oj.uz

Submission #931063

# Submission time Handle Problem Language Result Execution time Memory
931063 2024-02-21T07:30:13 Z efedmrlr Nautilus (BOI19_nautilus) C++17
100 / 100
 208 ms 1112 KB 
#include <bits/stdc++.h>

using namespace std;


#define lli long long int
#define MP make_pair
#define pb push_back
#define REP(i,n) for(int i = 0; (i) < (n); (i)++)
#define all(x) x.begin(), x.end()
#define rall(x) x.rbegin(), x.rend()


void fastio() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
}


const double EPS = 0.00001;
const int INF = 1e9+500;
const int N = 505;
const int M = 5005;
const int ALPH = 26;
const int LGN = 25;
constexpr int MOD = 1e9+7;
int r,c,m;
vector<array<int,2> > direct = {{1, 0}, {-1, 0}, {0, 1}, {0, -1}}; // 0 - down, 1 - up, 2 - right, 3 - left
vector<bitset<N> > gr(N, bitset<N>());
vector<int> seq(1,10);
vector<bitset<N> > dp, dpn;
bitset<N> empt;
inline void solve() {
    cin >> r >> c >> m;
    for(int i = 1; i<= r; i++) {
        for(int j = 1; j <= c; j++) {
            char tmp;
            cin >> tmp;
            if(tmp == '.') {
                gr[i][j] = 1;
            }
            
        }
    }
    for(int i = 1; i<=m; i++) {
        char tmp;
        cin >> tmp;
        if(tmp == 'S') {
            seq.pb(1);
        }
        else if(tmp == 'N') {
            seq.pb(0);
        }
        else if(tmp == 'E') {
            seq.pb(3);
        }
        else if(tmp == 'W') {
            seq.pb(2);
        }
        else {
            seq.pb(4);
        }
    
        
    }
    dp.assign(r + 3, bitset<N>());
    dpn.assign(r + 3, bitset<N>());
    
    for(int i = 1; i <= r; i++) {
        dp[i] = gr[i];
    }
    for(int k = 1; k <= m; k++) {
        for(int i = 1; i<=r; i++) {
            dp[i] &= gr[i];
            dpn[i] = empt;
        }
        if(seq[k] == 0 || seq[k] == 4) {
            for(int i = 1; i <= r; i++) {
                dpn[i] = dpn[i] | dp[i + 1];
            }
        }
        if(seq[k] == 1 || seq[k] == 4) {
            for(int i = 1; i <= r; i++) {
                dpn[i] = dpn[i] | dp[i - 1];
            }
        }
        if(seq[k] == 2 || seq[k] == 4) {
            for(int i = 1; i<=r; i++) {
                dpn[i] = dpn[i] | (dp[i] >> 1);
            }
        }
        if(seq[k] == 3 || seq[k] == 4) {
            for(int i = 1; i<=r; i++) {
                dpn[i] = dpn[i] | (dp[i] << 1);
            }
        } 
        
        swap(dp, dpn);
    }
    int ans = 0;
    for(int i = 1; i<=r; i++) {
        dp[i] &= gr[i];
    }
    for(int i = 1; i<=r; i++) {
        for(int j = 1; j <= c; j++) {
                ans += dp[i][j]; 
        }
    }
    cout << ans << "\n";
}
 
signed main() {

    fastio();
    int test = 1;
    //cin>>test;
    while(test--) {
        solve();
    }
    
}

Subtask #1
29.0 / 29.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct

Subtask #2
37.0 / 37.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 496 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 2 ms 508 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 2 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct

Subtask #3
34.0 / 34.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 348 KB Output is correct
2 Correct 1 ms 348 KB Output is correct
3 Correct 1 ms 348 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 348 KB Output is correct
6 Correct 1 ms 348 KB Output is correct
7 Correct 1 ms 348 KB Output is correct
8 Correct 1 ms 344 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 496 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 2 ms 508 KB Output is correct
14 Correct 1 ms 600 KB Output is correct
15 Correct 2 ms 348 KB Output is correct
16 Correct 1 ms 348 KB Output is correct
17 Correct 1 ms 348 KB Output is correct
18 Correct 1 ms 348 KB Output is correct
19 Correct 1 ms 348 KB Output is correct
20 Correct 1 ms 348 KB Output is correct
21 Correct 1 ms 348 KB Output is correct
22 Correct 108 ms 1112 KB Output is correct
23 Correct 108 ms 832 KB Output is correct
24 Correct 108 ms 832 KB Output is correct
25 Correct 108 ms 832 KB Output is correct
26 Correct 102 ms 836 KB Output is correct
27 Correct 160 ms 604 KB Output is correct
28 Correct 162 ms 836 KB Output is correct
29 Correct 160 ms 832 KB Output is correct
30 Correct 160 ms 836 KB Output is correct
31 Correct 158 ms 836 KB Output is correct
32 Correct 208 ms 600 KB Output is correct
33 Correct 198 ms 600 KB Output is correct
34 Correct 198 ms 836 KB Output is correct
35 Correct 200 ms 604 KB Output is correct
36 Correct 205 ms 832 KB Output is correct