oj.uz

Submission #442656

# Submission time Handle Problem Language Result Execution time Memory
442656 2021-07-08T13:06:44 Z arujbansal Dango Maker (JOI18_dango_maker) C++17
100 / 100
 305 ms 123744 KB 
#include <iostream>
#include <algorithm>
#include <vector>
#include <map>
#include <set>
#include <array>
#include <stack>
#include <queue>
#include <random>
#include <numeric>
#include <functional>
#include <chrono>
#include <utility>
#include <iomanip>
#include <assert.h>

using namespace std;

void dbg_out() { cerr << endl; }
template<typename Head, typename... Tail>
void dbg_out(Head H, Tail... T) { cerr << ' ' << H; dbg_out(T...); }
#define dbg(...) cerr << "(" << #__VA_ARGS__ << "):", dbg_out(__VA_ARGS__)

#define rng_init mt19937 rng(chrono::steady_clock::now().time_since_epoch().count())
#define rng_seed(x) mt19937 rng(x)
#define all(x) (x).begin(), (x).end()
#define sz(x) (int) (x).size()
// #define int long long

const int MXN = 3e3 + 5, INF = 1e9 + 5;
int N, M;
char grid[MXN][MXN];
int dp[MXN][MXN][3];

bool skewer_down(int i, int j) {
    return (grid[i - 1][j] == 'R' && grid[i][j] == 'G' && grid[i + 1][j] == 'W');
}

bool skewer_right(int i, int j) {
    return (grid[i][j - 1] == 'R' && grid[i][j] == 'G' && grid[i][j + 1] == 'W');
}

void solve() {
    cin >> N >> M;
    for (int i = 1; i <= N; i++) 
        for (int j = 1; j <= M; j++)
            cin >> grid[i][j];

    for (int i = 1; i <= N; i++) {
        for (int j = 1; j <= M; j++) {
            for (int k = 0; k < 3; k++)
                dp[i][j][0] = max(dp[i][j][0], dp[i - 1][j + 1][k]);

            if (skewer_down(i, j))
                dp[i][j][1] = max(dp[i - 1][j + 1][0], dp[i - 1][j + 1][1]) + 1;

            if (skewer_right(i, j))
                dp[i][j][2] = max(dp[i - 1][j + 1][0], dp[i - 1][j + 1][2]) + 1;
        }
    }

    int ans = 0;

    for (int i = 1; i <= N; i++)
        ans += max({dp[i][1][0], dp[i][1][1], dp[i][1][2]});

    for (int j = 2; j <= M; j++)
        ans += max({dp[N][j][0], dp[N][j][1], dp[N][j][2]});

    cout << ans;
}

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);

    int TC = 1;
    // cin >> TC;
    while (TC--) solve();
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 0 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 0 ms 332 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 0 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 0 ms 332 KB Output is correct
35 Correct 0 ms 332 KB Output is correct
36 Correct 0 ms 332 KB Output is correct
37 Correct 0 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 0 ms 332 KB Output is correct
42 Correct 0 ms 332 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 1 ms 332 KB Output is correct
45 Correct 1 ms 332 KB Output is correct
46 Correct 0 ms 332 KB Output is correct
47 Correct 1 ms 332 KB Output is correct
48 Correct 0 ms 332 KB Output is correct
49 Correct 1 ms 332 KB Output is correct
50 Correct 1 ms 332 KB Output is correct
51 Correct 0 ms 332 KB Output is correct
52 Correct 1 ms 332 KB Output is correct
53 Correct 1 ms 332 KB Output is correct

Subtask #3
67.0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 1 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 1 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 332 KB Output is correct
10 Correct 0 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 1 ms 332 KB Output is correct
14 Correct 1 ms 332 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 1 ms 332 KB Output is correct
18 Correct 1 ms 332 KB Output is correct
19 Correct 0 ms 332 KB Output is correct
20 Correct 1 ms 332 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 0 ms 332 KB Output is correct
23 Correct 1 ms 332 KB Output is correct
24 Correct 1 ms 332 KB Output is correct
25 Correct 0 ms 332 KB Output is correct
26 Correct 1 ms 204 KB Output is correct
27 Correct 1 ms 332 KB Output is correct
28 Correct 1 ms 332 KB Output is correct
29 Correct 1 ms 332 KB Output is correct
30 Correct 1 ms 332 KB Output is correct
31 Correct 1 ms 332 KB Output is correct
32 Correct 0 ms 332 KB Output is correct
33 Correct 1 ms 332 KB Output is correct
34 Correct 0 ms 332 KB Output is correct
35 Correct 0 ms 332 KB Output is correct
36 Correct 0 ms 332 KB Output is correct
37 Correct 0 ms 332 KB Output is correct
38 Correct 1 ms 332 KB Output is correct
39 Correct 1 ms 332 KB Output is correct
40 Correct 1 ms 332 KB Output is correct
41 Correct 0 ms 332 KB Output is correct
42 Correct 0 ms 332 KB Output is correct
43 Correct 1 ms 332 KB Output is correct
44 Correct 1 ms 332 KB Output is correct
45 Correct 1 ms 332 KB Output is correct
46 Correct 0 ms 332 KB Output is correct
47 Correct 1 ms 332 KB Output is correct
48 Correct 0 ms 332 KB Output is correct
49 Correct 1 ms 332 KB Output is correct
50 Correct 1 ms 332 KB Output is correct
51 Correct 0 ms 332 KB Output is correct
52 Correct 1 ms 332 KB Output is correct
53 Correct 1 ms 332 KB Output is correct
54 Correct 1 ms 332 KB Output is correct
55 Correct 11 ms 21324 KB Output is correct
56 Correct 1 ms 460 KB Output is correct
57 Correct 9 ms 14612 KB Output is correct
58 Correct 40 ms 19932 KB Output is correct
59 Correct 302 ms 123736 KB Output is correct
60 Correct 301 ms 123540 KB Output is correct
61 Correct 305 ms 123536 KB Output is correct
62 Correct 1 ms 332 KB Output is correct
63 Correct 300 ms 123384 KB Output is correct
64 Correct 223 ms 123716 KB Output is correct
65 Correct 220 ms 123604 KB Output is correct
66 Correct 223 ms 123744 KB Output is correct
67 Correct 223 ms 123608 KB Output is correct
68 Correct 223 ms 123576 KB Output is correct
69 Correct 227 ms 123540 KB Output is correct
70 Correct 28 ms 19920 KB Output is correct
71 Correct 30 ms 19916 KB Output is correct
72 Correct 27 ms 19916 KB Output is correct
73 Correct 28 ms 20012 KB Output is correct
74 Correct 28 ms 19912 KB Output is correct
75 Correct 29 ms 19948 KB Output is correct
76 Correct 28 ms 20008 KB Output is correct
77 Correct 31 ms 19888 KB Output is correct
78 Correct 29 ms 19908 KB Output is correct
79 Correct 28 ms 19952 KB Output is correct
80 Correct 28 ms 19916 KB Output is correct
81 Correct 28 ms 19928 KB Output is correct
82 Correct 30 ms 20004 KB Output is correct
83 Correct 29 ms 19908 KB Output is correct
84 Correct 29 ms 19964 KB Output is correct
85 Correct 29 ms 19880 KB Output is correct
86 Correct 28 ms 19908 KB Output is correct
87 Correct 32 ms 20112 KB Output is correct
88 Correct 28 ms 19916 KB Output is correct
89 Correct 29 ms 19908 KB Output is correct
90 Correct 29 ms 19988 KB Output is correct