Submission #312967

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
312967	2020-10-14T20:31:12 Z	fergonzgut21	Mecho (IOI09_mecho)	C++14	67 / 100	1000 ms	9336 KB

mecho

#include <iostream>
#include <queue>
#define MAX 802
using namespace std;

struct bee
{
    short int x;
    short int y;
    int t;
    int r;
};

int N, S, sx, sy, ex, ey, B[MAX][MAX], vis[MAX][MAX][2], rilres = -1;
char A[MAX][MAX];
queue <bee> qiu;
bee temp;

void solve ()
{
    while (!qiu.empty())
    {
        temp = qiu.front();
        qiu.pop();
        temp.t++;
        if (temp.t > N * N / 3)
        {
            return;
        }
        if (B[temp.x - 1][temp.y] == -1 && A[temp.x - 1][temp.y] != 'T' && A[temp.x - 1][temp.y] != 'D')
        {
            B[temp.x - 1][temp.y] = temp.t;
            temp.x--;
            qiu.push(temp);
            temp.x++;
        }
        if (B[temp.x + 1][temp.y] == -1 && A[temp.x + 1][temp.y] != 'T' && A[temp.x + 1][temp.y] != 'D')
        {
            B[temp.x + 1][temp.y] = temp.t;
            temp.x++;
            qiu.push(temp);
            temp.x--;
        }
        if (B[temp.x][temp.y - 1] == -1 && A[temp.x][temp.y - 1] != 'T' && A[temp.x][temp.y - 1] != 'D')
        {
            B[temp.x][temp.y - 1] = temp.t;
            temp.y--;
            qiu.push(temp);
            temp.y++;
        }
        if (B[temp.x][temp.y + 1] == -1 && A[temp.x][temp.y + 1] != 'T' && A[temp.x][temp.y + 1] != 'D')
        {
            B[temp.x][temp.y + 1] = temp.t;
            temp.y++;
            qiu.push(temp);
            temp.y--;
        }
    }
}

int solve2(int x, int y, int t, int r)
{
    temp.x = x;
    temp.y = y;
    temp.t = t;
    temp.r = r;
    qiu.push(temp);
    while (!qiu.empty())
    {
        temp = qiu.front();
        qiu.pop();
        if (temp.x == ex && temp.y == ey)
            rilres = max(rilres,temp.r);
        if (vis[temp.x][temp.y][1] != temp.r && (temp.x != sx || temp.y != sy))
            continue;
        if (vis[temp.x][temp.y][0] != temp.t && (temp.x != sx || temp.y != sy))
            continue;
        if (temp.r + (temp.t / S) >= B[temp.x][temp.y])
            temp.r -= ((temp.r + (temp.t / S)) - B[temp.x][temp.y] + 1);
        if (temp.r < 0 || temp.r <= rilres)
            continue;
        temp.t++;
        if (vis[temp.x + 1][temp.y][1] < temp.r && A[temp.x + 1][temp.y] != 'T')
        {
                vis[temp.x + 1][temp.y][1] = temp.r;
                vis[temp.x + 1][temp.y][0] = temp.t;
                temp.x++;
                qiu.push(temp);
                temp.x--;
        }
        if (vis[temp.x - 1][temp.y][1] < temp.r && A[temp.x - 1][temp.y] != 'T')
        {
                vis[temp.x - 1][temp.y][1] = temp.r;
                vis[temp.x - 1][temp.y][0] = temp.t;
                temp.x--;
                qiu.push(temp);
                temp.x++;
        }
        if (vis[temp.x][temp.y + 1][1] < temp.r && A[temp.x][temp.y + 1] != 'T')
        {
                vis[temp.x][temp.y + 1][1] = temp.r;
                vis[temp.x][temp.y + 1][0] = temp.t;
                temp.y++;
                qiu.push(temp);
                temp.y--;
        }
        if (vis[temp.x][temp.y - 1][1] < temp.r && A[temp.x][temp.y - 1] != 'T')
        {
                vis[temp.x][temp.y - 1][1] = temp.r;
                vis[temp.x][temp.y - 1][0] = temp.t;
                temp.y--;
                qiu.push(temp);
                temp.y++;
        }
    }
    return -1;
}

int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin >> N >> S;
    for (int i = 1; i <= N; i++)
        for (int j = 1; j <= N; j++)
        {
            cin >> A[i][j];
            vis[i][j][1] = -1;
            vis[i][j][0] = 32700;
            B[i][j] = -1;
            if (A[i][j] == 'M')
            {
                sx = i;
                sy = j;
            }
            if (A[i][j] == 'D')
            {
                ex = i;
                ey = j;
            }
            if (A[i][j] == 'H')
            {
                temp.x = i;
                temp.y = j;
                temp.t = 0;
                B[i][j] = 0;
                qiu.push(temp);
            }
        }
    solve();
    vis[sx][sy][1] = 32700;
    vis[sx][sy][0] = 0;
    solve2(sx, sy, 0, B[sx][sy] - 1);
    cout << rilres;
    return 0;
}

Subtask #1

67.0 / 100.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	0 ms	384 KB	Output is correct
2	Correct	0 ms	384 KB	Output is correct
3	Correct	0 ms	384 KB	Output is correct
4	Correct	1 ms	384 KB	Output is correct
5	Correct	1 ms	384 KB	Output is correct
6	Correct	1 ms	384 KB	Output is correct
7	Correct	45 ms	8704 KB	Output is correct
8	Correct	1 ms	512 KB	Output is correct
9	Correct	1 ms	512 KB	Output is correct
10	Correct	1 ms	512 KB	Output is correct
11	Correct	0 ms	512 KB	Output is correct
12	Correct	1 ms	896 KB	Output is correct
13	Correct	1 ms	768 KB	Output is correct
14	Correct	1 ms	896 KB	Output is correct
15	Incorrect	0 ms	512 KB	Output isn't correct
16	Correct	0 ms	512 KB	Output is correct
17	Incorrect	0 ms	512 KB	Output isn't correct
18	Correct	1 ms	512 KB	Output is correct
19	Incorrect	1 ms	640 KB	Output isn't correct
20	Correct	1 ms	640 KB	Output is correct
21	Incorrect	1 ms	640 KB	Output isn't correct
22	Correct	1 ms	640 KB	Output is correct
23	Incorrect	1 ms	768 KB	Output isn't correct
24	Correct	1 ms	768 KB	Output is correct
25	Incorrect	1 ms	896 KB	Output isn't correct
26	Correct	1 ms	896 KB	Output is correct
27	Incorrect	1 ms	896 KB	Output isn't correct
28	Correct	1 ms	896 KB	Output is correct
29	Incorrect	1 ms	896 KB	Output isn't correct
30	Correct	1 ms	896 KB	Output is correct
31	Incorrect	1 ms	1024 KB	Output isn't correct
32	Correct	1 ms	1024 KB	Output is correct
33	Incorrect	5 ms	3968 KB	Output isn't correct
34	Correct	5 ms	3968 KB	Output is correct
35	Correct	99 ms	4088 KB	Output is correct
36	Incorrect	6 ms	4480 KB	Output isn't correct
37	Correct	6 ms	4480 KB	Output is correct
38	Correct	148 ms	4728 KB	Output is correct
39	Incorrect	8 ms	4992 KB	Output isn't correct
40	Correct	8 ms	4992 KB	Output is correct
41	Correct	212 ms	5112 KB	Output is correct
42	Incorrect	9 ms	5504 KB	Output isn't correct
43	Correct	9 ms	5504 KB	Output is correct
44	Correct	292 ms	5752 KB	Output is correct
45	Incorrect	10 ms	5888 KB	Output isn't correct
46	Correct	10 ms	6016 KB	Output is correct
47	Correct	394 ms	6392 KB	Output is correct
48	Incorrect	14 ms	6400 KB	Output isn't correct
49	Correct	12 ms	6528 KB	Output is correct
50	Correct	511 ms	7068 KB	Output is correct
51	Incorrect	15 ms	6912 KB	Output isn't correct
52	Correct	16 ms	7040 KB	Output is correct
53	Correct	659 ms	7568 KB	Output is correct
54	Incorrect	16 ms	7424 KB	Output isn't correct
55	Correct	16 ms	7552 KB	Output is correct
56	Correct	822 ms	8184 KB	Output is correct
57	Incorrect	18 ms	7936 KB	Output isn't correct
58	Correct	18 ms	7936 KB	Output is correct
59	Execution timed out	1026 ms	8696 KB	Time limit exceeded
60	Incorrect	20 ms	8576 KB	Output isn't correct
61	Correct	20 ms	8448 KB	Output is correct
62	Execution timed out	1094 ms	9336 KB	Time limit exceeded
63	Correct	44 ms	8448 KB	Output is correct
64	Correct	48 ms	8696 KB	Output is correct
65	Correct	46 ms	8576 KB	Output is correct
66	Correct	45 ms	8556 KB	Output is correct
67	Correct	42 ms	8448 KB	Output is correct
68	Correct	37 ms	8696 KB	Output is correct
69	Correct	38 ms	8576 KB	Output is correct
70	Correct	37 ms	8576 KB	Output is correct
71	Correct	35 ms	8576 KB	Output is correct
72	Correct	32 ms	8576 KB	Output is correct
73	Correct	37 ms	8960 KB	Output is correct
74	Correct	54 ms	8960 KB	Output is correct
75	Correct	37 ms	8960 KB	Output is correct
76	Correct	36 ms	8960 KB	Output is correct
77	Correct	36 ms	8960 KB	Output is correct
78	Correct	38 ms	8832 KB	Output is correct
79	Correct	198 ms	8832 KB	Output is correct
80	Correct	50 ms	8952 KB	Output is correct
81	Correct	38 ms	8832 KB	Output is correct
82	Correct	66 ms	8832 KB	Output is correct
83	Correct	40 ms	8832 KB	Output is correct
84	Correct	69 ms	8832 KB	Output is correct
85	Correct	115 ms	8944 KB	Output is correct
86	Correct	143 ms	8832 KB	Output is correct
87	Correct	52 ms	8824 KB	Output is correct
88	Correct	88 ms	8704 KB	Output is correct
89	Correct	270 ms	8952 KB	Output is correct
90	Correct	42 ms	8704 KB	Output is correct
91	Correct	57 ms	8704 KB	Output is correct
92	Correct	44 ms	8704 KB	Output is correct