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Submission #679327

# Submission time Handle Problem Language Result Execution time Memory
679327 2023-01-08T03:53:39 Z kusssso Bitaro the Brave (JOI19_ho_t1) C++17
100 / 100
 362 ms 88484 KB 
#include<bits/stdc++.h>
using namespace std;
using ll = long long;
const int N = 3005;

int n, m;
char a[N][N];
int d[2][N][N];

signed main() {
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    
    cin >> n >> m;
    for (int i = 1; i <= n; i++) for (int j = 1; j <= m; j++) {
        cin >> a[i][j];
        if (a[i][j] == 'O') d[0][i][j]++;
        if (a[i][j] == 'I') d[1][i][j]++;
    }
    for (int i = 1; i <= n; i++) for (int j = m; j >= 1; j--) d[0][i][j] += d[0][i][j + 1];
    for (int j = 1; j <= m; j++) for (int i = n; i >= 1; i--) d[1][i][j] += d[1][i + 1][j];
    ll ans = 0;
    for (int i = 1; i <= n; i++) for (int j = 1; j <= m; j++) {
        if (a[i][j] == 'J')
            ans += 1LL * d[0][i][j] * d[1][i][j];
    }
    cout << ans;
    
    return 0;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 360 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 1492 KB Output is correct
6 Correct 1 ms 1492 KB Output is correct
7 Correct 1 ms 1364 KB Output is correct
8 Correct 1 ms 1492 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 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 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 360 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 1492 KB Output is correct
6 Correct 1 ms 1492 KB Output is correct
7 Correct 1 ms 1364 KB Output is correct
8 Correct 1 ms 1492 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 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 10 ms 7508 KB Output is correct
15 Correct 3 ms 4944 KB Output is correct
16 Correct 5 ms 4308 KB Output is correct
17 Correct 1 ms 456 KB Output is correct
18 Correct 11 ms 7940 KB Output is correct
19 Correct 9 ms 7892 KB Output is correct
20 Correct 10 ms 7764 KB Output is correct
21 Correct 14 ms 8024 KB Output is correct
22 Correct 9 ms 7892 KB Output is correct
23 Correct 8 ms 7764 KB Output is correct
24 Correct 14 ms 8020 KB Output is correct
25 Correct 9 ms 7940 KB Output is correct
26 Correct 8 ms 7764 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 340 KB Output is correct
2 Correct 0 ms 340 KB Output is correct
3 Correct 0 ms 360 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 1 ms 1492 KB Output is correct
6 Correct 1 ms 1492 KB Output is correct
7 Correct 1 ms 1364 KB Output is correct
8 Correct 1 ms 1492 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 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 10 ms 7508 KB Output is correct
15 Correct 3 ms 4944 KB Output is correct
16 Correct 5 ms 4308 KB Output is correct
17 Correct 1 ms 456 KB Output is correct
18 Correct 11 ms 7940 KB Output is correct
19 Correct 9 ms 7892 KB Output is correct
20 Correct 10 ms 7764 KB Output is correct
21 Correct 14 ms 8024 KB Output is correct
22 Correct 9 ms 7892 KB Output is correct
23 Correct 8 ms 7764 KB Output is correct
24 Correct 14 ms 8020 KB Output is correct
25 Correct 9 ms 7940 KB Output is correct
26 Correct 8 ms 7764 KB Output is correct
27 Correct 338 ms 88016 KB Output is correct
28 Correct 12 ms 25940 KB Output is correct
29 Correct 15 ms 7784 KB Output is correct
30 Correct 1 ms 596 KB Output is correct
31 Correct 247 ms 72592 KB Output is correct
32 Correct 307 ms 88484 KB Output is correct
33 Correct 234 ms 88188 KB Output is correct
34 Correct 293 ms 84216 KB Output is correct
35 Correct 294 ms 88352 KB Output is correct
36 Correct 244 ms 88148 KB Output is correct
37 Correct 362 ms 88484 KB Output is correct
38 Correct 188 ms 72436 KB Output is correct
39 Correct 170 ms 72300 KB Output is correct