submission time Handle Problem Language Result Execution time Memory
224174 2020-04-17T11:03:43 Z Haunted_Cpp Nautilus (BOI19_nautilus) C++17
66 / 100
 39 ms 9984 KB 
#include <iostream>
#include <algorithm>
#include <cmath>
#include <vector>
#include <set>
#include <map>
#include <unordered_set>
#include <unordered_map>
#include <queue>
#include <cassert>
#include <string>
#include <cstring>
#include <bitset>
 
#pragma GCC optimize ("Ofast")
#pragma GCC target("fma,sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
#pragma GCC optimize("unroll-loops")
 
#define FOR(i, a, b) for(int i = a; i < (int) b; i++)
#define F0R(i, a) FOR (i, 0, a)
#define ROF(i, a, b) for(int i = a; i >= (int) b; i--)
#define R0F(i, a) ROF(i, a, 0)
#define GO(i, a) for (auto i : a)
 
#define rsz resize
#define eb emplace_back
#define pb push_back
#define sz(x) (int) x.size()
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()
#define f first
#define s second
 
using namespace std;
 
typedef pair<int, int> pii;
typedef vector<int> vi;
typedef vector<pii> vpii;
typedef vector<vi> vvi;
typedef vector<vpii> vvpii;
typedef long long i64;
typedef vector<i64> vi64;
typedef vector<vi64> vvi64;
typedef pair<i64, i64> pi64;
typedef vector<pi64> vpi64;
 

const int dr[] = {+1, -1, +0, +0, +1, -1, +1, -1};
const int dc[] = {+0, +0, +1, -1, +1, -1, -1, +1};
const int ms[] = {+31, +29, +31, 30, +31, +30, +31, +31, +30, +31, +30, +31};
const int dir[] = {'S', 'N', 'E', 'W'};

const int R = 100 + 5;
const int M = 100 + 5;

int r, c, m;
int dp [R][R][M];
char g [R][R];

string w;

int dfs (int linha, int coluna, int comando) {
  assert (g[linha][coluna] != '#');
  if (comando >= m) return true;
  int &res = dp[linha][coluna][comando];
  if (~res) return res;
  res = 0;
  F0R (i, 4) {
    if (w[comando] != '?') if (w[comando] != dir[i]) continue;
    if (linha + dr[i] < 0 || linha + dr[i] >= r || coluna + dc[i] < 0 || coluna + dc[i] >= c) continue;
    if (g[linha + dr[i]][coluna + dc[i]] == '#') continue;
    res |= dfs (linha + dr[i], coluna + dc[i], comando + 1);
  }

  return res;
}

int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
 // F0R (i, R) F0R (j, R) dp[i][j] = 1e9;
  cin >> r >> c >> m;
  F0R (i, r) F0R (j, c) cin >> g[i][j];
  cin >> w;
  reverse(all(w));
  
  F0R (i, m) {
    if (w[i] == '?') continue;
    if (w[i] == 'N') w[i] = 'S';
    else if (w[i] == 'S') w[i] = 'N';
    else if (w[i] == 'E') w[i] = 'W';
    else w[i] = 'E';
  }

  int res = 0;
  memset (dp, -1, sizeof(dp));
  F0R (i, r) {
    F0R (j, c) {
      if (g[i][j] == '#') continue;
      
      if (dfs (i, j, 0)) {
        ++res;
      }
    }
  }
  cout << res << '\n';
  return 0;
}

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 4864 KB Output is correct
2 Correct 9 ms 4864 KB Output is correct
3 Correct 7 ms 4864 KB Output is correct
4 Correct 7 ms 4864 KB Output is correct
5 Correct 7 ms 4864 KB Output is correct
6 Correct 7 ms 4864 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 4864 KB Output is correct
2 Correct 9 ms 4864 KB Output is correct
3 Correct 7 ms 4864 KB Output is correct
4 Correct 7 ms 4864 KB Output is correct
5 Correct 7 ms 4864 KB Output is correct
6 Correct 7 ms 4864 KB Output is correct
7 Correct 29 ms 4864 KB Output is correct
8 Correct 11 ms 4864 KB Output is correct
9 Correct 8 ms 4864 KB Output is correct
10 Correct 7 ms 4864 KB Output is correct
11 Correct 7 ms 4864 KB Output is correct
12 Correct 34 ms 4864 KB Output is correct
13 Correct 34 ms 4864 KB Output is correct
14 Correct 27 ms 4864 KB Output is correct
15 Correct 8 ms 4992 KB Output is correct
16 Correct 7 ms 4992 KB Output is correct
17 Correct 32 ms 4864 KB Output is correct
18 Correct 39 ms 4864 KB Output is correct
19 Correct 14 ms 4864 KB Output is correct
20 Correct 10 ms 4864 KB Output is correct
21 Correct 7 ms 4864 KB Output is correct

Subtask #3
0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 24 ms 4864 KB Output is correct
2 Correct 9 ms 4864 KB Output is correct
3 Correct 7 ms 4864 KB Output is correct
4 Correct 7 ms 4864 KB Output is correct
5 Correct 7 ms 4864 KB Output is correct
6 Correct 7 ms 4864 KB Output is correct
7 Correct 29 ms 4864 KB Output is correct
8 Correct 11 ms 4864 KB Output is correct
9 Correct 8 ms 4864 KB Output is correct
10 Correct 7 ms 4864 KB Output is correct
11 Correct 7 ms 4864 KB Output is correct
12 Correct 34 ms 4864 KB Output is correct
13 Correct 34 ms 4864 KB Output is correct
14 Correct 27 ms 4864 KB Output is correct
15 Correct 8 ms 4992 KB Output is correct
16 Correct 7 ms 4992 KB Output is correct
17 Correct 32 ms 4864 KB Output is correct
18 Correct 39 ms 4864 KB Output is correct
19 Correct 14 ms 4864 KB Output is correct
20 Correct 10 ms 4864 KB Output is correct
21 Correct 7 ms 4864 KB Output is correct
22 Runtime error 16 ms 9984 KB Execution killed with signal 11 (could be triggered by violating memory limits)
23 Halted 0 ms 0 KB -