oj.uz

Submission #874569

# Submission time Handle Problem Language Result Execution time Memory
874569 2023-11-17T09:59:32 Z atom Bitaro the Brave (JOI19_ho_t1) C++17
100 / 100
 177 ms 88896 KB 
#include "bits/stdc++.h"
// @JASPER'S BOILERPLATE
using namespace std;
using ll = long long;
#define FOR(i, a, b) for(int i = a; i <= b; i++)
#define FORD(i, a, b) for(int i = a; i >= b; i--)
#define REP(i, b) for(int i = 0; i < b; i++)
#define PER(i, b) for(int i = b - 1; i >= 0; i--)
#define fi first
#define se second
#ifdef JASPER
#include "debug.h"
#else
#define debug(...) 166
#endif

using pii = pair < int, int >;
const int INF = 1e9;
const int MOD = 1e9 + 7;
const int N = 3e3 + 5;

int n, m;
char a[N][N];
int dpO[N][N], dpI[N][N];

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

    for (int j = m; j >= 1; --j) {
        for (int i = 1; i <= n; ++i) {
            dpO[i][j] = (a[i][j] == 'O');
            dpO[i][j] += dpO[i][j + 1];
        }
    }

    for (int i = n; i >= 1; --i) {
        for (int j = 1; j <= m; ++j) {
            dpI[i][j] = (a[i][j] == 'I');
            dpI[i][j] += dpI[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 * dpO[i][j] * dpI[i][j];
    cout << ans << "\n";
}

signed main() {
    cin.tie(0) -> sync_with_stdio(0);
    
    int Test = 1;
    //cin >> Test;
    for (int test = 1; test <= Test; test++){

        run_case();
    }
}

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 1 ms 6492 KB Output is correct
10 Correct 1 ms 6492 KB Output is correct
11 Correct 1 ms 6492 KB Output is correct
12 Correct 1 ms 6492 KB Output is correct
13 Correct 1 ms 6492 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 1 ms 6492 KB Output is correct
10 Correct 1 ms 6492 KB Output is correct
11 Correct 1 ms 6492 KB Output is correct
12 Correct 1 ms 6492 KB Output is correct
13 Correct 1 ms 6492 KB Output is correct
14 Correct 5 ms 18780 KB Output is correct
15 Correct 2 ms 14684 KB Output is correct
16 Correct 3 ms 10840 KB Output is correct
17 Correct 1 ms 4440 KB Output is correct
18 Correct 6 ms 19036 KB Output is correct
19 Correct 6 ms 19036 KB Output is correct
20 Correct 5 ms 17240 KB Output is correct
21 Correct 6 ms 19036 KB Output is correct
22 Correct 5 ms 19016 KB Output is correct
23 Correct 5 ms 16988 KB Output is correct
24 Correct 6 ms 19048 KB Output is correct
25 Correct 5 ms 19032 KB Output is correct
26 Correct 5 ms 16988 KB Output is correct

Subtask #3
50.0 / 50.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 4444 KB Output is correct
2 Correct 1 ms 4444 KB Output is correct
3 Correct 1 ms 4444 KB Output is correct
4 Correct 1 ms 4444 KB Output is correct
5 Correct 1 ms 6492 KB Output is correct
6 Correct 1 ms 6492 KB Output is correct
7 Correct 1 ms 6492 KB Output is correct
8 Correct 1 ms 6492 KB Output is correct
9 Correct 1 ms 6492 KB Output is correct
10 Correct 1 ms 6492 KB Output is correct
11 Correct 1 ms 6492 KB Output is correct
12 Correct 1 ms 6492 KB Output is correct
13 Correct 1 ms 6492 KB Output is correct
14 Correct 5 ms 18780 KB Output is correct
15 Correct 2 ms 14684 KB Output is correct
16 Correct 3 ms 10840 KB Output is correct
17 Correct 1 ms 4440 KB Output is correct
18 Correct 6 ms 19036 KB Output is correct
19 Correct 6 ms 19036 KB Output is correct
20 Correct 5 ms 17240 KB Output is correct
21 Correct 6 ms 19036 KB Output is correct
22 Correct 5 ms 19016 KB Output is correct
23 Correct 5 ms 16988 KB Output is correct
24 Correct 6 ms 19048 KB Output is correct
25 Correct 5 ms 19032 KB Output is correct
26 Correct 5 ms 16988 KB Output is correct
27 Correct 177 ms 88228 KB Output is correct
28 Correct 9 ms 66136 KB Output is correct
29 Correct 10 ms 11352 KB Output is correct
30 Correct 1 ms 4696 KB Output is correct
31 Correct 121 ms 76280 KB Output is correct
32 Correct 161 ms 88520 KB Output is correct
33 Correct 168 ms 88460 KB Output is correct
34 Correct 143 ms 86612 KB Output is correct
35 Correct 155 ms 88524 KB Output is correct
36 Correct 154 ms 88896 KB Output is correct
37 Correct 177 ms 88776 KB Output is correct
38 Correct 102 ms 76372 KB Output is correct
39 Correct 100 ms 76260 KB Output is correct