Submission #110329

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
110329	2019-05-10T17:28:02 Z	Leonardo_Paes	Bitaro the Brave (JOI19_ho_t1)	C++11	100 / 100	799 ms	150904 KB

joi2019_ho_t1

#include <bits/stdc++.h>

using namespace std;

const int maxn = 3e3+10;

char mat[maxn][maxn];

long long prefi[maxn][maxn], prefo[maxn][maxn];

int main(){

    int h, w;

    cin >> h >> w;

    for(int i=1; i<=h; i++){
        for(int j=1; j<=w; j++){
            cin >> mat[i][j];
        }
    }

    for(int i=1; i<=h; i++){
        for(int j=w; j>=1; j--){
            if(mat[i][j]=='O')prefo[i][j]=1;
            prefo[i][j]+=prefo[i][j+1];
        }
    }

    for(int i=h; i>=1; i--){
        for(int j=1; j<=w; j++){
            if(mat[i][j]=='I')prefi[i][j]=1;
            prefi[i][j]+=prefi[i+1][j];
        }
    }

    long long ans=0;

    for(int i=1; i<=h; i++){
        for(int j=1; j<=w; j++){
            if(mat[i][j]=='J'){
                ans+=prefi[i][j]*prefo[i][j];
            }
        }
    }

    cout << ans << endl;
}

Subtask #1

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	384 KB	Output is correct
2	Correct	3 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	3 ms	512 KB	Output is correct
5	Correct	4 ms	1664 KB	Output is correct
6	Correct	4 ms	1536 KB	Output is correct
7	Correct	4 ms	1536 KB	Output is correct
8	Correct	4 ms	1664 KB	Output is correct
9	Correct	4 ms	1536 KB	Output is correct
10	Correct	4 ms	1408 KB	Output is correct
11	Correct	4 ms	1664 KB	Output is correct
12	Correct	4 ms	1536 KB	Output is correct
13	Correct	4 ms	1536 KB	Output is correct

Subtask #2

30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	384 KB	Output is correct
2	Correct	3 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	3 ms	512 KB	Output is correct
5	Correct	4 ms	1664 KB	Output is correct
6	Correct	4 ms	1536 KB	Output is correct
7	Correct	4 ms	1536 KB	Output is correct
8	Correct	4 ms	1664 KB	Output is correct
9	Correct	4 ms	1536 KB	Output is correct
10	Correct	4 ms	1408 KB	Output is correct
11	Correct	4 ms	1664 KB	Output is correct
12	Correct	4 ms	1536 KB	Output is correct
13	Correct	4 ms	1536 KB	Output is correct
14	Correct	23 ms	8832 KB	Output is correct
15	Correct	6 ms	4992 KB	Output is correct
16	Correct	13 ms	5248 KB	Output is correct
17	Correct	2 ms	512 KB	Output is correct
18	Correct	30 ms	9848 KB	Output is correct
19	Correct	33 ms	9720 KB	Output is correct
20	Correct	30 ms	9728 KB	Output is correct
21	Correct	28 ms	9856 KB	Output is correct
22	Correct	24 ms	9700 KB	Output is correct
23	Correct	28 ms	9720 KB	Output is correct
24	Correct	30 ms	9948 KB	Output is correct
25	Correct	24 ms	9720 KB	Output is correct
26	Correct	29 ms	9724 KB	Output is correct

Subtask #3

50.0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	2 ms	384 KB	Output is correct
2	Correct	3 ms	384 KB	Output is correct
3	Correct	2 ms	384 KB	Output is correct
4	Correct	3 ms	512 KB	Output is correct
5	Correct	4 ms	1664 KB	Output is correct
6	Correct	4 ms	1536 KB	Output is correct
7	Correct	4 ms	1536 KB	Output is correct
8	Correct	4 ms	1664 KB	Output is correct
9	Correct	4 ms	1536 KB	Output is correct
10	Correct	4 ms	1408 KB	Output is correct
11	Correct	4 ms	1664 KB	Output is correct
12	Correct	4 ms	1536 KB	Output is correct
13	Correct	4 ms	1536 KB	Output is correct
14	Correct	23 ms	8832 KB	Output is correct
15	Correct	6 ms	4992 KB	Output is correct
16	Correct	13 ms	5248 KB	Output is correct
17	Correct	2 ms	512 KB	Output is correct
18	Correct	30 ms	9848 KB	Output is correct
19	Correct	33 ms	9720 KB	Output is correct
20	Correct	30 ms	9728 KB	Output is correct
21	Correct	28 ms	9856 KB	Output is correct
22	Correct	24 ms	9700 KB	Output is correct
23	Correct	28 ms	9720 KB	Output is correct
24	Correct	30 ms	9948 KB	Output is correct
25	Correct	24 ms	9720 KB	Output is correct
26	Correct	29 ms	9724 KB	Output is correct
27	Correct	799 ms	150748 KB	Output is correct
28	Correct	28 ms	26336 KB	Output is correct
29	Correct	54 ms	13432 KB	Output is correct
30	Correct	5 ms	768 KB	Output is correct
31	Correct	612 ms	125620 KB	Output is correct
32	Correct	718 ms	150904 KB	Output is correct
33	Correct	707 ms	150296 KB	Output is correct
34	Correct	668 ms	145892 KB	Output is correct
35	Correct	742 ms	150776 KB	Output is correct
36	Correct	756 ms	150264 KB	Output is correct
37	Correct	715 ms	150744 KB	Output is correct
38	Correct	517 ms	124920 KB	Output is correct
39	Correct	453 ms	125140 KB	Output is correct