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Submission #698679

# Submission time Handle Problem Language Result Execution time Memory
698679 2023-02-14T07:31:42 Z Cyanmond L-triominoes (CEOI21_ltriominoes) C++17
10 / 100
 8000 ms 524288 KB 
#include <bits/stdc++.h>

using i64 = long long;

struct Point {
    i64 x;
    i64 y;
};

constexpr int N = 1 << 13;

int main() {
    i64 W, H;
    int K;
    std::cin >> W >> H >> K;
    std::vector<Point> points(K);
    std::map<i64, int> mEx;
    for (auto &[x, y] : points) {
        std::cin >> x >> y;
        --x;
        --y;
        mEx[y] |= 1 << x;
    }

    auto searchNext = [&](int s) {
        static std::array<std::vector<int>, N> g;
        static std::vector<int> seen(N);

        if (seen[s]) {
            return g[s];
        }
        seen[s] = true;

        auto dfs = [&](auto &&self, int t, int b) -> void {
            if (b >= W) {
                g[s].push_back(t);
                return;
            }
            if (s & (1 << b)) {
                self(self, t, b + 1);
                return;
            }
            if (b != 0) {
                if (not (t & (1 << (b - 1)))) {
                    int newT = t;
                    newT |= 1 << (b - 1);
                    newT |= 1 << b;
                    self(self, newT, b + 1);
                }
            }
            if (b != W - 1) {
                if (s & (1 << (b + 1))) {
                    int newT = t;
                    newT |= 1 << b;
                    newT |= 1 << (b + 1);
                    self(self, newT, b + 2);
                } else {
                    int newT = t;
                    newT |= 1 << b;
                    self(self, newT, b + 2);
                    newT = t;
                    newT |= 1 << (b + 1);
                    self(self, newT, b + 2);
                }
            }
        };
        dfs(dfs, 0, 0);
        return g[s];
    };

    std::vector dp(1 << W, false);
    dp[(1 << W) - 1] = true;
    for (int i = 0; i < H; ++i) {
        std::vector ndp(1 << W, false);
        for (int s = 0; s < (1 << W); ++s) {
            if (not dp[s]) {
                continue;
            }
            const int b = mEx[i];
            const auto g = searchNext(s);
            for (const auto t : g) {
                if ((t & b) != 0) {
                    continue;
                }
                ndp[t | b] = true;
            }
        }
        dp = std::move(ndp);
    }
    std::cout << (dp[(1 << W) - 1] ? "YES" : "NO") << std::endl;
}

Subtask #1
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 15 ms 688 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 30 ms 596 KB Output is correct
12 Correct 2 ms 596 KB Output is correct
13 Correct 0 ms 468 KB Output is correct
14 Correct 0 ms 468 KB Output is correct
15 Correct 3 ms 724 KB Output is correct
16 Correct 280 ms 1744 KB Output is correct
17 Correct 30 ms 596 KB Output is correct
18 Correct 134 ms 1116 KB Output is correct
19 Correct 3 ms 596 KB Output is correct
20 Correct 303 ms 1716 KB Output is correct
21 Correct 129 ms 1004 KB Output is correct
22 Correct 1 ms 596 KB Output is correct
23 Correct 3 ms 564 KB Output is correct
24 Correct 2 ms 596 KB Output is correct
25 Correct 333 ms 1844 KB Output is correct
26 Correct 372 ms 1748 KB Output is correct
27 Correct 1 ms 468 KB Output is correct

Subtask #2
0 / 7.0

# Verdict Execution time Memory Grader output
1 Execution timed out 8029 ms 66320 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Runtime error 4271 ms 524288 KB Execution killed with signal 9
2 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Execution timed out 8053 ms 397324 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 35.0

# Verdict Execution time Memory Grader output
1 Execution timed out 8038 ms 66632 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 596 KB Output is correct
2 Correct 1 ms 468 KB Output is correct
3 Correct 1 ms 468 KB Output is correct
4 Correct 1 ms 468 KB Output is correct
5 Correct 1 ms 468 KB Output is correct
6 Correct 1 ms 596 KB Output is correct
7 Correct 1 ms 468 KB Output is correct
8 Correct 15 ms 688 KB Output is correct
9 Correct 1 ms 468 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 30 ms 596 KB Output is correct
12 Correct 2 ms 596 KB Output is correct
13 Correct 0 ms 468 KB Output is correct
14 Correct 0 ms 468 KB Output is correct
15 Correct 3 ms 724 KB Output is correct
16 Correct 280 ms 1744 KB Output is correct
17 Correct 30 ms 596 KB Output is correct
18 Correct 134 ms 1116 KB Output is correct
19 Correct 3 ms 596 KB Output is correct
20 Correct 303 ms 1716 KB Output is correct
21 Correct 129 ms 1004 KB Output is correct
22 Correct 1 ms 596 KB Output is correct
23 Correct 3 ms 564 KB Output is correct
24 Correct 2 ms 596 KB Output is correct
25 Correct 333 ms 1844 KB Output is correct
26 Correct 372 ms 1748 KB Output is correct
27 Correct 1 ms 468 KB Output is correct
28 Execution timed out 8029 ms 66320 KB Time limit exceeded
29 Halted 0 ms 0 KB -