Submission #444904

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
444904	2021-07-15T20:05:07 Z	erke	Bitaro the Brave (JOI19_ho_t1)	C++11	100 / 100	373 ms	159232 KB

joi2019_ho_t1

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

#define int long long

const int N = 3005;

char a[N][N];
int cntO[N][N], cntI[N][N];

signed main() {
  // freopen("in" , "r", stdin );
  cin.tie(0)->sync_with_stdio(0);
  int n, m;
  cin >> n >> m;
  for (int i = 1; i <= n; i++)
  for (int j = 1; j <= m; j++) {
    cin >> a[i][j];
    if (a[i][j] == 'O') cntO[i][j]++;
    if (a[i][j] == 'I') cntI[i][j]++;
    cntO[i][j] += cntO[i][j - 1];
    cntI[i][j] += cntI[i - 1][j];
  }
  int ans = 0;
  for (int i = 1; i <= n; i++)
  for (int j = 1; j <= m; j++) {
    if (a[i][j] == 'J') {
      ans += (cntO[i][m] - cntO[i][j]) * (cntI[n][j] - cntI[i][j]);
    }
  }
  cout << ans << '\n';
}

Subtask #1

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	1 ms	312 KB	Output is correct
3	Correct	0 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	1484 KB	Output is correct
6	Correct	1 ms	1476 KB	Output is correct
7	Correct	1 ms	1356 KB	Output is correct
8	Correct	2 ms	1612 KB	Output is correct
9	Correct	1 ms	1484 KB	Output is correct
10	Correct	1 ms	1484 KB	Output is correct
11	Correct	2 ms	1604 KB	Output is correct
12	Correct	1 ms	1484 KB	Output is correct
13	Correct	1 ms	1356 KB	Output is correct

Subtask #2

30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	1 ms	312 KB	Output is correct
3	Correct	0 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	1484 KB	Output is correct
6	Correct	1 ms	1476 KB	Output is correct
7	Correct	1 ms	1356 KB	Output is correct
8	Correct	2 ms	1612 KB	Output is correct
9	Correct	1 ms	1484 KB	Output is correct
10	Correct	1 ms	1484 KB	Output is correct
11	Correct	2 ms	1604 KB	Output is correct
12	Correct	1 ms	1484 KB	Output is correct
13	Correct	1 ms	1356 KB	Output is correct
14	Correct	12 ms	8952 KB	Output is correct
15	Correct	3 ms	4940 KB	Output is correct
16	Correct	6 ms	5324 KB	Output is correct
17	Correct	1 ms	460 KB	Output is correct
18	Correct	14 ms	9908 KB	Output is correct
19	Correct	12 ms	9728 KB	Output is correct
20	Correct	11 ms	9780 KB	Output is correct
21	Correct	14 ms	9932 KB	Output is correct
22	Correct	12 ms	9804 KB	Output is correct
23	Correct	11 ms	9676 KB	Output is correct
24	Correct	14 ms	9932 KB	Output is correct
25	Correct	11 ms	9752 KB	Output is correct
26	Correct	11 ms	9676 KB	Output is correct

Subtask #3

50.0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	332 KB	Output is correct
2	Correct	1 ms	312 KB	Output is correct
3	Correct	0 ms	332 KB	Output is correct
4	Correct	1 ms	332 KB	Output is correct
5	Correct	1 ms	1484 KB	Output is correct
6	Correct	1 ms	1476 KB	Output is correct
7	Correct	1 ms	1356 KB	Output is correct
8	Correct	2 ms	1612 KB	Output is correct
9	Correct	1 ms	1484 KB	Output is correct
10	Correct	1 ms	1484 KB	Output is correct
11	Correct	2 ms	1604 KB	Output is correct
12	Correct	1 ms	1484 KB	Output is correct
13	Correct	1 ms	1356 KB	Output is correct
14	Correct	12 ms	8952 KB	Output is correct
15	Correct	3 ms	4940 KB	Output is correct
16	Correct	6 ms	5324 KB	Output is correct
17	Correct	1 ms	460 KB	Output is correct
18	Correct	14 ms	9908 KB	Output is correct
19	Correct	12 ms	9728 KB	Output is correct
20	Correct	11 ms	9780 KB	Output is correct
21	Correct	14 ms	9932 KB	Output is correct
22	Correct	12 ms	9804 KB	Output is correct
23	Correct	11 ms	9676 KB	Output is correct
24	Correct	14 ms	9932 KB	Output is correct
25	Correct	11 ms	9752 KB	Output is correct
26	Correct	11 ms	9676 KB	Output is correct
27	Correct	359 ms	158556 KB	Output is correct
28	Correct	17 ms	26316 KB	Output is correct
29	Correct	21 ms	13872 KB	Output is correct
30	Correct	2 ms	716 KB	Output is correct
31	Correct	270 ms	131284 KB	Output is correct
32	Correct	291 ms	158884 KB	Output is correct
33	Correct	248 ms	158420 KB	Output is correct
34	Correct	314 ms	152352 KB	Output is correct
35	Correct	301 ms	159004 KB	Output is correct
36	Correct	246 ms	158532 KB	Output is correct
37	Correct	373 ms	159232 KB	Output is correct
38	Correct	210 ms	130888 KB	Output is correct
39	Correct	185 ms	130792 KB	Output is correct