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답안 #140797

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
140797 2019-08-05T08:36:07 Z meatrow Bitaro the Brave (JOI19_ho_t1) C++17
100 / 100
 485 ms 88652 KB 
//#pragma GCC optimize("O3")
//#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,tune=native")
//#pragma GCC optimize ("unroll-loops")
#include <bits/stdc++.h>

using namespace std;

using ll = long long;
using ld = long double;

const int N = 3005;

char a[N][N];
int row[N][N];
int col[N][N];

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
    int n, m;
    cin >> n >> m;
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= m; j++) {
            cin >> a[i][j];
        }
    }
    for (int i = 1; i <= n; i++) {
        for (int j = m; j >= 1; j--) {
            row[i][j] = row[i][j + 1] + (a[i][j] == 'O');
        }
    }
    for (int j = 1; j <= m; j++) {
        for (int i = n; i >= 1; i--) {
            col[i][j] = col[i + 1][j] + (a[i][j] == 'I');
        }
    }
    ll ans = 0;
    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= m; j++) {
            if (a[i][j] == 'J') {
                ans += ll(row[i][j + 1]) * col[i + 1][j];
            }
        }
    }
    cout << ans;
    return 0;
}

Subtask #1
20.0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 3 ms 1656 KB Output is correct
6 Correct 3 ms 1528 KB Output is correct
7 Correct 3 ms 1400 KB Output is correct
8 Correct 3 ms 1528 KB Output is correct
9 Correct 3 ms 1528 KB Output is correct
10 Correct 3 ms 1400 KB Output is correct
11 Correct 3 ms 1528 KB Output is correct
12 Correct 3 ms 1528 KB Output is correct
13 Correct 4 ms 1400 KB Output is correct

Subtask #2
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 3 ms 1656 KB Output is correct
6 Correct 3 ms 1528 KB Output is correct
7 Correct 3 ms 1400 KB Output is correct
8 Correct 3 ms 1528 KB Output is correct
9 Correct 3 ms 1528 KB Output is correct
10 Correct 3 ms 1400 KB Output is correct
11 Correct 3 ms 1528 KB Output is correct
12 Correct 3 ms 1528 KB Output is correct
13 Correct 4 ms 1400 KB Output is correct
14 Correct 13 ms 7592 KB Output is correct
15 Correct 6 ms 4984 KB Output is correct
16 Correct 9 ms 4128 KB Output is correct
17 Correct 2 ms 504 KB Output is correct
18 Correct 18 ms 8056 KB Output is correct
19 Correct 16 ms 7984 KB Output is correct
20 Correct 17 ms 7928 KB Output is correct
21 Correct 18 ms 8004 KB Output is correct
22 Correct 16 ms 7928 KB Output is correct
23 Correct 29 ms 7928 KB Output is correct
24 Correct 17 ms 8056 KB Output is correct
25 Correct 16 ms 7928 KB Output is correct
26 Correct 14 ms 7804 KB Output is correct

Subtask #3
50.0 / 50.0

# 결과 실행 시간 메모리 Grader output
1 Correct 2 ms 376 KB Output is correct
2 Correct 2 ms 376 KB Output is correct
3 Correct 2 ms 376 KB Output is correct
4 Correct 2 ms 376 KB Output is correct
5 Correct 3 ms 1656 KB Output is correct
6 Correct 3 ms 1528 KB Output is correct
7 Correct 3 ms 1400 KB Output is correct
8 Correct 3 ms 1528 KB Output is correct
9 Correct 3 ms 1528 KB Output is correct
10 Correct 3 ms 1400 KB Output is correct
11 Correct 3 ms 1528 KB Output is correct
12 Correct 3 ms 1528 KB Output is correct
13 Correct 4 ms 1400 KB Output is correct
14 Correct 13 ms 7592 KB Output is correct
15 Correct 6 ms 4984 KB Output is correct
16 Correct 9 ms 4128 KB Output is correct
17 Correct 2 ms 504 KB Output is correct
18 Correct 18 ms 8056 KB Output is correct
19 Correct 16 ms 7984 KB Output is correct
20 Correct 17 ms 7928 KB Output is correct
21 Correct 18 ms 8004 KB Output is correct
22 Correct 16 ms 7928 KB Output is correct
23 Correct 29 ms 7928 KB Output is correct
24 Correct 17 ms 8056 KB Output is correct
25 Correct 16 ms 7928 KB Output is correct
26 Correct 14 ms 7804 KB Output is correct
27 Correct 461 ms 88024 KB Output is correct
28 Correct 27 ms 26104 KB Output is correct
29 Correct 25 ms 7800 KB Output is correct
30 Correct 3 ms 632 KB Output is correct
31 Correct 340 ms 72700 KB Output is correct
32 Correct 452 ms 88568 KB Output is correct
33 Correct 453 ms 88472 KB Output is correct
34 Correct 400 ms 84444 KB Output is correct
35 Correct 460 ms 88608 KB Output is correct
36 Correct 444 ms 88312 KB Output is correct
37 Correct 485 ms 88652 KB Output is correct
38 Correct 313 ms 72568 KB Output is correct
39 Correct 309 ms 72532 KB Output is correct