답안 #557698

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
557698	2022-05-05T20:06:24 Z	ljuba	Bitaro the Brave (JOI19_ho_t1)	C++17	100 / 100	236 ms	89640 KB

joi2019_ho_t1

#include <bits/stdc++.h>

using namespace std;

using ll = long long;

int main() {
    ios::sync_with_stdio(0);
    cin.tie(0);

    int n, m;
    cin >> n >> m;
    vector<string> mat(n);
    for(auto &z : mat) cin >> z;

    vector<vector<int>> ig(n, vector<int>(m, 0));
    vector<vector<int>> o(n, vector<int>(m, 0));

    for(int i = n-1; i >= 0; --i) {
        for(int j = 0; j < m; ++j) {
            ig[i][j] = (mat[i][j] == 'I');

            if(i + 1 < n) {
                ig[i][j] += ig[i+1][j];
            }
        }
    }

    for(int j = m-1; j >= 0; --j) {
        for(int i = 0; i < n; ++i) {
            o[i][j] = (mat[i][j] == 'O');

            if(j + 1 < m) {
                o[i][j] += o[i][j+1];
            }
        }
    }

    ll ans = 0;

    for(int i = 0; i + 1 < n; ++i) {
        for(int j = 0; j + 1 < m; ++j) {
            if(mat[i][j] != 'J') continue;
            ans += ig[i+1][j] * o[i][j+1];
        }
    }

    cout << ans << '\n';
}

Subtask #1

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	328 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	320 KB	Output is correct
7	Correct	1 ms	328 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	324 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct

Subtask #2

30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	328 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	320 KB	Output is correct
7	Correct	1 ms	328 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	324 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	3 ms	2248 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	2 ms	1620 KB	Output is correct
17	Correct	1 ms	428 KB	Output is correct
18	Correct	5 ms	2772 KB	Output is correct
19	Correct	3 ms	2640 KB	Output is correct
20	Correct	3 ms	2772 KB	Output is correct
21	Correct	4 ms	2764 KB	Output is correct
22	Correct	4 ms	2740 KB	Output is correct
23	Correct	3 ms	2772 KB	Output is correct
24	Correct	4 ms	2772 KB	Output is correct
25	Correct	3 ms	2644 KB	Output is correct
26	Correct	3 ms	2772 KB	Output is correct

Subtask #3

50.0 / 50.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	212 KB	Output is correct
2	Correct	0 ms	212 KB	Output is correct
3	Correct	0 ms	328 KB	Output is correct
4	Correct	0 ms	212 KB	Output is correct
5	Correct	1 ms	340 KB	Output is correct
6	Correct	1 ms	320 KB	Output is correct
7	Correct	1 ms	328 KB	Output is correct
8	Correct	1 ms	340 KB	Output is correct
9	Correct	1 ms	324 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	1 ms	340 KB	Output is correct
12	Correct	1 ms	340 KB	Output is correct
13	Correct	1 ms	340 KB	Output is correct
14	Correct	3 ms	2248 KB	Output is correct
15	Correct	1 ms	340 KB	Output is correct
16	Correct	2 ms	1620 KB	Output is correct
17	Correct	1 ms	428 KB	Output is correct
18	Correct	5 ms	2772 KB	Output is correct
19	Correct	3 ms	2640 KB	Output is correct
20	Correct	3 ms	2772 KB	Output is correct
21	Correct	4 ms	2764 KB	Output is correct
22	Correct	4 ms	2740 KB	Output is correct
23	Correct	3 ms	2772 KB	Output is correct
24	Correct	4 ms	2772 KB	Output is correct
25	Correct	3 ms	2644 KB	Output is correct
26	Correct	3 ms	2772 KB	Output is correct
27	Correct	213 ms	84484 KB	Output is correct
28	Correct	1 ms	724 KB	Output is correct
29	Correct	8 ms	6740 KB	Output is correct
30	Correct	1 ms	468 KB	Output is correct
31	Correct	151 ms	62340 KB	Output is correct
32	Correct	195 ms	89100 KB	Output is correct
33	Correct	194 ms	89420 KB	Output is correct
34	Correct	173 ms	72208 KB	Output is correct
35	Correct	202 ms	88984 KB	Output is correct
36	Correct	198 ms	89312 KB	Output is correct
37	Correct	236 ms	89640 KB	Output is correct
38	Correct	131 ms	61784 KB	Output is correct
39	Correct	126 ms	61948 KB	Output is correct