oj.uz

Submission #484150

# Submission time Handle Problem Language Result Execution time Memory
484150 2021-11-02T08:13:21 Z dxz05 Bitaro the Brave (JOI19_ho_t1) C++14
100 / 100
 189 ms 92480 KB 
#pragma GCC optimize("Ofast,O2,O3,unroll-loops")
#pragma GCC target("avx2")

#include <bits/stdc++.h>

using namespace std;

void debug_out() { cerr << endl; }

template<typename Head, typename... Tail>
void debug_out(Head H, Tail... T) {
    cerr << "[" << H << "]";
    debug_out(T...);
}

#ifdef dddxxz
#define debug(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)
#else
#define debug(...) 42
#endif

#define SZ(s) ((int)s.size())
#define all(x) (x).begin(), (x).end()
#define lla(x) (x).rbegin(), (x).rend()

clock_t startTime;

double getCurrentTime() {
    return (double) (clock() - startTime) / CLOCKS_PER_SEC;
}

#define MP make_pair

typedef long long ll;
mt19937 rng(chrono::high_resolution_clock::now().time_since_epoch().count());
const double eps = 0.000001;
const int MOD = 1e9 + 7;
const int INF = 1000000101;
const long long LLINF = 1223372000000000555;
const int N = 1e6 + 3e2;
const int M = 3222;

char a[M][M];

int O[M][M], I[M][M];
void solve(int TC) {
    int n, m;
    cin >> n >> m;

    for (int i = 1; i <= n; i++) {
        for (int j = 1; j <= m; j++) {
            cin >> a[i][j];
        }
    }

    ll ans = 0;
    for (int i = n; i >= 1; i--) {
        for (int j = m; j >= 1; j--){
            O[i][j] = O[i][j + 1] + (a[i][j] == 'O');
            I[i][j] = I[i + 1][j] + (a[i][j] == 'I');

            if (a[i][j] == 'J') ans += 1ll * I[i + 1][j] * O[i][j + 1];

        }
    }

    cout << ans;

}

int main() {
    startTime = clock();
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

#ifdef dddxxz
    freopen("input.txt", "r", stdin);
    freopen("output.txt", "w", stdout);
#endif

    int TC = 1;
//    cin >> TC;

    for (int test = 1; test <= TC; test++) {
        //debug(test);
        //cout << "Case #" << test << ": ";
        solve(test);
    }

    cerr << endl << "Time: " << int(getCurrentTime() * 1000) << " ms" << endl;

    return 0;
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 1484 KB Output is correct
6 Correct 1 ms 1484 KB Output is correct
7 Correct 1 ms 1356 KB Output is correct
8 Correct 1 ms 1492 KB Output is correct
9 Correct 1 ms 1484 KB Output is correct
10 Correct 1 ms 1356 KB Output is correct
11 Correct 1 ms 1484 KB Output is correct
12 Correct 1 ms 1484 KB Output is correct
13 Correct 1 ms 1356 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 1484 KB Output is correct
6 Correct 1 ms 1484 KB Output is correct
7 Correct 1 ms 1356 KB Output is correct
8 Correct 1 ms 1492 KB Output is correct
9 Correct 1 ms 1484 KB Output is correct
10 Correct 1 ms 1356 KB Output is correct
11 Correct 1 ms 1484 KB Output is correct
12 Correct 1 ms 1484 KB Output is correct
13 Correct 1 ms 1356 KB Output is correct
14 Correct 7 ms 7592 KB Output is correct
15 Correct 3 ms 5068 KB Output is correct
16 Correct 4 ms 4300 KB Output is correct
17 Correct 1 ms 400 KB Output is correct
18 Correct 7 ms 8088 KB Output is correct
19 Correct 7 ms 8012 KB Output is correct
20 Correct 8 ms 7896 KB Output is correct
21 Correct 8 ms 8144 KB Output is correct
22 Correct 7 ms 8012 KB Output is correct
23 Correct 7 ms 7892 KB Output is correct
24 Correct 9 ms 8068 KB Output is correct
25 Correct 9 ms 8012 KB Output is correct
26 Correct 7 ms 7884 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 1 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 1 ms 1484 KB Output is correct
6 Correct 1 ms 1484 KB Output is correct
7 Correct 1 ms 1356 KB Output is correct
8 Correct 1 ms 1492 KB Output is correct
9 Correct 1 ms 1484 KB Output is correct
10 Correct 1 ms 1356 KB Output is correct
11 Correct 1 ms 1484 KB Output is correct
12 Correct 1 ms 1484 KB Output is correct
13 Correct 1 ms 1356 KB Output is correct
14 Correct 7 ms 7592 KB Output is correct
15 Correct 3 ms 5068 KB Output is correct
16 Correct 4 ms 4300 KB Output is correct
17 Correct 1 ms 400 KB Output is correct
18 Correct 7 ms 8088 KB Output is correct
19 Correct 7 ms 8012 KB Output is correct
20 Correct 8 ms 7896 KB Output is correct
21 Correct 8 ms 8144 KB Output is correct
22 Correct 7 ms 8012 KB Output is correct
23 Correct 7 ms 7892 KB Output is correct
24 Correct 9 ms 8068 KB Output is correct
25 Correct 9 ms 8012 KB Output is correct
26 Correct 7 ms 7884 KB Output is correct
27 Correct 161 ms 92396 KB Output is correct
28 Correct 13 ms 26440 KB Output is correct
29 Correct 12 ms 8324 KB Output is correct
30 Correct 1 ms 588 KB Output is correct
31 Correct 125 ms 77308 KB Output is correct
32 Correct 189 ms 92368 KB Output is correct
33 Correct 154 ms 92100 KB Output is correct
34 Correct 138 ms 89488 KB Output is correct
35 Correct 160 ms 92480 KB Output is correct
36 Correct 151 ms 92096 KB Output is correct
37 Correct 171 ms 92400 KB Output is correct
38 Correct 119 ms 77224 KB Output is correct
39 Correct 127 ms 77056 KB Output is correct