Submission #868512

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
868512	2023-10-31T15:38:00 Z	amirhoseinfar1385	Bitaro the Brave (JOI19_ho_t1)	C++17	100 / 100	230 ms	88760 KB

joi2019_ho_t1

#include<bits/stdc++.h>
using namespace std;
const int maxn=3000+10;
char all[maxn][maxn];
int dp1[maxn][maxn],dp2[maxn][maxn];

int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	cout.tie(0);
	int n,m;
	cin>>n>>m;
	for(int i=0;i<n;i++){
		for(int j=0;j<m;j++){
			cin>>all[i][j];
		}
	}
	for(int j=0;j<m;j++){
		for(int i=n-1;i>=0;i--){
			dp1[i][j]+=dp1[i+1][j];
			if(all[i+1][j]=='I'){
				dp1[i][j]++;
			}
		}
	}
	for(int i=0;i<n;i++){
		for(int j=m-1;j>=0;j--){
			dp2[i][j]+=dp2[i][j+1];
			if(all[i][j+1]=='O'){
				dp2[i][j]++;
			}
		}
	}
	long long res=0;
	for(int i=0;i<n;i++){
		for(int j=0;j<m;j++){
			if(all[i][j]=='J'){
				res+=1ll*dp1[i][j]*dp2[i][j];
			}
		}
	}
	cout<<res<<"\n";
}

Subtask #1

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2648 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	1 ms	3420 KB	Output is correct
6	Correct	1 ms	3288 KB	Output is correct
7	Correct	1 ms	3164 KB	Output is correct
8	Correct	1 ms	3288 KB	Output is correct
9	Correct	1 ms	3160 KB	Output is correct
10	Correct	1 ms	3164 KB	Output is correct
11	Correct	1 ms	3420 KB	Output is correct
12	Correct	1 ms	3164 KB	Output is correct
13	Correct	1 ms	3164 KB	Output is correct

Subtask #2

30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2648 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	1 ms	3420 KB	Output is correct
6	Correct	1 ms	3288 KB	Output is correct
7	Correct	1 ms	3164 KB	Output is correct
8	Correct	1 ms	3288 KB	Output is correct
9	Correct	1 ms	3160 KB	Output is correct
10	Correct	1 ms	3164 KB	Output is correct
11	Correct	1 ms	3420 KB	Output is correct
12	Correct	1 ms	3164 KB	Output is correct
13	Correct	1 ms	3164 KB	Output is correct
14	Correct	7 ms	10076 KB	Output is correct
15	Correct	2 ms	7772 KB	Output is correct
16	Correct	4 ms	5724 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	8 ms	10588 KB	Output is correct
19	Correct	6 ms	10588 KB	Output is correct
20	Correct	8 ms	10588 KB	Output is correct
21	Correct	8 ms	10572 KB	Output is correct
22	Correct	7 ms	10588 KB	Output is correct
23	Correct	6 ms	10564 KB	Output is correct
24	Correct	8 ms	10588 KB	Output is correct
25	Correct	7 ms	10588 KB	Output is correct
26	Correct	7 ms	10588 KB	Output is correct

Subtask #3

50.0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2392 KB	Output is correct
2	Correct	1 ms	2648 KB	Output is correct
3	Correct	1 ms	2396 KB	Output is correct
4	Correct	1 ms	2396 KB	Output is correct
5	Correct	1 ms	3420 KB	Output is correct
6	Correct	1 ms	3288 KB	Output is correct
7	Correct	1 ms	3164 KB	Output is correct
8	Correct	1 ms	3288 KB	Output is correct
9	Correct	1 ms	3160 KB	Output is correct
10	Correct	1 ms	3164 KB	Output is correct
11	Correct	1 ms	3420 KB	Output is correct
12	Correct	1 ms	3164 KB	Output is correct
13	Correct	1 ms	3164 KB	Output is correct
14	Correct	7 ms	10076 KB	Output is correct
15	Correct	2 ms	7772 KB	Output is correct
16	Correct	4 ms	5724 KB	Output is correct
17	Correct	1 ms	2396 KB	Output is correct
18	Correct	8 ms	10588 KB	Output is correct
19	Correct	6 ms	10588 KB	Output is correct
20	Correct	8 ms	10588 KB	Output is correct
21	Correct	8 ms	10572 KB	Output is correct
22	Correct	7 ms	10588 KB	Output is correct
23	Correct	6 ms	10564 KB	Output is correct
24	Correct	8 ms	10588 KB	Output is correct
25	Correct	7 ms	10588 KB	Output is correct
26	Correct	7 ms	10588 KB	Output is correct
27	Correct	229 ms	88148 KB	Output is correct
28	Correct	9 ms	27484 KB	Output is correct
29	Correct	12 ms	9180 KB	Output is correct
30	Correct	1 ms	2652 KB	Output is correct
31	Correct	152 ms	73652 KB	Output is correct
32	Correct	220 ms	88752 KB	Output is correct
33	Correct	187 ms	88660 KB	Output is correct
34	Correct	182 ms	85312 KB	Output is correct
35	Correct	200 ms	88760 KB	Output is correct
36	Correct	184 ms	88508 KB	Output is correct
37	Correct	230 ms	88660 KB	Output is correct
38	Correct	122 ms	73708 KB	Output is correct
39	Correct	123 ms	73296 KB	Output is correct