Submission #209193

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
209193	2020-03-13T11:09:34 Z	mcdx9524	Bitaro the Brave (JOI19_ho_t1)	C++14	100 / 100	201 ms	13176 KB

joi2019_ho_t1

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

mt19937 rnd(chrono::high_resolution_clock::now().time_since_epoch().count());

const int N = 3e3 + 7;

char c[N][N];
ll res[N];

int main() {
  ios::sync_with_stdio(0);
  cin.tie(0);
  int n, m;
  cin >> n >> m;
  ll ans = 0;
  for (int i = 0; i < n; i++) {
    for (int j = 0; j < m; j++) {
      cin >> c[i][j];
    }
  }
  for (int i = 0; i < n; i++) {
    int cnt = 0;
    for (int j = m - 1; j >= 0; j--) {
      if (c[i][j] == 'O') {
        cnt++;
      }
      if (c[i][j] == 'J') {
        res[j] += cnt;
      }
      if (c[i][j] == 'I') {
        ans += res[j];
      }
    }
  }
  cout << ans << endl;
  return 0;
}

Subtask #1

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	376 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	5 ms	632 KB	Output is correct
6	Correct	5 ms	632 KB	Output is correct
7	Correct	5 ms	632 KB	Output is correct
8	Correct	5 ms	632 KB	Output is correct
9	Correct	5 ms	632 KB	Output is correct
10	Correct	5 ms	760 KB	Output is correct
11	Correct	5 ms	632 KB	Output is correct
12	Correct	5 ms	632 KB	Output is correct
13	Correct	5 ms	632 KB	Output is correct

Subtask #2

30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	376 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	5 ms	632 KB	Output is correct
6	Correct	5 ms	632 KB	Output is correct
7	Correct	5 ms	632 KB	Output is correct
8	Correct	5 ms	632 KB	Output is correct
9	Correct	5 ms	632 KB	Output is correct
10	Correct	5 ms	760 KB	Output is correct
11	Correct	5 ms	632 KB	Output is correct
12	Correct	5 ms	632 KB	Output is correct
13	Correct	5 ms	632 KB	Output is correct
14	Correct	9 ms	2040 KB	Output is correct
15	Correct	5 ms	1528 KB	Output is correct
16	Correct	8 ms	1272 KB	Output is correct
17	Correct	5 ms	376 KB	Output is correct
18	Correct	11 ms	2040 KB	Output is correct
19	Correct	9 ms	2040 KB	Output is correct
20	Correct	9 ms	2040 KB	Output is correct
21	Correct	12 ms	2180 KB	Output is correct
22	Correct	9 ms	2040 KB	Output is correct
23	Correct	9 ms	2040 KB	Output is correct
24	Correct	11 ms	2040 KB	Output is correct
25	Correct	9 ms	2168 KB	Output is correct
26	Correct	9 ms	2040 KB	Output is correct

Subtask #3

50.0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	5 ms	376 KB	Output is correct
2	Correct	5 ms	376 KB	Output is correct
3	Correct	5 ms	376 KB	Output is correct
4	Correct	5 ms	376 KB	Output is correct
5	Correct	5 ms	632 KB	Output is correct
6	Correct	5 ms	632 KB	Output is correct
7	Correct	5 ms	632 KB	Output is correct
8	Correct	5 ms	632 KB	Output is correct
9	Correct	5 ms	632 KB	Output is correct
10	Correct	5 ms	760 KB	Output is correct
11	Correct	5 ms	632 KB	Output is correct
12	Correct	5 ms	632 KB	Output is correct
13	Correct	5 ms	632 KB	Output is correct
14	Correct	9 ms	2040 KB	Output is correct
15	Correct	5 ms	1528 KB	Output is correct
16	Correct	8 ms	1272 KB	Output is correct
17	Correct	5 ms	376 KB	Output is correct
18	Correct	11 ms	2040 KB	Output is correct
19	Correct	9 ms	2040 KB	Output is correct
20	Correct	9 ms	2040 KB	Output is correct
21	Correct	12 ms	2180 KB	Output is correct
22	Correct	9 ms	2040 KB	Output is correct
23	Correct	9 ms	2040 KB	Output is correct
24	Correct	11 ms	2040 KB	Output is correct
25	Correct	9 ms	2168 KB	Output is correct
26	Correct	9 ms	2040 KB	Output is correct
27	Correct	186 ms	13176 KB	Output is correct
28	Correct	9 ms	7160 KB	Output is correct
29	Correct	15 ms	1784 KB	Output is correct
30	Correct	5 ms	376 KB	Output is correct
31	Correct	138 ms	11640 KB	Output is correct
32	Correct	148 ms	13048 KB	Output is correct
33	Correct	136 ms	13048 KB	Output is correct
34	Correct	161 ms	12664 KB	Output is correct
35	Correct	139 ms	13048 KB	Output is correct
36	Correct	137 ms	13048 KB	Output is correct
37	Correct	201 ms	13164 KB	Output is correct
38	Correct	107 ms	11640 KB	Output is correct
39	Correct	94 ms	11584 KB	Output is correct