Submission #99549

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
99549	2019-03-05T04:06:10 Z	Dat160601	Bitaro the Brave (JOI19_ho_t1)	C++17	100 / 100	284 ms	87544 KB

joi2019_ho_t1

#include <bits/stdc++.h>
using namespace std;
#define mp make_pair
#define pb push_back
#define fi first
#define se second

const int N = 3007;

int n, m, row[N][N], col[N][N];
long long ans = 0;
string s[N];

int main(){
	ios_base::sync_with_stdio(0); cin.tie(0);
	cin >> n >> m;
	for(int i = 1; i <= n; i++){
		cin >> s[i];
		for(int j = 1; j <= m; j++){
			row[i][j] = row[i][j - 1];
			if(s[i][j - 1] == 'O') row[i][j]++;
			else if(s[i][j - 1] == 'I') col[j][i]++;
		}
	}
	for(int j = 1; j <= m; j++){
		for(int i = 1; i <= n; i++){
			col[j][i] += col[j][i - 1];
		}
	}
	for(int i = 1; i <= n; i++){
		for(int j = 1; j <= m; j++){
			if(s[i][j - 1] != 'J') continue;
			ans += 1LL * (row[i][m] - row[i][j]) * (col[j][n] - col[j][i]);
		}
	}
	cout << ans;
}

Subtask #1

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	512 KB	Output is correct
2	Correct	3 ms	512 KB	Output is correct
3	Correct	2 ms	512 KB	Output is correct
4	Correct	3 ms	512 KB	Output is correct
5	Correct	3 ms	1280 KB	Output is correct
6	Correct	5 ms	1280 KB	Output is correct
7	Correct	3 ms	1280 KB	Output is correct
8	Correct	4 ms	1408 KB	Output is correct
9	Correct	4 ms	1280 KB	Output is correct
10	Correct	3 ms	1280 KB	Output is correct
11	Correct	3 ms	1380 KB	Output is correct
12	Correct	3 ms	1280 KB	Output is correct
13	Correct	3 ms	1280 KB	Output is correct

Subtask #2

30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	512 KB	Output is correct
2	Correct	3 ms	512 KB	Output is correct
3	Correct	2 ms	512 KB	Output is correct
4	Correct	3 ms	512 KB	Output is correct
5	Correct	3 ms	1280 KB	Output is correct
6	Correct	5 ms	1280 KB	Output is correct
7	Correct	3 ms	1280 KB	Output is correct
8	Correct	4 ms	1408 KB	Output is correct
9	Correct	4 ms	1280 KB	Output is correct
10	Correct	3 ms	1280 KB	Output is correct
11	Correct	3 ms	1380 KB	Output is correct
12	Correct	3 ms	1280 KB	Output is correct
13	Correct	3 ms	1280 KB	Output is correct
14	Correct	14 ms	5888 KB	Output is correct
15	Correct	5 ms	2304 KB	Output is correct
16	Correct	9 ms	4736 KB	Output is correct
17	Correct	4 ms	1664 KB	Output is correct
18	Correct	16 ms	6912 KB	Output is correct
19	Correct	13 ms	6756 KB	Output is correct
20	Correct	12 ms	6784 KB	Output is correct
21	Correct	12 ms	6912 KB	Output is correct
22	Correct	12 ms	6784 KB	Output is correct
23	Correct	11 ms	6784 KB	Output is correct
24	Correct	13 ms	6912 KB	Output is correct
25	Correct	11 ms	6784 KB	Output is correct
26	Correct	10 ms	6784 KB	Output is correct

Subtask #3

50.0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	512 KB	Output is correct
2	Correct	3 ms	512 KB	Output is correct
3	Correct	2 ms	512 KB	Output is correct
4	Correct	3 ms	512 KB	Output is correct
5	Correct	3 ms	1280 KB	Output is correct
6	Correct	5 ms	1280 KB	Output is correct
7	Correct	3 ms	1280 KB	Output is correct
8	Correct	4 ms	1408 KB	Output is correct
9	Correct	4 ms	1280 KB	Output is correct
10	Correct	3 ms	1280 KB	Output is correct
11	Correct	3 ms	1380 KB	Output is correct
12	Correct	3 ms	1280 KB	Output is correct
13	Correct	3 ms	1280 KB	Output is correct
14	Correct	14 ms	5888 KB	Output is correct
15	Correct	5 ms	2304 KB	Output is correct
16	Correct	9 ms	4736 KB	Output is correct
17	Correct	4 ms	1664 KB	Output is correct
18	Correct	16 ms	6912 KB	Output is correct
19	Correct	13 ms	6756 KB	Output is correct
20	Correct	12 ms	6784 KB	Output is correct
21	Correct	12 ms	6912 KB	Output is correct
22	Correct	12 ms	6784 KB	Output is correct
23	Correct	11 ms	6784 KB	Output is correct
24	Correct	13 ms	6912 KB	Output is correct
25	Correct	11 ms	6784 KB	Output is correct
26	Correct	10 ms	6784 KB	Output is correct
27	Correct	271 ms	85276 KB	Output is correct
28	Correct	14 ms	10112 KB	Output is correct
29	Correct	25 ms	17408 KB	Output is correct
30	Correct	10 ms	9856 KB	Output is correct
31	Correct	247 ms	71160 KB	Output is correct
32	Correct	185 ms	87032 KB	Output is correct
33	Correct	193 ms	87160 KB	Output is correct
34	Correct	237 ms	78072 KB	Output is correct
35	Correct	217 ms	86960 KB	Output is correct
36	Correct	201 ms	87036 KB	Output is correct
37	Correct	284 ms	87544 KB	Output is correct
38	Correct	133 ms	70844 KB	Output is correct
39	Correct	146 ms	70916 KB	Output is correct