oj.uz

Submission #330360

# Submission time Handle Problem Language Result Execution time Memory
330360 2020-11-24T23:37:41 Z fishy15 Bitaro the Brave (JOI19_ho_t1) C++14
100 / 100
 345 ms 89728 KB 
#include <iostream>
#include <iomanip>
#include <fstream>
#include <vector>
#include <array>
#include <algorithm>
#include <utility>
#include <map>
#include <queue>
#include <set>
#include <cmath>
#include <cstdio>
#include <cstring>

#define ll long long
#define ld long double
#define eps 1e-8
#define MOD 1000000007

#define INF 0x3f3f3f3f
#define INFLL 0x3f3f3f3f3f3f3f3f

// change if necessary
#define MAXN 3010

using namespace std;

int h, w;
string grid[MAXN];

ll ans;
int ocnt[MAXN][MAXN];
int icnt[MAXN][MAXN];

int main() {
    cin.tie(0)->sync_with_stdio(0);

    cin >> h >> w;
    for (int i = 0; i < h; i++) {
        cin >> grid[i];
    }

    for (int i = 0; i < h; i++) {
        for (int j = w - 1; j >= 0; j--) {
            ocnt[i][j] = ocnt[i][j + 1];
            if (grid[i][j] == 'O') ocnt[i][j]++;
        }
    }

    for (int j = 0; j < w; j++) {
        for (int i = h - 1; i >= 0; i--) {
            icnt[i][j] = icnt[i + 1][j];
            if (grid[i][j] == 'I') icnt[i][j]++;
        }
    }

    for (int i = 0; i < h; i++) {
        for (int j = 0; j < w; j++) {
            if (grid[i][j] == 'J') {
                ans += (ll) ocnt[i][j] * icnt[i][j];
            }
        }
    }
    
    cout << ans << '\n';

    return 0;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 2 ms 1388 KB Output is correct
6 Correct 1 ms 1260 KB Output is correct
7 Correct 1 ms 1260 KB Output is correct
8 Correct 1 ms 1388 KB Output is correct
9 Correct 1 ms 1260 KB Output is correct
10 Correct 1 ms 1260 KB Output is correct
11 Correct 1 ms 1388 KB Output is correct
12 Correct 1 ms 1260 KB Output is correct
13 Correct 2 ms 1260 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 2 ms 1388 KB Output is correct
6 Correct 1 ms 1260 KB Output is correct
7 Correct 1 ms 1260 KB Output is correct
8 Correct 1 ms 1388 KB Output is correct
9 Correct 1 ms 1260 KB Output is correct
10 Correct 1 ms 1260 KB Output is correct
11 Correct 1 ms 1388 KB Output is correct
12 Correct 1 ms 1260 KB Output is correct
13 Correct 2 ms 1260 KB Output is correct
14 Correct 8 ms 6304 KB Output is correct
15 Correct 3 ms 3820 KB Output is correct
16 Correct 4 ms 3820 KB Output is correct
17 Correct 1 ms 492 KB Output is correct
18 Correct 10 ms 6892 KB Output is correct
19 Correct 9 ms 6764 KB Output is correct
20 Correct 6 ms 6764 KB Output is correct
21 Correct 9 ms 6892 KB Output is correct
22 Correct 12 ms 6764 KB Output is correct
23 Correct 8 ms 6764 KB Output is correct
24 Correct 10 ms 6892 KB Output is correct
25 Correct 6 ms 6764 KB Output is correct
26 Correct 6 ms 6764 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 492 KB Output is correct
2 Correct 1 ms 492 KB Output is correct
3 Correct 1 ms 492 KB Output is correct
4 Correct 1 ms 492 KB Output is correct
5 Correct 2 ms 1388 KB Output is correct
6 Correct 1 ms 1260 KB Output is correct
7 Correct 1 ms 1260 KB Output is correct
8 Correct 1 ms 1388 KB Output is correct
9 Correct 1 ms 1260 KB Output is correct
10 Correct 1 ms 1260 KB Output is correct
11 Correct 1 ms 1388 KB Output is correct
12 Correct 1 ms 1260 KB Output is correct
13 Correct 2 ms 1260 KB Output is correct
14 Correct 8 ms 6304 KB Output is correct
15 Correct 3 ms 3820 KB Output is correct
16 Correct 4 ms 3820 KB Output is correct
17 Correct 1 ms 492 KB Output is correct
18 Correct 10 ms 6892 KB Output is correct
19 Correct 9 ms 6764 KB Output is correct
20 Correct 6 ms 6764 KB Output is correct
21 Correct 9 ms 6892 KB Output is correct
22 Correct 12 ms 6764 KB Output is correct
23 Correct 8 ms 6764 KB Output is correct
24 Correct 10 ms 6892 KB Output is correct
25 Correct 6 ms 6764 KB Output is correct
26 Correct 6 ms 6764 KB Output is correct
27 Correct 314 ms 88556 KB Output is correct
28 Correct 12 ms 19308 KB Output is correct
29 Correct 11 ms 7916 KB Output is correct
30 Correct 1 ms 748 KB Output is correct
31 Correct 232 ms 72044 KB Output is correct
32 Correct 282 ms 89728 KB Output is correct
33 Correct 286 ms 89324 KB Output is correct
34 Correct 268 ms 83564 KB Output is correct
35 Correct 288 ms 89580 KB Output is correct
36 Correct 276 ms 89580 KB Output is correct
37 Correct 345 ms 89580 KB Output is correct
38 Correct 195 ms 72036 KB Output is correct
39 Correct 187 ms 71788 KB Output is correct