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Submission #1037340

# Submission time Handle Problem Language Result Execution time Memory
1037340 2024-07-28T14:19:18 Z vanea Bitaro the Brave (JOI19_ho_t1) C++14
100 / 100
 86 ms 89684 KB 
#include <bits/stdc++.h>
using namespace std;
using ll = long long;

int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int h, w;
    cin >> h >> w;
    vector<string> v(h+1);
    vector<vector<int>> prefI(h+1, vector<int>(w+1)), prefO(h+1, vector<int>(w+1));
    for(int i = 1; i <= h; i++) {
        cin >> v[i];
    }
    for(int i = 1; i <= h; i++) {
        for(int j = 1; j <= w; j++) {
            prefO[i][j] = prefO[i][j-1]+(v[i][j-1] == 'O');
            prefI[i][j] = prefI[i-1][j]+(v[i][j-1] == 'I');
        }
    }
    ll ans = 0;
    for(int i = 1; i <= h; i++) {
        for(int j = 1; j <= w; j++) {
            if(v[i][j-1] == 'J') {
                ll curr = prefO[i][w]-prefO[i][j];
                curr *= prefI[h][j]-prefI[i][j];
                ans += curr;
            }
        }
    }
    cout << ans;
    return 0;
}

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 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 344 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 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 2 ms 2396 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 1628 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 3 ms 2908 KB Output is correct
19 Correct 2 ms 2652 KB Output is correct
20 Correct 2 ms 2908 KB Output is correct
21 Correct 3 ms 2904 KB Output is correct
22 Correct 2 ms 2652 KB Output is correct
23 Correct 2 ms 2792 KB Output is correct
24 Correct 3 ms 2836 KB Output is correct
25 Correct 2 ms 2652 KB Output is correct
26 Correct 2 ms 2816 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 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 344 KB Output is correct
14 Correct 2 ms 2396 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 1 ms 1628 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 3 ms 2908 KB Output is correct
19 Correct 2 ms 2652 KB Output is correct
20 Correct 2 ms 2908 KB Output is correct
21 Correct 3 ms 2904 KB Output is correct
22 Correct 2 ms 2652 KB Output is correct
23 Correct 2 ms 2792 KB Output is correct
24 Correct 3 ms 2836 KB Output is correct
25 Correct 2 ms 2652 KB Output is correct
26 Correct 2 ms 2816 KB Output is correct
27 Correct 74 ms 84568 KB Output is correct
28 Correct 1 ms 856 KB Output is correct
29 Correct 4 ms 6748 KB Output is correct
30 Correct 0 ms 696 KB Output is correct
31 Correct 54 ms 62176 KB Output is correct
32 Correct 57 ms 89020 KB Output is correct
33 Correct 56 ms 89452 KB Output is correct
34 Correct 62 ms 72280 KB Output is correct
35 Correct 56 ms 89076 KB Output is correct
36 Correct 54 ms 89424 KB Output is correct
37 Correct 86 ms 89684 KB Output is correct
38 Correct 39 ms 61780 KB Output is correct
39 Correct 39 ms 62036 KB Output is correct