oj.uz

Submission #916520

# Submission time Handle Problem Language Result Execution time Memory
916520 2024-01-26T03:47:27 Z viwlesxq Bitaro the Brave (JOI19_ho_t1) C++17
100 / 100
 280 ms 159944 KB 
#include <bits/stdc++.h>
using namespace std;
#define int long long
#define all(x) x.begin(), x.end()
#define size(x) (int)x.size()

template<class S, class T>
bool chmin(S &a, const T &b) {
    return a > b && (a = b) == b;
}
template<class S, class T>
bool chmax(S &a, const T &b) {
    return a < b && (a = b) == b;
}
const int inf = 1e9 + 7;
const int INF = 1e18 + 7;
const int mod = 1e9 + 7;

signed main() {
    cin.tie(nullptr)->sync_with_stdio(false);
    int n, m; cin >> n >> m;
    string s[n];
    for (int i = 0; i < n; ++i) cin >> s[i];
    int prefi[n][m], prefj[n][m];
    for (int i = 0; i < n; ++i) {
        prefi[i][0] = s[i][0] == 'O';
        for (int j = 1; j < m; ++j) {
            prefi[i][j] = prefi[i][j - 1] + (s[i][j] == 'O');
        }
    }
    for (int j = 0; j < m; ++j) {
        prefj[0][j] = s[0][j] == 'I';
        for (int i = 1; i < n; ++i) {
            prefj[i][j] = prefj[i - 1][j] + (s[i][j] == 'I');
        }
    }
    int res = 0;
    for (int i = 0; i < n; ++i) {
        for (int j = 0; j < m; ++j) {
            if (s[i][j] == 'J')
                res += (prefi[i][m - 1] - prefi[i][j]) * (prefj[n - 1][j] - prefj[i][j]);
        }
    }
    cout << res;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 604 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 348 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 604 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 3 ms 3420 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 2396 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 5 ms 4444 KB Output is correct
19 Correct 4 ms 4444 KB Output is correct
20 Correct 4 ms 4440 KB Output is correct
21 Correct 4 ms 4488 KB Output is correct
22 Correct 3 ms 4444 KB Output is correct
23 Correct 3 ms 4440 KB Output is correct
24 Correct 4 ms 4444 KB Output is correct
25 Correct 4 ms 4444 KB Output is correct
26 Correct 4 ms 4444 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 344 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 604 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 604 KB Output is correct
8 Correct 0 ms 604 KB Output is correct
9 Correct 1 ms 348 KB Output is correct
10 Correct 0 ms 604 KB Output is correct
11 Correct 1 ms 604 KB Output is correct
12 Correct 1 ms 344 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 3 ms 3420 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 3 ms 2396 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 5 ms 4444 KB Output is correct
19 Correct 4 ms 4444 KB Output is correct
20 Correct 4 ms 4440 KB Output is correct
21 Correct 4 ms 4488 KB Output is correct
22 Correct 3 ms 4444 KB Output is correct
23 Correct 3 ms 4440 KB Output is correct
24 Correct 4 ms 4444 KB Output is correct
25 Correct 4 ms 4444 KB Output is correct
26 Correct 4 ms 4444 KB Output is correct
27 Correct 250 ms 142700 KB Output is correct
28 Correct 1 ms 860 KB Output is correct
29 Correct 10 ms 11704 KB Output is correct
30 Correct 1 ms 1108 KB Output is correct
31 Correct 184 ms 111024 KB Output is correct
32 Correct 248 ms 158844 KB Output is correct
33 Correct 255 ms 159312 KB Output is correct
34 Correct 206 ms 128852 KB Output is correct
35 Correct 245 ms 158836 KB Output is correct
36 Correct 233 ms 159168 KB Output is correct
37 Correct 280 ms 159944 KB Output is correct
38 Correct 158 ms 110240 KB Output is correct
39 Correct 159 ms 110420 KB Output is correct