oj.uz

Submission #926008

# Submission time Handle Problem Language Result Execution time Memory
926008 2024-02-12T12:50:03 Z Pragmatism Nautilus (BOI19_nautilus) C++17
100 / 100
 99 ms 1000 KB 
//Bismillahir-Rahmanir-Rahim

#include <bits/stdc++.h>
#pragma comment(linker, "/stack:200000000")
#pragma GCC optimize("O1,O2,O3,Ofast,unroll-loops")
#pragma GCC target("sse,sse2,sse3,sse4,sse4.1,sse4.2,popcnt,avx,avx2")

#define pb push_back
#define pii pair <int, int>
#define pll pair <long long, long long>
#define pld pair <long double, long double>
#define ll long long
#define ld long double
#define x first
#define y second
#define all(v) v.begin(),v.end()
#define sz(s) (int)s.size()
#define skip continue
#define bpop(x) (ll)__builtin_popcountll(x)

using namespace std;

const int N = 5e2 + 7;
const int M = 5e3 + 7;
const int maxA = 2e6 + 7;
const int inf = 1e9 + 7;
const ll INF = 2e18 + 7;
const int MOD = 1e9 + 7;
const ld eps = 1e-9;

pii dir[] = {{0, 1}, {1, 0}, {0, -1}, {-1, 0}};

//mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

#define int long long

int n, m, k;
bool border(int i, int j) {
    return i >= 1 && i <= n && j >= 1 && j <= m;
}
int id[255];
bitset <N> fn[N], dp[N], dp2[N];
char s[M];
void shiftWE(char type) {
    for (int i = 1;i <= n;i++)dp2[i] = (dp2[i] | ((type == 'W' ? (dp[i] >> 1) : (dp[i] << 1)) & fn[i]));
}
void shiftNS(char type) {
    for (int i = 1;i <= n;i++)dp2[i] = (dp2[i] | ((type == 'N' ? dp[i + 1] : dp[i - 1]) & fn[i]));
}
void solve() {
    cin >> n >> m >> k;
    for (int i = 1;i <= n;i++) {
        for (int j = 1;j <= m;j++) {
            char c;
            cin >> c;
            fn[i][j] = (c == '.' ? 1 : 0);
        }
    }
    for (int i = 1;i <= k;i++)cin >> s[i];
    id['W'] = 0, id['N'] = 1, id['E'] = 2, id['S'] = 3;
    int ans = 0;
    for (int i = 1;i <= n;i++) {
        for (int j = 1;j <= m;j++) {
            if (fn[i][j])dp[i][j] = 1;
        }
    };
    for (int step = 1;step <= k;step++) {
        //cout << step << ":\n";
        if (s[step] == '?')shiftWE('W'), shiftWE('E'), shiftNS('N'), shiftNS('S');
        else {
            char type = s[step];
            if (type == 'E' || type == 'W')shiftWE(type);
            else shiftNS(type);
        }
        for (int i = 1;i <= n;i++)dp[i] = dp2[i], dp2[i].reset();
    }
    for (int i = 1;i <= n;i++)ans += dp[i].count();
    cout << ans;
}
signed main() {
    //srand(time(NULL));
    ios_base::sync_with_stdio(0);
    cout.tie(0);
    //freopen("tests.in", "r", stdin);
    //freopen("milkorder.out", "w", stdout);
    int test = 1;
    //cin >> test;
    for (int t = 1;t <= test;t++) {
        //cout << "Case " << t << ": ";
        solve();
    }
    return 0;
}

Compilation message

nautilus.cpp:4: warning: ignoring '#pragma comment ' [-Wunknown-pragmas]
    4 | #pragma comment(linker, "/stack:200000000")
      |

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 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 376 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 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 376 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 348 KB Output is correct
9 Correct 2 ms 368 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 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 344 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 344 KB Output is correct
4 Correct 1 ms 348 KB Output is correct
5 Correct 1 ms 376 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 348 KB Output is correct
9 Correct 2 ms 368 KB Output is correct
10 Correct 1 ms 348 KB Output is correct
11 Correct 1 ms 348 KB Output is correct
12 Correct 1 ms 348 KB Output is correct
13 Correct 1 ms 344 KB Output is correct
14 Correct 1 ms 348 KB Output is correct
15 Correct 1 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 344 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 57 ms 600 KB Output is correct
23 Correct 53 ms 604 KB Output is correct
24 Correct 53 ms 792 KB Output is correct
25 Correct 54 ms 784 KB Output is correct
26 Correct 50 ms 788 KB Output is correct
27 Correct 75 ms 784 KB Output is correct
28 Correct 82 ms 784 KB Output is correct
29 Correct 78 ms 1000 KB Output is correct
30 Correct 80 ms 792 KB Output is correct
31 Correct 74 ms 792 KB Output is correct
32 Correct 99 ms 788 KB Output is correct
33 Correct 97 ms 600 KB Output is correct
34 Correct 96 ms 788 KB Output is correct
35 Correct 95 ms 736 KB Output is correct
36 Correct 94 ms 604 KB Output is correct