답안 #851995

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
851995	2023-09-21T04:37:40 Z	stdfloat	Bitaro the Brave (JOI19_ho_t1)	C++17	100 / 100	97 ms	89680 KB

joi2019_ho_t1

#include <bits/stdc++.h>
using namespace std;

using ll = long long;

int32_t main() {
	ios::sync_with_stdio(false); cin.tie(nullptr);

	int n, m;
	cin >> n >> m;

	vector<string> a(n);
	for (int i = 0; i < n; i++) {
		cin >> a[i];
	}

	vector<vector<int>> cntI(n, vector<int>(m)), cntO(n, vector<int>(m));
	for (int i = n - 1; i >= 0; i--) {
		for (int j = m - 1; j >= 0; j--) {
			cntI[i][j] += (i + 1 < n ? cntI[i + 1][j] : 0) + (a[i][j] == 'I');
			cntO[i][j] += (j + 1 < m ? cntO[i][j + 1] : 0) + (a[i][j] == 'O');
		}
	}

	ll ans = 0;
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < m - 1; j++) {
			if (a[i][j] == 'J') ans += 1LL * cntO[i][j] * cntI[i][j];
		}
	}

	cout << ans;
}

Subtask #1

20.0 / 20.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	344 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	1 ms	600 KB	Output is correct
8	Correct	1 ms	344 KB	Output is correct
9	Correct	1 ms	344 KB	Output is correct
10	Correct	1 ms	344 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	1 ms	344 KB	Output is correct
13	Correct	0 ms	344 KB	Output is correct

Subtask #2

30.0 / 30.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	344 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	1 ms	600 KB	Output is correct
8	Correct	1 ms	344 KB	Output is correct
9	Correct	1 ms	344 KB	Output is correct
10	Correct	1 ms	344 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	1 ms	344 KB	Output is correct
13	Correct	0 ms	344 KB	Output is correct
14	Correct	3 ms	2396 KB	Output is correct
15	Correct	1 ms	344 KB	Output is correct
16	Correct	2 ms	1880 KB	Output is correct
17	Correct	1 ms	344 KB	Output is correct
18	Correct	3 ms	2904 KB	Output is correct
19	Correct	2 ms	2652 KB	Output is correct
20	Correct	3 ms	2904 KB	Output is correct
21	Correct	4 ms	3024 KB	Output is correct
22	Correct	2 ms	2648 KB	Output is correct
23	Correct	2 ms	2904 KB	Output is correct
24	Correct	3 ms	2904 KB	Output is correct
25	Correct	3 ms	2648 KB	Output is correct
26	Correct	2 ms	2908 KB	Output is correct

Subtask #3

50.0 / 50.0

#	결과	실행 시간	메모리	Grader output
1	Correct	0 ms	344 KB	Output is correct
2	Correct	1 ms	348 KB	Output is correct
3	Correct	0 ms	344 KB	Output is correct
4	Correct	0 ms	348 KB	Output is correct
5	Correct	1 ms	344 KB	Output is correct
6	Correct	1 ms	348 KB	Output is correct
7	Correct	1 ms	600 KB	Output is correct
8	Correct	1 ms	344 KB	Output is correct
9	Correct	1 ms	344 KB	Output is correct
10	Correct	1 ms	344 KB	Output is correct
11	Correct	0 ms	348 KB	Output is correct
12	Correct	1 ms	344 KB	Output is correct
13	Correct	0 ms	344 KB	Output is correct
14	Correct	3 ms	2396 KB	Output is correct
15	Correct	1 ms	344 KB	Output is correct
16	Correct	2 ms	1880 KB	Output is correct
17	Correct	1 ms	344 KB	Output is correct
18	Correct	3 ms	2904 KB	Output is correct
19	Correct	2 ms	2652 KB	Output is correct
20	Correct	3 ms	2904 KB	Output is correct
21	Correct	4 ms	3024 KB	Output is correct
22	Correct	2 ms	2648 KB	Output is correct
23	Correct	2 ms	2904 KB	Output is correct
24	Correct	3 ms	2904 KB	Output is correct
25	Correct	3 ms	2648 KB	Output is correct
26	Correct	2 ms	2908 KB	Output is correct
27	Correct	86 ms	84508 KB	Output is correct
28	Correct	1 ms	1112 KB	Output is correct
29	Correct	5 ms	6744 KB	Output is correct
30	Correct	1 ms	600 KB	Output is correct
31	Correct	63 ms	62292 KB	Output is correct
32	Correct	69 ms	88900 KB	Output is correct
33	Correct	70 ms	89424 KB	Output is correct
34	Correct	74 ms	72324 KB	Output is correct
35	Correct	73 ms	89104 KB	Output is correct
36	Correct	67 ms	89424 KB	Output is correct
37	Correct	97 ms	89680 KB	Output is correct
38	Correct	53 ms	61816 KB	Output is correct
39	Correct	48 ms	62132 KB	Output is correct