Submission #754670

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
754670	2023-06-08T10:17:30 Z	KN200711	Bitaro the Brave (JOI19_ho_t1)	C++14	100 / 100	338 ms	88420 KB

joi2019_ho_t1

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

char arr[3002][3002];
int O[3002][3002], I[3002][3002];

int main() {
	ios_base::sync_with_stdio(0);
	cin.tie(0);
	
	int N, M;
	cin>>N>>M;
	for(int i=1;i<=N;i++) {
		for(int k=1;k<=M;k++) {
			cin>>arr[i][k];
		}
	}
	for(int i=1;i<=N;i++) {
		for(int k=M;k>=1;k--) {
			O[i][k] = O[i][k + 1];
			if(arr[i][k] == 'O') O[i][k]++;
		}
	}
	
	for(int i=1;i<=M;i++) {
		for(int k=N;k>=1;k--) {
			I[k][i] = I[k+1][i];
			if(arr[k][i] == 'I') I[k][i]++;
		}
	}
	
	ll ans = 0ll;
	for(int i=1;i<=N;i++) {
		for(int k=1;k<=M;k++) {
			if(arr[i][k] != 'J') continue;
			ans += 1ll * O[i][k] * 1ll * I[i][k];
		//	cout<<i<<" "<<k<<" "<<O[i][k]<<" "<<I[i][k]<<endl;
		}
	}
	
	cout<<ans<<endl;
	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	2 ms	1492 KB	Output is correct
9	Correct	1 ms	1492 KB	Output is correct
10	Correct	1 ms	1364 KB	Output is correct
11	Correct	1 ms	1492 KB	Output is correct
12	Correct	2 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	2 ms	1492 KB	Output is correct
9	Correct	1 ms	1492 KB	Output is correct
10	Correct	1 ms	1364 KB	Output is correct
11	Correct	1 ms	1492 KB	Output is correct
12	Correct	2 ms	1492 KB	Output is correct
13	Correct	1 ms	1364 KB	Output is correct
14	Correct	8 ms	7424 KB	Output is correct
15	Correct	3 ms	4948 KB	Output is correct
16	Correct	6 ms	4308 KB	Output is correct
17	Correct	1 ms	468 KB	Output is correct
18	Correct	12 ms	7968 KB	Output is correct
19	Correct	9 ms	7884 KB	Output is correct
20	Correct	9 ms	7880 KB	Output is correct
21	Correct	11 ms	7984 KB	Output is correct
22	Correct	9 ms	7920 KB	Output is correct
23	Correct	9 ms	7764 KB	Output is correct
24	Correct	10 ms	8016 KB	Output is correct
25	Correct	8 ms	7892 KB	Output is correct
26	Correct	8 ms	7764 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	2 ms	1492 KB	Output is correct
9	Correct	1 ms	1492 KB	Output is correct
10	Correct	1 ms	1364 KB	Output is correct
11	Correct	1 ms	1492 KB	Output is correct
12	Correct	2 ms	1492 KB	Output is correct
13	Correct	1 ms	1364 KB	Output is correct
14	Correct	8 ms	7424 KB	Output is correct
15	Correct	3 ms	4948 KB	Output is correct
16	Correct	6 ms	4308 KB	Output is correct
17	Correct	1 ms	468 KB	Output is correct
18	Correct	12 ms	7968 KB	Output is correct
19	Correct	9 ms	7884 KB	Output is correct
20	Correct	9 ms	7880 KB	Output is correct
21	Correct	11 ms	7984 KB	Output is correct
22	Correct	9 ms	7920 KB	Output is correct
23	Correct	9 ms	7764 KB	Output is correct
24	Correct	10 ms	8016 KB	Output is correct
25	Correct	8 ms	7892 KB	Output is correct
26	Correct	8 ms	7764 KB	Output is correct
27	Correct	327 ms	87884 KB	Output is correct
28	Correct	13 ms	25940 KB	Output is correct
29	Correct	14 ms	7764 KB	Output is correct
30	Correct	1 ms	596 KB	Output is correct
31	Correct	260 ms	72516 KB	Output is correct
32	Correct	288 ms	88348 KB	Output is correct
33	Correct	290 ms	88096 KB	Output is correct
34	Correct	305 ms	84124 KB	Output is correct
35	Correct	280 ms	88360 KB	Output is correct
36	Correct	287 ms	88124 KB	Output is correct
37	Correct	338 ms	88420 KB	Output is correct
38	Correct	241 ms	72352 KB	Output is correct
39	Correct	202 ms	72284 KB	Output is correct