Submission #108724

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
108724	2019-05-01T07:41:35 Z	tictaccat	Bitaro the Brave (JOI19_ho_t1)	C++14	100 / 100	783 ms	106744 KB

joi2019_ho_t1

//testing

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

const int MAX = 3000 + 10;

int H,W;
vector<vector<int>> grid(MAX,vector<int>(MAX));
int ups2[MAX][MAX], lefts1[MAX][MAX];

int main() {
    
    cin >> H >> W;

    for (int i = 0; i < H; i++) {
        for (int j = 0; j < W; j++) {
            char c; cin >> c;
            if (c == 'J') grid[i][j] = 0;
            else if (c == 'O') grid[i][j] = 1;
            else grid[i][j] = 2;
         }
    }

    ll c = 0;

    for (int i = H-1; i >= 0; i--) {
        for (int j = W-1; j >= 0; j--) {
            ups2[i][j] = ups2[i+1][j];
            lefts1[i][j] = lefts1[i][j+1];
            ll ways = 0;
            if (grid[i][j] == 0) {
                ways += (ll)ups2[i][j]*lefts1[i][j];
            }
            else if (grid[i][j] == 1) {
                lefts1[i][j]++;
            }
            else if (grid[i][j] == 2) {
                ups2[i][j]++;
            }           
            c += ways;
        }
    }

    cout << c << "\n";


}

Subtask #1

20.0 / 20.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	45 ms	35960 KB	Output is correct
2	Correct	36 ms	35840 KB	Output is correct
3	Correct	38 ms	35832 KB	Output is correct
4	Correct	53 ms	35960 KB	Output is correct
5	Correct	33 ms	36728 KB	Output is correct
6	Correct	38 ms	36728 KB	Output is correct
7	Correct	34 ms	36608 KB	Output is correct
8	Correct	32 ms	36680 KB	Output is correct
9	Correct	31 ms	36728 KB	Output is correct
10	Correct	33 ms	36600 KB	Output is correct
11	Correct	33 ms	36728 KB	Output is correct
12	Correct	34 ms	36728 KB	Output is correct
13	Correct	32 ms	36736 KB	Output is correct

Subtask #2

30.0 / 30.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	45 ms	35960 KB	Output is correct
2	Correct	36 ms	35840 KB	Output is correct
3	Correct	38 ms	35832 KB	Output is correct
4	Correct	53 ms	35960 KB	Output is correct
5	Correct	33 ms	36728 KB	Output is correct
6	Correct	38 ms	36728 KB	Output is correct
7	Correct	34 ms	36608 KB	Output is correct
8	Correct	32 ms	36680 KB	Output is correct
9	Correct	31 ms	36728 KB	Output is correct
10	Correct	33 ms	36600 KB	Output is correct
11	Correct	33 ms	36728 KB	Output is correct
12	Correct	34 ms	36728 KB	Output is correct
13	Correct	32 ms	36736 KB	Output is correct
14	Correct	52 ms	41436 KB	Output is correct
15	Correct	38 ms	39288 KB	Output is correct
16	Correct	48 ms	39032 KB	Output is correct
17	Correct	32 ms	35960 KB	Output is correct
18	Correct	57 ms	41848 KB	Output is correct
19	Correct	54 ms	41720 KB	Output is correct
20	Correct	58 ms	41720 KB	Output is correct
21	Correct	55 ms	41848 KB	Output is correct
22	Correct	51 ms	41720 KB	Output is correct
23	Correct	87 ms	41752 KB	Output is correct
24	Correct	54 ms	41848 KB	Output is correct
25	Correct	61 ms	41848 KB	Output is correct
26	Correct	51 ms	41720 KB	Output is correct

Subtask #3

50.0 / 50.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	45 ms	35960 KB	Output is correct
2	Correct	36 ms	35840 KB	Output is correct
3	Correct	38 ms	35832 KB	Output is correct
4	Correct	53 ms	35960 KB	Output is correct
5	Correct	33 ms	36728 KB	Output is correct
6	Correct	38 ms	36728 KB	Output is correct
7	Correct	34 ms	36608 KB	Output is correct
8	Correct	32 ms	36680 KB	Output is correct
9	Correct	31 ms	36728 KB	Output is correct
10	Correct	33 ms	36600 KB	Output is correct
11	Correct	33 ms	36728 KB	Output is correct
12	Correct	34 ms	36728 KB	Output is correct
13	Correct	32 ms	36736 KB	Output is correct
14	Correct	52 ms	41436 KB	Output is correct
15	Correct	38 ms	39288 KB	Output is correct
16	Correct	48 ms	39032 KB	Output is correct
17	Correct	32 ms	35960 KB	Output is correct
18	Correct	57 ms	41848 KB	Output is correct
19	Correct	54 ms	41720 KB	Output is correct
20	Correct	58 ms	41720 KB	Output is correct
21	Correct	55 ms	41848 KB	Output is correct
22	Correct	51 ms	41720 KB	Output is correct
23	Correct	87 ms	41752 KB	Output is correct
24	Correct	54 ms	41848 KB	Output is correct
25	Correct	61 ms	41848 KB	Output is correct
26	Correct	51 ms	41720 KB	Output is correct
27	Correct	627 ms	106616 KB	Output is correct
28	Correct	50 ms	54648 KB	Output is correct
29	Correct	89 ms	41976 KB	Output is correct
30	Correct	32 ms	36088 KB	Output is correct
31	Correct	532 ms	94836 KB	Output is correct
32	Correct	603 ms	106552 KB	Output is correct
33	Correct	605 ms	106336 KB	Output is correct
34	Correct	541 ms	104184 KB	Output is correct
35	Correct	597 ms	106616 KB	Output is correct
36	Correct	583 ms	106360 KB	Output is correct
37	Correct	783 ms	106744 KB	Output is correct
38	Correct	477 ms	94852 KB	Output is correct
39	Correct	491 ms	94584 KB	Output is correct