Submission #697991

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
697991	2023-02-11T17:53:15 Z	cpLover22	Bitaro the Brave (JOI19_ho_t1)	C++17	100 / 100	276 ms	88436 KB

joi2019_ho_t1

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

using ll = long long;

const int N = 3e3+5;

int m, n, cntO[N][N], cntI[N][N];
char c[N][N];

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

Subtask #1

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	1492 KB	Output is correct
6	Correct	1 ms	1492 KB	Output is correct
7	Correct	1 ms	1364 KB	Output is correct
8	Correct	1 ms	1492 KB	Output is correct
9	Correct	1 ms	1492 KB	Output is correct
10	Correct	1 ms	1380 KB	Output is correct
11	Correct	1 ms	1492 KB	Output is correct
12	Correct	1 ms	1492 KB	Output is correct
13	Correct	1 ms	1364 KB	Output is correct

Subtask #2

30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	1492 KB	Output is correct
6	Correct	1 ms	1492 KB	Output is correct
7	Correct	1 ms	1364 KB	Output is correct
8	Correct	1 ms	1492 KB	Output is correct
9	Correct	1 ms	1492 KB	Output is correct
10	Correct	1 ms	1380 KB	Output is correct
11	Correct	1 ms	1492 KB	Output is correct
12	Correct	1 ms	1492 KB	Output is correct
13	Correct	1 ms	1364 KB	Output is correct
14	Correct	9 ms	7508 KB	Output is correct
15	Correct	2 ms	4948 KB	Output is correct
16	Correct	4 ms	4308 KB	Output is correct
17	Correct	1 ms	460 KB	Output is correct
18	Correct	10 ms	8020 KB	Output is correct
19	Correct	8 ms	7892 KB	Output is correct
20	Correct	7 ms	7764 KB	Output is correct
21	Correct	11 ms	8020 KB	Output is correct
22	Correct	8 ms	7900 KB	Output is correct
23	Correct	7 ms	7768 KB	Output is correct
24	Correct	10 ms	7928 KB	Output is correct
25	Correct	8 ms	7892 KB	Output is correct
26	Correct	7 ms	7768 KB	Output is correct

Subtask #3

50.0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	340 KB	Output is correct
2	Correct	1 ms	340 KB	Output is correct
3	Correct	1 ms	332 KB	Output is correct
4	Correct	1 ms	340 KB	Output is correct
5	Correct	1 ms	1492 KB	Output is correct
6	Correct	1 ms	1492 KB	Output is correct
7	Correct	1 ms	1364 KB	Output is correct
8	Correct	1 ms	1492 KB	Output is correct
9	Correct	1 ms	1492 KB	Output is correct
10	Correct	1 ms	1380 KB	Output is correct
11	Correct	1 ms	1492 KB	Output is correct
12	Correct	1 ms	1492 KB	Output is correct
13	Correct	1 ms	1364 KB	Output is correct
14	Correct	9 ms	7508 KB	Output is correct
15	Correct	2 ms	4948 KB	Output is correct
16	Correct	4 ms	4308 KB	Output is correct
17	Correct	1 ms	460 KB	Output is correct
18	Correct	10 ms	8020 KB	Output is correct
19	Correct	8 ms	7892 KB	Output is correct
20	Correct	7 ms	7764 KB	Output is correct
21	Correct	11 ms	8020 KB	Output is correct
22	Correct	8 ms	7900 KB	Output is correct
23	Correct	7 ms	7768 KB	Output is correct
24	Correct	10 ms	7928 KB	Output is correct
25	Correct	8 ms	7892 KB	Output is correct
26	Correct	7 ms	7768 KB	Output is correct
27	Correct	261 ms	88028 KB	Output is correct
28	Correct	11 ms	25944 KB	Output is correct
29	Correct	17 ms	7832 KB	Output is correct
30	Correct	1 ms	596 KB	Output is correct
31	Correct	195 ms	72528 KB	Output is correct
32	Correct	217 ms	88436 KB	Output is correct
33	Correct	170 ms	88168 KB	Output is correct
34	Correct	232 ms	84056 KB	Output is correct
35	Correct	211 ms	88412 KB	Output is correct
36	Correct	170 ms	88228 KB	Output is correct
37	Correct	276 ms	88412 KB	Output is correct
38	Correct	144 ms	72528 KB	Output is correct
39	Correct	132 ms	72192 KB	Output is correct