oj.uz

Submission #791876

# Submission time Handle Problem Language Result Execution time Memory
791876 2023-07-24T12:02:02 Z Boomyday Bitaro the Brave (JOI19_ho_t1) C++17
100 / 100
 435 ms 115192 KB 
#include <iostream>
#include <vector>
using namespace std;

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

    vector<vector<int>> grid;

    for (int i = 0; i < H; ++i) {
        string st;
        cin >> st;
        vector<int> row;
        for (int j = 0; j < W; ++j) {
            if (st[j] == 'J')
                row.push_back(0);
            else if (st[j] == 'O')
                row.push_back(1);
            else if (st[j] == 'I')
                row.push_back(2);
        }
        grid.push_back(row);
    }

    vector<vector<int>> grido(H + 1, vector<int>(W + 1, 0));
    vector<vector<int>> gridi(H + 1, vector<int>(W + 1, 0));

    // Calculate 'o' values
    for (int row = 0; row < H; ++row) {
        for (int col = W - 1; col >= 0; --col) {
            int num = (grid[row][col] == 1);
            grido[row][col] = grido[row][col + 1] + num;
        }
    }

    // Calculate 'i' values
    for (int col = 0; col < W; ++col) {
        for (int row = H - 1; row >= 0; --row) {
            int num = (grid[row][col] == 2);
            gridi[row][col] = gridi[row + 1][col] + num;
        }
    }

    long long ans = 0;

    for (int row = 0; row < H; ++row) {
        for (int col = 0; col < W; ++col) {
            if (grid[row][col] == 0) {
                ans += grido[row][col + 1] * gridi[row + 1][col];
            }
        }
    }

    cout << ans << endl;

    return 0;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 7 ms 2516 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 4 ms 1748 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 9 ms 3284 KB Output is correct
19 Correct 7 ms 3156 KB Output is correct
20 Correct 7 ms 3156 KB Output is correct
21 Correct 11 ms 3244 KB Output is correct
22 Correct 7 ms 3156 KB Output is correct
23 Correct 7 ms 3156 KB Output is correct
24 Correct 10 ms 3284 KB Output is correct
25 Correct 7 ms 3108 KB Output is correct
26 Correct 7 ms 3156 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 1 ms 340 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 1 ms 340 KB Output is correct
12 Correct 1 ms 340 KB Output is correct
13 Correct 1 ms 340 KB Output is correct
14 Correct 7 ms 2516 KB Output is correct
15 Correct 1 ms 340 KB Output is correct
16 Correct 4 ms 1748 KB Output is correct
17 Correct 0 ms 340 KB Output is correct
18 Correct 9 ms 3284 KB Output is correct
19 Correct 7 ms 3156 KB Output is correct
20 Correct 7 ms 3156 KB Output is correct
21 Correct 11 ms 3244 KB Output is correct
22 Correct 7 ms 3156 KB Output is correct
23 Correct 7 ms 3156 KB Output is correct
24 Correct 10 ms 3284 KB Output is correct
25 Correct 7 ms 3108 KB Output is correct
26 Correct 7 ms 3156 KB Output is correct
27 Correct 405 ms 100472 KB Output is correct
28 Correct 2 ms 852 KB Output is correct
29 Correct 17 ms 8532 KB Output is correct
30 Correct 1 ms 596 KB Output is correct
31 Correct 309 ms 80064 KB Output is correct
32 Correct 355 ms 114340 KB Output is correct
33 Correct 360 ms 114816 KB Output is correct
34 Correct 337 ms 92928 KB Output is correct
35 Correct 358 ms 114424 KB Output is correct
36 Correct 344 ms 114808 KB Output is correct
37 Correct 435 ms 115192 KB Output is correct
38 Correct 249 ms 79504 KB Output is correct
39 Correct 258 ms 79836 KB Output is correct