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ID题目提交者结果用时内存语言文件大小提交时间测评时间
#196836#5605. A-Mazing PuzzleKKT89AC ✓472ms53600kbC++173.6kb2023-10-02 00:30:292023-10-02 00:30:29

Judging History

你现在查看的是最新测评结果

  • [2023-10-02 00:30:29]
  • 评测
  • 测评结果:AC
  • 用时:472ms
  • 内存:53600kb
  • [2023-10-02 00:30:29]
  • 提交

answer

#pragma GCC optimize("Ofast")
#include <bits/stdc++.h>
using namespace std;
typedef long long int ll;
typedef unsigned long long int ull;

mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());
ll myRand(ll B) {
    return (ull)rng() % B;
}
inline double time() {
    return static_cast<long double>(chrono::duration_cast<chrono::nanoseconds>(chrono::steady_clock::now().time_since_epoch()).count()) * 1e-9;
}

int dir(char c) {
    if (c == 'N') return 0;
    else if (c == 'E') return 1;
    else if (c == 'S') return 2;
    else return 3;
}

int dx[] = {1, 0, -1, 0};
int dy[] = {0, 1, 0, -1};

bool wall[51][51][4];
pair<int,int> dp[2501][2501];

int main(){
    cin.tie(nullptr);
    ios::sync_with_stdio(false);
    int w,h; cin >> w >> h;
    int e; cin >> e; e -= 1;

    int y1,x1,d1; cin >> y1 >> x1;
    y1 -= 1; x1 -= 1;
    char cd; cin >> cd;
    d1 = dir(cd);

    int y2,x2,d2; cin >> y2 >> x2;
    y2 -= 1; x2 -= 1; cin >> cd;
    d2 = dir(cd);

    for (int i = 0; i < w; ++i) {
        wall[h-1][i][0] = true;
        wall[0][i][2] = true;
    }
    for (int i = 0; i < h; ++i) {
        wall[i][0][3] = true;
        wall[i][w-1][1] = true;
    }
    wall[0][e][2] = false;

    int n; cin >> n;
    for (int i = 0; i < n; ++i) {
        int y,x; cin >> y >> x;
        y -= 1; x -= 1;
        wall[x][y][0] = true;
        wall[x+1][y][2] = true;
    }
    cin >> n;
    for (int i = 0; i < n; ++i) {
        int y,x; cin >> y >> x;
        y -= 1; x -= 1;
        wall[x][y][1] = true;
        wall[x][y+1][3] = true;
    }

    n = h*w;
    auto idx = [&](int x, int y) -> int {
        return x*w + y;
    };
    auto f = [&](int pl, int d) -> int {
        if (pl == n) return n;
        int x = pl/w, y = pl%w;
        if (wall[x][y][d]) return pl;
        x += dx[d], y += dy[d];
        if (x == -1) return n;
        return idx(x,y);
    };


    deque<pair<int,int>> dq[2];
    {
        int a = idx(x1, y1);
        int b = idx(x2, y2);
        for (int i = 0; i < 2501; ++i) {
            for (int j = 0; j < 2501; ++j) {
                dp[i][j] = {1e9, 1e9};
            }
        }
        dp[a][b] = {0, 0};
        dq[0].push_front({a, b});
    }
    int cur = 0;

    while (1) {
        if (dq[cur].size() == 0) cur ^= 1;
        if (dq[cur].size() == 0) break;
        auto p = dq[cur].front(); dq[cur].pop_front();
        if (p.first == n and p.second == n) break;
//        cout << p.first << " " << p.second << endl;
        auto pre = dp[p.first][p.second];
        for (int i = 0; i < 4; ++i) {
            int nd1 = (d1 + i) % 4;
            int nd2 = (d2 + i) % 4;

            pair<int,int> pp = {f(p.first, nd1), f(p.second, nd2)};
//            cout << " " << pp.first << " " << pp.second << endl;
            if (p.first == pp.first and p.second == pp.second) continue;
            int crh = (p.first == pp.first and p.first != n) + (p.second == pp.second and p.second != n);
            if (p.first == pp.second and p.second == pp.first) continue;
            if (p.second == pp.first and p.first == pp.second) continue;
            if (pp.second != n and pp.first == pp.second) continue;

            pair<int,int> cost = {pre.first+1, pre.second+crh};
            if (dp[pp.first][pp.second] > cost) {
                dp[pp.first][pp.second] = cost;
                if (crh) dq[cur^1].push_back(pp);
                else dq[cur^1].push_front(pp);
            }
        }
    }


    cout << dp[h*w][h*w].first << " " << dp[h*w][h*w].second << endl;
}

详细

Test #1:

score: 100
Accepted
time: 0ms
memory: 52360kb

input:

7 4 4
3 2 S 6 3 S
6 1 1 1 2 1 3 2 3 5 1 5 3
11 2 1 3 1 3 2 5 2 6 2 2 3 4 3 5 3 6 3 3 4 6 4

output:

8 1

result:

ok single line: '8 1'

Test #2:

score: 0
Accepted
time: 3ms
memory: 52452kb

input:

3 4 2
1 3 S 3 2 S
1 3 3
5 1 1 2 1 1 2 1 3 2 3

output:

7 2

result:

ok single line: '7 2'

Test #3:

score: 0
Accepted
time: 470ms
memory: 53380kb

input:

50 50 4
15 28 W 9 43 E
49 11 47 42 33 3 4 36 49 21 21 15 34 43 5 32 35 3 21 7 1 40 4 22 44 11 40 46 43 13 26 32 6 44 25 31 46 26 7 45 4 18 10 10 21 3 20 31 8 34 40 42 1 48 43 18 17 9 39 17 2 48 25 39 35 45 43 8 2 22 17 6 46 33 1 38 6 28 25 29 32 45 12 11 20 8 48 14 9 2 24 45 38 1 20 34 5 46 24
50 13...

output:

91 52

result:

ok single line: '91 52'

Test #4:

score: 0
Accepted
time: 141ms
memory: 53104kb

input:

50 50 25
1 50 N 50 50 E
1 45 25
1 16 37

output:

100 26

result:

ok single line: '100 26'

Test #5:

score: 0
Accepted
time: 3ms
memory: 52392kb

input:

10 10 1
10 1 N 10 2 N
0
81 9 1 9 2 9 3 9 4 9 5 9 6 9 7 9 8 9 9 8 10 8 9 8 8 8 7 8 6 8 5 8 4 8 3 8 2 7 1 7 2 7 3 7 4 7 5 7 6 7 7 7 8 7 9 6 10 6 9 6 8 6 7 6 6 6 5 6 4 6 3 6 2 5 1 5 2 5 3 5 4 5 5 5 6 5 7 5 8 5 9 4 10 4 9 4 8 4 7 4 6 4 5 4 4 4 3 4 2 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 2 10 2 9 2 8 2 7 2...

output:

120 4

result:

ok single line: '120 4'

Test #6:

score: 0
Accepted
time: 4ms
memory: 52304kb

input:

3 3 1
3 1 N 3 2 N
0
4 1 2 1 3 2 1 2 2

output:

13 4

result:

ok single line: '13 4'

Test #7:

score: 0
Accepted
time: 0ms
memory: 52388kb

input:

4 3 1
4 1 N 4 2 N
0
6 1 2 1 3 2 1 2 2 3 2 3 3

output:

15 4

result:

ok single line: '15 4'

Test #8:

score: 0
Accepted
time: 3ms
memory: 52416kb

input:

5 5 1
2 4 N 2 1 S
2 2 2 2 4
3 1 1 1 3 3 3

output:

9 4

result:

ok single line: '9 4'

Test #9:

score: 0
Accepted
time: 3ms
memory: 52356kb

input:

5 6 5
4 1 E 5 2 S
3 4 1 3 1 2 1
3 4 2 4 3 4 4

output:

11 2

result:

ok single line: '11 2'

Test #10:

score: 0
Accepted
time: 8ms
memory: 52356kb

input:

4 4 3
1 2 E 4 1 W
2 3 2 4 1
5 1 1 2 1 1 3 3 2 3 3

output:

5 2

result:

ok single line: '5 2'

Test #11:

score: 0
Accepted
time: 0ms
memory: 52296kb

input:

10 10 2
1 1 E 6 1 W
1 6 1
1 1 1

output:

8 4

result:

ok single line: '8 4'

Test #12:

score: 0
Accepted
time: 0ms
memory: 52300kb

input:

10 10 2
1 1 E 3 1 W
3 5 5 5 6 5 7
3 9 8 9 7 9 6

output:

6 1

result:

ok single line: '6 1'

Test #13:

score: 0
Accepted
time: 3ms
memory: 52412kb

input:

4 8 2
2 4 S 2 6 S
1 2 2
1 2 5

output:

8 1

result:

ok single line: '8 1'

Test #14:

score: 0
Accepted
time: 0ms
memory: 52352kb

input:

5 10 1
3 2 E 5 2 E
2 3 2 5 2
2 1 1 1 2

output:

9 3

result:

ok single line: '9 3'

Test #15:

score: 0
Accepted
time: 3ms
memory: 52308kb

input:

10 10 2
2 3 S 3 3 E
4 2 1 3 1 2 2 3 2
3 1 2 2 2 3 2

output:

11 2

result:

ok single line: '11 2'

Test #16:

score: 0
Accepted
time: 0ms
memory: 52388kb

input:

1 5 1
1 2 S 1 3 S
1 1 4
0

output:

3 0

result:

ok single line: '3 0'

Test #17:

score: 0
Accepted
time: 472ms
memory: 53600kb

input:

50 50 49
14 39 N 30 28 N
50 1 3 30 21 26 11 32 37 7 14 46 49 44 46 17 16 46 38 42 25 7 9 38 29 22 15 6 20 20 34 49 7 48 27 19 18 27 8 29 17 22 41 11 8 6 43 20 29 13 47 14 46 31 43 18 43 40 28 39 35 2 13 31 47 23 35 37 46 3 1 18 11 9 39 31 22 28 12 15 14 24 23 35 47 16 3 13 19 35 5 6 30 18 46 44 2 30...

output:

74 0

result:

ok single line: '74 0'

Test #18:

score: 0
Accepted
time: 358ms
memory: 53340kb

input:

50 50 28
39 24 W 50 30 N
48 4 35 19 38 23 43 12 49 26 35 20 40 24 9 29 41 2 16 23 36 26 40 45 5 31 10 41 49 34 44 39 4 2 8 40 11 10 40 10 13 18 6 18 28 2 4 17 22 41 38 20 29 6 35 35 20 42 47 32 21 20 38 17 33 42 45 21 4 39 32 49 32 26 3 11 28 12 6 28 47 2 42 29 14 22 23 34 40 47 23 47 26 39 16 1 17
...

output:

67 29

result:

ok single line: '67 29'

Test #19:

score: 0
Accepted
time: 170ms
memory: 53184kb

input:

50 50 31
17 31 S 9 3 S
48 43 19 48 37 39 21 27 23 9 22 35 3 35 15 15 20 18 2 48 3 8 25 28 44 33 23 36 21 49 27 22 12 34 14 30 32 25 17 45 38 41 36 3 17 47 18 34 17 4 38 20 28 21 41 17 6 11 10 1 11 8 41 43 32 30 9 11 2 2 29 3 46 39 20 34 5 29 22 38 3 11 32 8 29 2 33 10 19 37 3 47 37 1 9 29 27
48 18 4...

output:

53 8

result:

ok single line: '53 8'

Test #20:

score: 0
Accepted
time: 346ms
memory: 53328kb

input:

50 50 35
47 40 N 20 27 N
50 38 4 24 32 7 49 46 46 35 15 5 10 2 21 6 48 38 31 25 24 34 16 16 34 41 6 40 37 8 9 11 28 29 18 13 12 5 18 32 40 17 11 38 28 31 8 13 31 41 10 42 23 27 4 28 20 40 49 8 25 33 13 11 49 15 30 14 27 15 22 31 10 10 6 30 3 42 7 46 16 14 1 37 17 8 17 24 2 41 11 35 14 46 45 26 21 12...

output:

68 18

result:

ok single line: '68 18'

Test #21:

score: 0
Accepted
time: 7ms
memory: 52360kb

input:

10 10 1
3 1 N 3 2 N
0
81 9 1 9 2 9 3 9 4 9 5 9 6 9 7 9 8 9 9 8 10 8 9 8 8 8 7 8 6 8 5 8 4 8 3 8 2 7 1 7 2 7 3 7 4 7 5 7 6 7 7 7 8 7 9 6 10 6 9 6 8 6 7 6 6 6 5 6 4 6 3 6 2 5 1 5 2 5 3 5 4 5 5 5 6 5 7 5 8 5 9 4 10 4 9 4 8 4 7 4 6 4 5 4 4 4 3 4 2 3 1 3 2 3 3 3 4 3 5 3 6 3 7 3 8 3 9 2 10 2 9 2 8 2 7 2 6...

output:

42 4

result:

ok single line: '42 4'

Test #22:

score: 0
Accepted
time: 3ms
memory: 52416kb

input:

4 4 1
4 1 N 4 2 N
0
9 1 1 1 2 1 3 2 2 2 3 2 4 3 1 3 2 3 3

output:

24 4

result:

ok single line: '24 4'

Test #23:

score: 0
Accepted
time: 0ms
memory: 52320kb

input:

50 50 1
1 50 N 50 50 E
0
0

output:

100 1

result:

ok single line: '100 1'

Test #24:

score: 0
Accepted
time: 102ms
memory: 52836kb

input:

50 50 28
39 24 W 50 30 N
0
1 40 17

output:

67 28

result:

ok single line: '67 28'

Test #25:

score: 0
Accepted
time: 12ms
memory: 52372kb

input:

25 25 14
19 12 W 25 15 N
0
1 20 8

output:

34 13

result:

ok single line: '34 13'

Test #26:

score: 0
Accepted
time: 4ms
memory: 52384kb

input:

25 16 14
19 9 W 25 12 N
0
1 20 5

output:

31 13

result:

ok single line: '31 13'

Test #27:

score: 0
Accepted
time: 4ms
memory: 52400kb

input:

12 16 1
6 9 W 12 12 N
0
1 7 5

output:

31 13

result:

ok single line: '31 13'