Submission #220151

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
220151	2020-04-07T07:09:20 Z	anatolik	Bitaro the Brave (JOI19_ho_t1)	C++14	100 / 100	312 ms	89464 KB

joi2019_ho_t1

#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
#define ll long long

using namespace std;

const int MAXN = 3005;

int numb1[MAXN][MAXN];
int numb2[MAXN][MAXN];

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	int n, m;
	cin >> n >> m;
	vector<string> mat(n);
	for (int i = 0; i < n; i++) {
		cin >> mat[i];
	}
	for (int i = 0; i < n; i++) {
		int now = 0;
		for (int j = m - 1; j >= 0; j--) {
			if (mat[i][j] == 'O')
				now++;
			numb1[i][j] = now;
		}
	}
	for (int j = 0; j < m; j++) {
		int now = 0;
		for (int i = n - 1; i >= 0; i--) {
			if (mat[i][j] == 'I')
				now++;
			numb2[i][j] = now;
		}
	}
	ll ans = 0;
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < m; j++) {
			if (mat[i][j] == 'J')
				ans += numb1[i][j] * numb2[i][j];
		}
		//cerr << endl;
	}
	cout << ans << endl;
}

Subtask #1

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	8 ms	384 KB	Output is correct
5	Correct	5 ms	1408 KB	Output is correct
6	Correct	5 ms	1152 KB	Output is correct
7	Correct	5 ms	1152 KB	Output is correct
8	Correct	5 ms	1280 KB	Output is correct
9	Correct	5 ms	1280 KB	Output is correct
10	Correct	5 ms	1152 KB	Output is correct
11	Correct	5 ms	1280 KB	Output is correct
12	Correct	5 ms	1280 KB	Output is correct
13	Correct	5 ms	1152 KB	Output is correct

Subtask #2

30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	8 ms	384 KB	Output is correct
5	Correct	5 ms	1408 KB	Output is correct
6	Correct	5 ms	1152 KB	Output is correct
7	Correct	5 ms	1152 KB	Output is correct
8	Correct	5 ms	1280 KB	Output is correct
9	Correct	5 ms	1280 KB	Output is correct
10	Correct	5 ms	1152 KB	Output is correct
11	Correct	5 ms	1280 KB	Output is correct
12	Correct	5 ms	1280 KB	Output is correct
13	Correct	5 ms	1152 KB	Output is correct
14	Correct	9 ms	6272 KB	Output is correct
15	Correct	7 ms	3840 KB	Output is correct
16	Correct	10 ms	3712 KB	Output is correct
17	Correct	5 ms	512 KB	Output is correct
18	Correct	10 ms	6784 KB	Output is correct
19	Correct	9 ms	6784 KB	Output is correct
20	Correct	9 ms	6656 KB	Output is correct
21	Correct	10 ms	6912 KB	Output is correct
22	Correct	9 ms	6784 KB	Output is correct
23	Correct	9 ms	6656 KB	Output is correct
24	Correct	10 ms	6784 KB	Output is correct
25	Correct	9 ms	6784 KB	Output is correct
26	Correct	9 ms	6656 KB	Output is correct

Subtask #3

50.0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	384 KB	Output is correct
2	Correct	4 ms	384 KB	Output is correct
3	Correct	5 ms	384 KB	Output is correct
4	Correct	8 ms	384 KB	Output is correct
5	Correct	5 ms	1408 KB	Output is correct
6	Correct	5 ms	1152 KB	Output is correct
7	Correct	5 ms	1152 KB	Output is correct
8	Correct	5 ms	1280 KB	Output is correct
9	Correct	5 ms	1280 KB	Output is correct
10	Correct	5 ms	1152 KB	Output is correct
11	Correct	5 ms	1280 KB	Output is correct
12	Correct	5 ms	1280 KB	Output is correct
13	Correct	5 ms	1152 KB	Output is correct
14	Correct	9 ms	6272 KB	Output is correct
15	Correct	7 ms	3840 KB	Output is correct
16	Correct	10 ms	3712 KB	Output is correct
17	Correct	5 ms	512 KB	Output is correct
18	Correct	10 ms	6784 KB	Output is correct
19	Correct	9 ms	6784 KB	Output is correct
20	Correct	9 ms	6656 KB	Output is correct
21	Correct	10 ms	6912 KB	Output is correct
22	Correct	9 ms	6784 KB	Output is correct
23	Correct	9 ms	6656 KB	Output is correct
24	Correct	10 ms	6784 KB	Output is correct
25	Correct	9 ms	6784 KB	Output is correct
26	Correct	9 ms	6656 KB	Output is correct
27	Correct	297 ms	88444 KB	Output is correct
28	Correct	13 ms	19328 KB	Output is correct
29	Correct	11 ms	7808 KB	Output is correct
30	Correct	5 ms	640 KB	Output is correct
31	Correct	216 ms	72056 KB	Output is correct
32	Correct	276 ms	89336 KB	Output is correct
33	Correct	285 ms	89244 KB	Output is correct
34	Correct	242 ms	83448 KB	Output is correct
35	Correct	279 ms	89336 KB	Output is correct
36	Correct	283 ms	89300 KB	Output is correct
37	Correct	312 ms	89464 KB	Output is correct
38	Correct	188 ms	71800 KB	Output is correct
39	Correct	189 ms	71800 KB	Output is correct