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Submission #763659

# Submission time Handle Problem Language Result Execution time Memory
763659 2023-06-22T15:12:02 Z Blagoj Bitaro the Brave (JOI19_ho_t1) C++17
0 / 100
 2 ms 1236 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 < n - 1; j++) {
            if (v[i][j] == 'J') ans += row[i][j + 1] * col[i + 1][j];
        }
    }
    cout << ans;
}

Subtask #1
0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 1236 KB Output is correct
6 Correct 2 ms 1108 KB Output is correct
7 Incorrect 1 ms 1108 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #2
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 1236 KB Output is correct
6 Correct 2 ms 1108 KB Output is correct
7 Incorrect 1 ms 1108 KB Output isn't correct
8 Halted 0 ms 0 KB -

Subtask #3
0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 1236 KB Output is correct
6 Correct 2 ms 1108 KB Output is correct
7 Incorrect 1 ms 1108 KB Output isn't correct
8 Halted 0 ms 0 KB -