oj.uz

Submission #679364

# Submission time Handle Problem Language Result Execution time Memory
679364 2023-01-08T07:16:20 Z vjudge1 Bitaro the Brave (JOI19_ho_t1) C++14
100 / 100
 228 ms 150708 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 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 1492 KB Output is correct
6 Correct 1 ms 1492 KB Output is correct
7 Correct 2 ms 1364 KB Output is correct
8 Correct 2 ms 1484 KB Output is correct
9 Correct 1 ms 1492 KB Output is correct
10 Correct 1 ms 1364 KB Output is correct
11 Correct 1 ms 1488 KB Output is correct
12 Correct 2 ms 1492 KB Output is correct
13 Correct 1 ms 1360 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 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 1492 KB Output is correct
6 Correct 1 ms 1492 KB Output is correct
7 Correct 2 ms 1364 KB Output is correct
8 Correct 2 ms 1484 KB Output is correct
9 Correct 1 ms 1492 KB Output is correct
10 Correct 1 ms 1364 KB Output is correct
11 Correct 1 ms 1488 KB Output is correct
12 Correct 2 ms 1492 KB Output is correct
13 Correct 1 ms 1360 KB Output is correct
14 Correct 8 ms 8916 KB Output is correct
15 Correct 3 ms 4936 KB Output is correct
16 Correct 5 ms 5332 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 9 ms 9992 KB Output is correct
19 Correct 11 ms 9772 KB Output is correct
20 Correct 9 ms 9772 KB Output is correct
21 Correct 9 ms 9912 KB Output is correct
22 Correct 8 ms 9704 KB Output is correct
23 Correct 9 ms 9732 KB Output is correct
24 Correct 10 ms 9940 KB Output is correct
25 Correct 9 ms 9788 KB Output is correct
26 Correct 10 ms 9684 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 1 ms 340 KB Output is correct
3 Correct 1 ms 340 KB Output is correct
4 Correct 1 ms 340 KB Output is correct
5 Correct 1 ms 1492 KB Output is correct
6 Correct 1 ms 1492 KB Output is correct
7 Correct 2 ms 1364 KB Output is correct
8 Correct 2 ms 1484 KB Output is correct
9 Correct 1 ms 1492 KB Output is correct
10 Correct 1 ms 1364 KB Output is correct
11 Correct 1 ms 1488 KB Output is correct
12 Correct 2 ms 1492 KB Output is correct
13 Correct 1 ms 1360 KB Output is correct
14 Correct 8 ms 8916 KB Output is correct
15 Correct 3 ms 4936 KB Output is correct
16 Correct 5 ms 5332 KB Output is correct
17 Correct 1 ms 468 KB Output is correct
18 Correct 9 ms 9992 KB Output is correct
19 Correct 11 ms 9772 KB Output is correct
20 Correct 9 ms 9772 KB Output is correct
21 Correct 9 ms 9912 KB Output is correct
22 Correct 8 ms 9704 KB Output is correct
23 Correct 9 ms 9732 KB Output is correct
24 Correct 10 ms 9940 KB Output is correct
25 Correct 9 ms 9788 KB Output is correct
26 Correct 10 ms 9684 KB Output is correct
27 Correct 222 ms 150652 KB Output is correct
28 Correct 12 ms 26324 KB Output is correct
29 Correct 16 ms 13544 KB Output is correct
30 Correct 1 ms 724 KB Output is correct
31 Correct 163 ms 125708 KB Output is correct
32 Correct 198 ms 150604 KB Output is correct
33 Correct 190 ms 150092 KB Output is correct
34 Correct 185 ms 145772 KB Output is correct
35 Correct 197 ms 150708 KB Output is correct
36 Correct 189 ms 150160 KB Output is correct
37 Correct 228 ms 150672 KB Output is correct
38 Correct 144 ms 125004 KB Output is correct
39 Correct 147 ms 125068 KB Output is correct