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Submission #763661

# Submission time Handle Problem Language Result Execution time Memory
763661 2023-06-22T15:13:28 Z Blagoj Bitaro the Brave (JOI19_ho_t1) C++17
100 / 100
 221 ms 89392 KB 
#include <bits/stdc++.h>

#pragma GCC optimize("Ofast,unroll-loops")

using namespace std;

#define endl '\n'
#define ll long long
#define all(x) x.begin(), x.end()

int col[3002][3002], row[3002][3002];

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    int n, m;
    cin >> n >> m;
    vector<string> v(n);
    for (int i = 0; i < n; i++) cin >> v[i];
    for (int i = 0; i < n; i++) {
        for (int j = m - 1; j >= 0; j--) {
            row[i][j] = row[i][j + 1];
            row[i][j] += (v[i][j] == 'O');
        }
    }
    for (int j = 0; j < m; j++) {
        for (int i = n - 1; i >= 0; i--) {
            col[i][j] += col[i + 1][j];
            col[i][j] += (v[i][j] == 'I');
        }
    }
    ll ans = 0;
    for (int i = 0; i < n - 1; i++) {
        for (int j = 0; j < m - 1; j++) {
            if (v[i][j] == 'J') ans += row[i][j + 1] * col[i + 1][j];
        }
    }
    cout << ans;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 2 ms 1108 KB Output is correct
6 Correct 1 ms 1108 KB Output is correct
7 Correct 1 ms 1108 KB Output is correct
8 Correct 1 ms 1236 KB Output is correct
9 Correct 1 ms 1108 KB Output is correct
10 Correct 1 ms 1108 KB Output is correct
11 Correct 1 ms 1236 KB Output is correct
12 Correct 1 ms 1108 KB Output is correct
13 Correct 1 ms 1108 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 2 ms 1108 KB Output is correct
6 Correct 1 ms 1108 KB Output is correct
7 Correct 1 ms 1108 KB Output is correct
8 Correct 1 ms 1236 KB Output is correct
9 Correct 1 ms 1108 KB Output is correct
10 Correct 1 ms 1108 KB Output is correct
11 Correct 1 ms 1236 KB Output is correct
12 Correct 1 ms 1108 KB Output is correct
13 Correct 1 ms 1108 KB Output is correct
14 Correct 5 ms 6228 KB Output is correct
15 Correct 2 ms 3668 KB Output is correct
16 Correct 2 ms 3668 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 5 ms 6740 KB Output is correct
19 Correct 4 ms 6612 KB Output is correct
20 Correct 5 ms 6612 KB Output is correct
21 Correct 6 ms 6720 KB Output is correct
22 Correct 5 ms 6628 KB Output is correct
23 Correct 5 ms 6612 KB Output is correct
24 Correct 6 ms 6864 KB Output is correct
25 Correct 5 ms 6612 KB Output is correct
26 Correct 4 ms 6612 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 2 ms 1108 KB Output is correct
6 Correct 1 ms 1108 KB Output is correct
7 Correct 1 ms 1108 KB Output is correct
8 Correct 1 ms 1236 KB Output is correct
9 Correct 1 ms 1108 KB Output is correct
10 Correct 1 ms 1108 KB Output is correct
11 Correct 1 ms 1236 KB Output is correct
12 Correct 1 ms 1108 KB Output is correct
13 Correct 1 ms 1108 KB Output is correct
14 Correct 5 ms 6228 KB Output is correct
15 Correct 2 ms 3668 KB Output is correct
16 Correct 2 ms 3668 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 5 ms 6740 KB Output is correct
19 Correct 4 ms 6612 KB Output is correct
20 Correct 5 ms 6612 KB Output is correct
21 Correct 6 ms 6720 KB Output is correct
22 Correct 5 ms 6628 KB Output is correct
23 Correct 5 ms 6612 KB Output is correct
24 Correct 6 ms 6864 KB Output is correct
25 Correct 5 ms 6612 KB Output is correct
26 Correct 4 ms 6612 KB Output is correct
27 Correct 206 ms 88220 KB Output is correct
28 Correct 11 ms 19252 KB Output is correct
29 Correct 7 ms 7732 KB Output is correct
30 Correct 1 ms 596 KB Output is correct
31 Correct 153 ms 71836 KB Output is correct
32 Correct 203 ms 89268 KB Output is correct
33 Correct 202 ms 89040 KB Output is correct
34 Correct 186 ms 83344 KB Output is correct
35 Correct 197 ms 89292 KB Output is correct
36 Correct 196 ms 89036 KB Output is correct
37 Correct 221 ms 89392 KB Output is correct
38 Correct 132 ms 71716 KB Output is correct
39 Correct 128 ms 71492 KB Output is correct