답안 #1073899

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1073899	2024-08-25T02:37:32 Z	gavangno01	Mecho (IOI09_mecho)	C++17	73 / 100	148 ms	8796 KB

mecho

#include<bits/stdc++.h>
#define pii pair<int, int>
#define fi first
#define se second
using namespace std;

const int dx[] = {1, 0, 0, -1};
const int dy[] = {0, 1, -1, 0};
const int MAXN = 8e2 + 10;
const int inf = 1e9 + 7;
int n, s;
int xe, ye;
int grid[MAXN][MAXN];
int loangbee[MAXN][MAXN];
int loangpl[MAXN][MAXN];

bool exceed(int x, int y) {
    return (x > n || x < 1 || y > n || y < 1);
}
void bfsbee() {
    queue<pair<int, int>> q;
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= n; j++) {
            if (grid[i][j] == 4) {
                q.push({i, j});
                loangbee[i][j] = 0;
            }
        }
    }
    while (!q.empty()) {
        pii temp = q.front();
        q.pop();
        int x = temp.fi;
        int y = temp.se;
        for (int i = 0; i < 4; i++) {
            int u = x + dx[i];
            int v = y + dy[i];
            if (!exceed(u, v)) {
                if (loangbee[u][v] == inf && grid[u][v] == 1) {
                    loangbee[u][v] = loangbee[x][y] + 1;
                    q.push({u, v});
                }
            }
        }
    }
}
int bfspl(int original_value) {
    queue<pair<int, int>> q;
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= n; j++) {
            if (grid[i][j] == 2) {
                q.push({i, j});
                loangpl[i][j] = 0;
            }
            else {
                loangpl[i][j] = inf;
            }
        }
    }
    while (!q.empty()) {
        pii temp = q.front();
        q.pop();
        int x = temp.fi;
        int y = temp.se;
        int time = loangpl[x][y] / s;
        //if (loangpl[x][y] % s != 0) time++;
        time += original_value;
        if (time >= loangbee[x][y]) {
            loangpl[x][y] = -1;
            continue;
        }
        for (int i = 0; i < 4; i++) {
            int u = x + dx[i];
            int v = y + dy[i];
            if (!exceed(u, v)) {
                if (loangpl[u][v] == inf && grid[u][v] == 1) {
                    q.push({u, v});
                    loangpl[u][v] = loangpl[x][y] + 1;
                }
            }
        }
    }
    if (loangpl[xe][ye] == -1 || loangpl[xe][ye] == inf) return 0;
    int timedi = loangpl[xe][ye] / s;
    return timedi < loangbee[xe][ye] - original_value;
}

int main() {
    cin >> n >> s;

    for (int i = 1; i <= n; i++) {
        string str;
        cin >> str;
        for (int j = 1; j <= n; j++) {
            char c = str[j-1];
            loangpl[i][j] = inf;
            loangbee[i][j] = inf;
            if (c == 'T') {
                grid[i][j] = 0;
            }
            if (c == 'G') grid[i][j] = 1;
            if (c == 'M') grid[i][j] = 2;
            if (c == 'D') {
                grid[i][j] = 1;
                xe = i;
                ye = j;
            }
            if (c == 'H') grid[i][j] = 4;
        }
    }
    bfsbee();
//    for (int i = 1; i <= n; i++) {
//        for (int j = 1; j <= n; j++) {
//            cout << loangbee[i][j] << " ";
//        }
//        cout << endl;
//    }
//    cout << "map nguoi" << endl;
//    for (int i = 1; i <= n; i++) {
//        for (int j = 1; j <= n; j++) {
//            cout << loangpl[i][j] << " ";
//        }
//        cout << endl;
//
    int l = 0, r = n * n;
    while (l <= r) {
        int mid = (l + r) / 2;
        if (bfspl(mid) == 1) {
            l = mid + 1;
        }
        else r = mid - 1;
    }
    cout << l - 1;
    return 0;
}

Subtask #1

73.0 / 100.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	348 KB	Output is correct
2	Incorrect	0 ms	348 KB	Output isn't correct
3	Correct	0 ms	348 KB	Output is correct
4	Incorrect	0 ms	348 KB	Output isn't correct
5	Correct	0 ms	348 KB	Output is correct
6	Incorrect	0 ms	348 KB	Output isn't correct
7	Incorrect	65 ms	8660 KB	Output isn't correct
8	Correct	1 ms	348 KB	Output is correct
9	Correct	1 ms	348 KB	Output is correct
10	Correct	1 ms	348 KB	Output is correct
11	Correct	0 ms	604 KB	Output is correct
12	Incorrect	1 ms	860 KB	Output isn't correct
13	Incorrect	1 ms	860 KB	Output isn't correct
14	Correct	1 ms	860 KB	Output is correct
15	Correct	0 ms	604 KB	Output is correct
16	Correct	0 ms	604 KB	Output is correct
17	Correct	0 ms	604 KB	Output is correct
18	Correct	0 ms	604 KB	Output is correct
19	Correct	0 ms	604 KB	Output is correct
20	Correct	0 ms	604 KB	Output is correct
21	Correct	1 ms	700 KB	Output is correct
22	Correct	1 ms	604 KB	Output is correct
23	Correct	1 ms	860 KB	Output is correct
24	Correct	1 ms	856 KB	Output is correct
25	Correct	1 ms	860 KB	Output is correct
26	Correct	1 ms	860 KB	Output is correct
27	Correct	1 ms	860 KB	Output is correct
28	Correct	1 ms	860 KB	Output is correct
29	Correct	1 ms	1116 KB	Output is correct
30	Correct	1 ms	1116 KB	Output is correct
31	Correct	1 ms	1116 KB	Output is correct
32	Correct	1 ms	1116 KB	Output is correct
33	Correct	8 ms	3904 KB	Output is correct
34	Correct	7 ms	3676 KB	Output is correct
35	Correct	16 ms	3756 KB	Output is correct
36	Correct	10 ms	4444 KB	Output is correct
37	Correct	8 ms	4296 KB	Output is correct
38	Correct	23 ms	4188 KB	Output is correct
39	Correct	10 ms	4772 KB	Output is correct
40	Correct	10 ms	4700 KB	Output is correct
41	Correct	28 ms	4936 KB	Output is correct
42	Correct	11 ms	5212 KB	Output is correct
43	Correct	12 ms	5460 KB	Output is correct
44	Correct	36 ms	5212 KB	Output is correct
45	Correct	14 ms	5980 KB	Output is correct
46	Correct	17 ms	5980 KB	Output is correct
47	Correct	44 ms	5980 KB	Output is correct
48	Correct	22 ms	6492 KB	Output is correct
49	Correct	18 ms	6492 KB	Output is correct
50	Correct	62 ms	6396 KB	Output is correct
51	Correct	19 ms	7004 KB	Output is correct
52	Correct	19 ms	7000 KB	Output is correct
53	Correct	63 ms	7000 KB	Output is correct
54	Correct	21 ms	7516 KB	Output is correct
55	Correct	22 ms	7384 KB	Output is correct
56	Correct	68 ms	7516 KB	Output is correct
57	Correct	27 ms	8080 KB	Output is correct
58	Correct	28 ms	8028 KB	Output is correct
59	Correct	78 ms	8084 KB	Output is correct
60	Correct	28 ms	8536 KB	Output is correct
61	Correct	28 ms	8540 KB	Output is correct
62	Correct	91 ms	8552 KB	Output is correct
63	Correct	83 ms	8536 KB	Output is correct
64	Correct	148 ms	8540 KB	Output is correct
65	Correct	120 ms	8540 KB	Output is correct
66	Correct	97 ms	8540 KB	Output is correct
67	Correct	92 ms	8536 KB	Output is correct
68	Correct	51 ms	8420 KB	Output is correct
69	Correct	48 ms	8540 KB	Output is correct
70	Correct	44 ms	8788 KB	Output is correct
71	Correct	43 ms	8540 KB	Output is correct
72	Incorrect	39 ms	8540 KB	Output isn't correct
73	Incorrect	59 ms	8796 KB	Output isn't correct
74	Correct	48 ms	8792 KB	Output is correct
75	Correct	56 ms	8796 KB	Output is correct
76	Correct	50 ms	8796 KB	Output is correct
77	Correct	53 ms	8792 KB	Output is correct
78	Correct	58 ms	8788 KB	Output is correct
79	Correct	47 ms	8792 KB	Output is correct
80	Correct	51 ms	8796 KB	Output is correct
81	Correct	56 ms	8760 KB	Output is correct
82	Correct	57 ms	8572 KB	Output is correct
83	Correct	66 ms	8540 KB	Output is correct
84	Correct	55 ms	8540 KB	Output is correct
85	Correct	60 ms	8760 KB	Output is correct
86	Correct	61 ms	8756 KB	Output is correct
87	Correct	62 ms	8540 KB	Output is correct
88	Correct	61 ms	8672 KB	Output is correct
89	Correct	64 ms	8540 KB	Output is correct
90	Correct	65 ms	8792 KB	Output is correct
91	Correct	62 ms	8728 KB	Output is correct
92	Correct	66 ms	8712 KB	Output is correct