Submission #713012

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
713012	2023-03-20T20:32:42 Z	thimote75	Bitaro the Brave (JOI19_ho_t1)	C++14	100 / 100	422 ms	153436 KB

joi2019_ho_t1

#include <bits/stdc++.h>

using namespace std;

#define num long long

const int W = 3000;
const int H = W;

num dp0[W][H];
num dp1[W][H];
bool dp2[W][H];

int main () {
    int w, h;
    cin >> w >> h;

    for (int i = 0; i < w; i ++) {
        string b;
        cin >> b;

        for (int j = 0; j < h; j ++) {
            if (b[j] == 'J') dp2[i][j] = true;
            if (b[j] == 'O') dp1[i][j] = 1;
            if (b[j] == 'I') dp0[i][j] = 1;
        }
    }

    for (int i = w - 2; i >= 0; i --)
        for (int j = 0; j < h; j ++)
            dp0[i][j] += dp0[i + 1][j];
    for (int j = h - 2; j >= 0; j --)
        for (int i = 0; i < w; i ++)
            dp1[i][j] += dp1[i][j + 1];
    
    num ans = 0;
    for (int i = 0; i < w; i ++)
        for (int j = 0; j < h; j ++)
            if (dp2[i][j])
                ans += dp0[i][j] * dp1[i][j];
    
    cout << ans;
}

Subtask #1

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	304 KB	Output is correct
3	Correct	1 ms	212 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	1464 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	1340 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	1340 KB	Output is correct

Subtask #2

30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	304 KB	Output is correct
3	Correct	1 ms	212 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	1464 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	1340 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	1340 KB	Output is correct
14	Correct	11 ms	8900 KB	Output is correct
15	Correct	3 ms	4920 KB	Output is correct
16	Correct	6 ms	5184 KB	Output is correct
17	Correct	1 ms	468 KB	Output is correct
18	Correct	13 ms	9860 KB	Output is correct
19	Correct	10 ms	9728 KB	Output is correct
20	Correct	11 ms	9684 KB	Output is correct
21	Correct	12 ms	9832 KB	Output is correct
22	Correct	11 ms	9736 KB	Output is correct
23	Correct	10 ms	9664 KB	Output is correct
24	Correct	12 ms	9940 KB	Output is correct
25	Correct	10 ms	9736 KB	Output is correct
26	Correct	10 ms	9708 KB	Output is correct

Subtask #3

50.0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	212 KB	Output is correct
2	Correct	1 ms	304 KB	Output is correct
3	Correct	1 ms	212 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	1464 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	1340 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	1340 KB	Output is correct
14	Correct	11 ms	8900 KB	Output is correct
15	Correct	3 ms	4920 KB	Output is correct
16	Correct	6 ms	5184 KB	Output is correct
17	Correct	1 ms	468 KB	Output is correct
18	Correct	13 ms	9860 KB	Output is correct
19	Correct	10 ms	9728 KB	Output is correct
20	Correct	11 ms	9684 KB	Output is correct
21	Correct	12 ms	9832 KB	Output is correct
22	Correct	11 ms	9736 KB	Output is correct
23	Correct	10 ms	9664 KB	Output is correct
24	Correct	12 ms	9940 KB	Output is correct
25	Correct	10 ms	9736 KB	Output is correct
26	Correct	10 ms	9708 KB	Output is correct
27	Correct	403 ms	153424 KB	Output is correct
28	Correct	12 ms	25724 KB	Output is correct
29	Correct	22 ms	13780 KB	Output is correct
30	Correct	1 ms	708 KB	Output is correct
31	Correct	310 ms	128436 KB	Output is correct
32	Correct	358 ms	153416 KB	Output is correct
33	Correct	337 ms	153048 KB	Output is correct
34	Correct	345 ms	148428 KB	Output is correct
35	Correct	358 ms	153436 KB	Output is correct
36	Correct	337 ms	152960 KB	Output is correct
37	Correct	422 ms	153420 KB	Output is correct
38	Correct	251 ms	127720 KB	Output is correct
39	Correct	240 ms	127972 KB	Output is correct