oj.uz

Submission #679370

# Submission time Handle Problem Language Result Execution time Memory
679370 2023-01-08T07:20:04 Z Duy_e Bitaro the Brave (JOI19_ho_t1) C++14
100 / 100
 234 ms 150636 KB 
#include <bits/stdc++.h>
#define ll long long
#define pii pair <ll, ll>
#define st first
#define nd second
#define rep(i, n, m) for (ll i = (n); i <= (m); i ++)
#define rrep(i, m, n) for (ll i = (m); i >= (n); i --)

using namespace std;
const long long N = 3000 + 5;

ll n, m, f[N][N], g[N][N];
char a[N][N];

int main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);

    cin >> n >> m;
    rep(i, 1, n) rep(j, 1, m)
        cin >> a[i][j];

    rep(i, 1, n) {
        rep(j, 1, m) {
            f[i][j] = f[i][j - 1] + (a[i][j] == 'O');
            g[i][j] = g[i - 1][j] + (a[i][j] == 'I');
        }
    }

    ll ans = 0;
    rep(i, 1, n) rep(j, 1, m) if (a[i][j] == 'J') {
        ll cntO = f[i][m] - f[i][j];
        ll cntI = g[n][j] - g[i][j];
        ans += cntO * cntI;
    }

    cout << ans;
    return 0;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 1492 KB Output is correct
6 Correct 2 ms 1492 KB Output is correct
7 Correct 2 ms 1364 KB Output is correct
8 Correct 2 ms 1492 KB Output is correct
9 Correct 2 ms 1536 KB Output is correct
10 Correct 2 ms 1364 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 1364 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 1492 KB Output is correct
6 Correct 2 ms 1492 KB Output is correct
7 Correct 2 ms 1364 KB Output is correct
8 Correct 2 ms 1492 KB Output is correct
9 Correct 2 ms 1536 KB Output is correct
10 Correct 2 ms 1364 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 1364 KB Output is correct
14 Correct 7 ms 8788 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 4 ms 5192 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 9 ms 9748 KB Output is correct
19 Correct 9 ms 9540 KB Output is correct
20 Correct 9 ms 9536 KB Output is correct
21 Correct 9 ms 9684 KB Output is correct
22 Correct 9 ms 9556 KB Output is correct
23 Correct 8 ms 9556 KB Output is correct
24 Correct 9 ms 9684 KB Output is correct
25 Correct 10 ms 9556 KB Output is correct
26 Correct 10 ms 9464 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 0 ms 340 KB Output is correct
5 Correct 1 ms 1492 KB Output is correct
6 Correct 2 ms 1492 KB Output is correct
7 Correct 2 ms 1364 KB Output is correct
8 Correct 2 ms 1492 KB Output is correct
9 Correct 2 ms 1536 KB Output is correct
10 Correct 2 ms 1364 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 1364 KB Output is correct
14 Correct 7 ms 8788 KB Output is correct
15 Correct 3 ms 4948 KB Output is correct
16 Correct 4 ms 5192 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 9 ms 9748 KB Output is correct
19 Correct 9 ms 9540 KB Output is correct
20 Correct 9 ms 9536 KB Output is correct
21 Correct 9 ms 9684 KB Output is correct
22 Correct 9 ms 9556 KB Output is correct
23 Correct 8 ms 9556 KB Output is correct
24 Correct 9 ms 9684 KB Output is correct
25 Correct 10 ms 9556 KB Output is correct
26 Correct 10 ms 9464 KB Output is correct
27 Correct 218 ms 150264 KB Output is correct
28 Correct 14 ms 26316 KB Output is correct
29 Correct 18 ms 13516 KB Output is correct
30 Correct 2 ms 724 KB Output is correct
31 Correct 196 ms 125456 KB Output is correct
32 Correct 200 ms 150636 KB Output is correct
33 Correct 192 ms 149984 KB Output is correct
34 Correct 213 ms 145484 KB Output is correct
35 Correct 201 ms 150576 KB Output is correct
36 Correct 198 ms 149952 KB Output is correct
37 Correct 234 ms 150484 KB Output is correct
38 Correct 150 ms 124980 KB Output is correct
39 Correct 147 ms 124972 KB Output is correct