답안 #312965

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
312965 2020-10-14T20:28:28 Z fergonzgut21 Mecho (IOI09_mecho) C++14
94 / 100
1000 ms 9164 KB
#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 (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()
{
    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;
}
# 결과 실행 시간 메모리 Grader output
1 Correct 1 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 0 ms 384 KB Output is correct
5 Correct 1 ms 384 KB Output is correct
6 Correct 0 ms 384 KB Output is correct
7 Correct 87 ms 8692 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 384 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 Correct 1 ms 512 KB Output is correct
16 Correct 1 ms 512 KB Output is correct
17 Correct 1 ms 512 KB Output is correct
18 Correct 1 ms 512 KB Output is correct
19 Correct 1 ms 512 KB Output is correct
20 Correct 1 ms 512 KB Output is correct
21 Correct 1 ms 640 KB Output is correct
22 Correct 1 ms 640 KB Output is correct
23 Correct 1 ms 768 KB Output is correct
24 Correct 1 ms 768 KB Output is correct
25 Correct 1 ms 896 KB Output is correct
26 Correct 1 ms 896 KB Output is correct
27 Correct 1 ms 896 KB Output is correct
28 Correct 1 ms 896 KB Output is correct
29 Correct 1 ms 896 KB Output is correct
30 Correct 1 ms 896 KB Output is correct
31 Correct 2 ms 1024 KB Output is correct
32 Correct 1 ms 1024 KB Output is correct
33 Correct 14 ms 3952 KB Output is correct
34 Correct 13 ms 3840 KB Output is correct
35 Correct 108 ms 4112 KB Output is correct
36 Correct 17 ms 4480 KB Output is correct
37 Correct 17 ms 4352 KB Output is correct
38 Correct 159 ms 4556 KB Output is correct
39 Correct 22 ms 4864 KB Output is correct
40 Correct 21 ms 4856 KB Output is correct
41 Correct 225 ms 5276 KB Output is correct
42 Correct 27 ms 5496 KB Output is correct
43 Correct 25 ms 5368 KB Output is correct
44 Correct 307 ms 5628 KB Output is correct
45 Correct 32 ms 5888 KB Output is correct
46 Correct 31 ms 5880 KB Output is correct
47 Correct 409 ms 6264 KB Output is correct
48 Correct 37 ms 6392 KB Output is correct
49 Correct 36 ms 6392 KB Output is correct
50 Correct 536 ms 6844 KB Output is correct
51 Correct 44 ms 6912 KB Output is correct
52 Correct 42 ms 6904 KB Output is correct
53 Correct 679 ms 7544 KB Output is correct
54 Correct 50 ms 7416 KB Output is correct
55 Correct 49 ms 7416 KB Output is correct
56 Correct 855 ms 8180 KB Output is correct
57 Correct 57 ms 7928 KB Output is correct
58 Correct 55 ms 7928 KB Output is correct
59 Execution timed out 1083 ms 8804 KB Time limit exceeded
60 Correct 66 ms 8440 KB Output is correct
61 Correct 62 ms 8440 KB Output is correct
62 Execution timed out 1038 ms 9164 KB Time limit exceeded
63 Correct 86 ms 8444 KB Output is correct
64 Correct 89 ms 8536 KB Output is correct
65 Correct 87 ms 8500 KB Output is correct
66 Correct 86 ms 8440 KB Output is correct
67 Correct 81 ms 8440 KB Output is correct
68 Correct 79 ms 8568 KB Output is correct
69 Correct 81 ms 8696 KB Output is correct
70 Correct 80 ms 8568 KB Output is correct
71 Correct 77 ms 8568 KB Output is correct
72 Correct 76 ms 8516 KB Output is correct
73 Correct 77 ms 8952 KB Output is correct
74 Correct 96 ms 8824 KB Output is correct
75 Correct 78 ms 9056 KB Output is correct
76 Correct 80 ms 8824 KB Output is correct
77 Correct 79 ms 8824 KB Output is correct
78 Correct 80 ms 8828 KB Output is correct
79 Correct 236 ms 8952 KB Output is correct
80 Correct 90 ms 8824 KB Output is correct
81 Correct 80 ms 8824 KB Output is correct
82 Correct 108 ms 8824 KB Output is correct
83 Correct 84 ms 8824 KB Output is correct
84 Correct 112 ms 8824 KB Output is correct
85 Correct 155 ms 8952 KB Output is correct
86 Correct 182 ms 8944 KB Output is correct
87 Correct 92 ms 8824 KB Output is correct
88 Correct 132 ms 8696 KB Output is correct
89 Correct 312 ms 8824 KB Output is correct
90 Correct 84 ms 8696 KB Output is correct
91 Correct 99 ms 8700 KB Output is correct
92 Correct 85 ms 8696 KB Output is correct