oj.uz

Submission #981965

# Submission time Handle Problem Language Result Execution time Memory
981965 2024-05-13T17:23:08 Z Amirreza_Fakhri Bitaro the Brave (JOI19_ho_t1) C++17
100 / 100
 101 ms 160080 KB 
// In the name of the God
#include <bits/stdc++.h>
#define ll long long
#define int long long
#define pb push_back
#define F first
#define S second
#define mp make_pair
#define pii pair <int, int>
#define smin(x, y) (x) = min((x), (y))
#define smax(x, y) (x) = max((x), (y))
#define all(x) (x).begin(), (x).end()
using namespace std;

// #pragma GCC optimize("O3,unroll-loops")
// #pragma GCC target("avx2")

const int inf = 1e9+7;
const int mod = 998244353;
const int maxn = 3e3+5;

mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());

int h, w, r[maxn][maxn], c[maxn][maxn];
string s[maxn];

int32_t main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin >> h >> w;
    for (int i = 0; i < h; i++) cin >> s[i];
    for (int i = 0; i < h; i++) {
        for (int j = w-2; j >= 0; j--) {
            r[i][j] = r[i][j+1]+(s[i][j+1] == 'O');
            // if (s[i][j+1] == 'o') cout << j << "FFF\n";
            // cout << s[i] << '\n';
        }
    }
    for (int i = h-2; i >= 0; i--) {
        for (int j = 0; j < w; j++) {
            c[i][j] = c[i+1][j]+(s[i+1][j] == 'I');
        }
    }
    int ans = 0;
    for (int i = 0; i < h; i++) {
        for (int j = 0; j < w; j++) {
            if (s[i][j] == 'J') ans += r[i][j]*c[i][j];
        }
    }
    cout << ans << '\n';
    // cout << r[0][0] << '\n';
    return 0;
}





/*
srand(time(0));
cout << (rand()%1900) + 1 << ' ' << (rand()%2)+5 << '\n';
*/

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 1 ms 604 KB Output is correct
5 Correct 1 ms 2972 KB Output is correct
6 Correct 1 ms 2908 KB Output is correct
7 Correct 1 ms 1372 KB Output is correct
8 Correct 1 ms 3164 KB Output is correct
9 Correct 1 ms 3160 KB Output is correct
10 Correct 1 ms 1372 KB Output is correct
11 Correct 1 ms 3164 KB Output is correct
12 Correct 1 ms 2908 KB Output is correct
13 Correct 1 ms 1368 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 1 ms 604 KB Output is correct
5 Correct 1 ms 2972 KB Output is correct
6 Correct 1 ms 2908 KB Output is correct
7 Correct 1 ms 1372 KB Output is correct
8 Correct 1 ms 3164 KB Output is correct
9 Correct 1 ms 3160 KB Output is correct
10 Correct 1 ms 1372 KB Output is correct
11 Correct 1 ms 3164 KB Output is correct
12 Correct 1 ms 2908 KB Output is correct
13 Correct 1 ms 1368 KB Output is correct
14 Correct 5 ms 14948 KB Output is correct
15 Correct 2 ms 10588 KB Output is correct
16 Correct 3 ms 7516 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 5 ms 15680 KB Output is correct
19 Correct 5 ms 15452 KB Output is correct
20 Correct 5 ms 15452 KB Output is correct
21 Correct 5 ms 15708 KB Output is correct
22 Correct 5 ms 15452 KB Output is correct
23 Correct 5 ms 15452 KB Output is correct
24 Correct 5 ms 15788 KB Output is correct
25 Correct 5 ms 15452 KB Output is correct
26 Correct 5 ms 15452 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 1 ms 604 KB Output is correct
5 Correct 1 ms 2972 KB Output is correct
6 Correct 1 ms 2908 KB Output is correct
7 Correct 1 ms 1372 KB Output is correct
8 Correct 1 ms 3164 KB Output is correct
9 Correct 1 ms 3160 KB Output is correct
10 Correct 1 ms 1372 KB Output is correct
11 Correct 1 ms 3164 KB Output is correct
12 Correct 1 ms 2908 KB Output is correct
13 Correct 1 ms 1368 KB Output is correct
14 Correct 5 ms 14948 KB Output is correct
15 Correct 2 ms 10588 KB Output is correct
16 Correct 3 ms 7516 KB Output is correct
17 Correct 1 ms 604 KB Output is correct
18 Correct 5 ms 15680 KB Output is correct
19 Correct 5 ms 15452 KB Output is correct
20 Correct 5 ms 15452 KB Output is correct
21 Correct 5 ms 15708 KB Output is correct
22 Correct 5 ms 15452 KB Output is correct
23 Correct 5 ms 15452 KB Output is correct
24 Correct 5 ms 15788 KB Output is correct
25 Correct 5 ms 15452 KB Output is correct
26 Correct 5 ms 15452 KB Output is correct
27 Correct 95 ms 158864 KB Output is correct
28 Correct 10 ms 63580 KB Output is correct
29 Correct 7 ms 13916 KB Output is correct
30 Correct 1 ms 860 KB Output is correct
31 Correct 72 ms 130744 KB Output is correct
32 Correct 86 ms 159828 KB Output is correct
33 Correct 76 ms 159708 KB Output is correct
34 Correct 84 ms 151740 KB Output is correct
35 Correct 75 ms 159844 KB Output is correct
36 Correct 73 ms 159568 KB Output is correct
37 Correct 101 ms 160080 KB Output is correct
38 Correct 58 ms 130304 KB Output is correct
39 Correct 56 ms 130116 KB Output is correct