oj.uz

Submission #927199

# Submission time Handle Problem Language Result Execution time Memory
927199 2024-02-14T12:01:23 Z Gromp15 Dango Maker (JOI18_dango_maker) C++17
100 / 100
 909 ms 20732 KB 
#include <bits/stdc++.h>
#define ll long long
#define ar array
#define db double
#define all(x) x.begin(), x.end()
#define sz(x) (int)x.size()
using namespace std;
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
#define rint(l, r) uniform_int_distribution<int>(l, r)(rng)
template<typename T> bool ckmin(T &a, const T &b) { return a > b ? a = b, 1 : 0; }
template<typename T> bool ckmax(T &a, const T &b) { return a < b ? a = b, 1 : 0; }
void test_case() {
	int n, m;
	cin >> n >> m;
	vector<string> a(n);
	for (auto &x : a) cin >> x;
	vector<vector<bool>> vis(n, vector<bool>(m));
	const int dx[][2] = {{1, 2}, {-1, 1}, {-1, -2}};
	const string match = "RGW";
	auto in = [&](int x, int y) {
		return x>=0 && y>=0 && x<n && y<m;
	};
	auto check = [&](int x, int y, queue<ar<int, 2>> &v) {
		int idx = a[x][y] == 'R' ? 0 : a[x][y] == 'G' ? 1 : 2;
		bool ok = 1;
		for (int d = 0; d < 2; d++) {
			int nx = x + dx[idx][d];
			if (!in(nx, y) || a[nx][y] != match[idx + dx[idx][d]]) {
				ok = 0;
				break;
			}
		}
		if (ok) {
			if (!vis[x][y]) v.push({x, y}), vis[x][y] = 1;
			for (int d = 0; d < 2; d++) { 
				int nx = x + dx[idx][d];
				if (!vis[nx][y]) {
					vis[nx][y] = 1;
					v.push({nx, y});
				}
			}
		}
		bool ok2 = 1;
		for (int d = 0; d < 2; d++) {
			int ny = y + dx[idx][d];
			if (!in(x, ny) || a[x][ny] != match[idx + dx[idx][d]]) {
				ok2 = 0;
				break;
			}
		}
		if (ok2) {
			if (!vis[x][y]) v.push({x, y}), vis[x][y] = 1;
			for (int d = 0; d < 2; d++) { 
				int ny = y + dx[idx][d];
				if (!vis[x][ny]) {
					v.push({x, ny});
					vis[x][ny] = 1;
				}
			}
		}
	};
	int ans = 0;
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < m; j++) if (!vis[i][j]) {
			queue<ar<int, 2>> q;
			check(i, j, q);
			vector<ar<int, 2>> cur;
			while (q.size()) {
				auto [x, y] = q.front();
				cur.push_back(q.front());
				q.pop();
				check(x, y, q);
			}
			auto good = [&](int idx) {
				auto [x, y] = cur[idx];
				return x+2 < n && a[x][y] == 'R' && a[x+1][y] == 'G' && a[x+2][y] == 'W';
			};
			if (cur.size()) {
				sort(all(cur));
				vector<int> dp(8);
				int L = -1, R = -1;
				for (int k = 0; k < sz(cur); k++) {
					int r = k;
					while (r+1 < sz(cur) && cur[r+1][0] == cur[r][0]) r++;
					int curl = cur[k][1], curr = cur[r][1];
					if (L == -1) {
						if (r-k+1 == 3) dp[0] = 1;
						if (good(k)) dp[1] = 1;
					}
					else {
						vector<int> dp2(8);
						for (int mask = 0; mask < 8; mask++) {
							int nw = 0;
							for (int z = L; z <= R; z++) {
								int idx = z - L;
								if ((mask >> idx & 1) && (curl <= z && z <= curr)) {
									nw |= 1 << (z - curl);
								}
							}
							ckmax(dp2[nw], dp[mask]);
							if (!(nw & 1) && good(k)) {
								ckmax(dp2[nw | 1], dp[mask] + 1);
							}
							if (!nw && r-k+1 == 3) ckmax(dp2[nw], dp[mask] + 1);
						}
						swap(dp, dp2);
					}
					//for (int i = 0; i < 8; i++) cout << dp[i] << " \n"[i==7];
					assert(r-k+1 <= 3);
					L = curl, R = curr;
					k = r;
				}
				/*
				cout << "--------\n";
				for (auto [x, y] : cur) cout << x << " " << y << '\n';
				cout << *max_element(all(dp)) << "\n\n";
				*/
				ans += *max_element(all(dp));
			}
		}
	}
	cout << ans << '\n';



}
int main() {
    cin.tie(0)->sync_with_stdio(0);
    int t = 1;
//    cin >> t;
    while (t--) test_case();
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 344 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 344 KB Output is correct
35 Correct 0 ms 600 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 1 ms 348 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 1 ms 348 KB Output is correct
50 Correct 0 ms 344 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct

Subtask #3
67.0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 344 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 348 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 344 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 1 ms 348 KB Output is correct
14 Correct 0 ms 344 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 344 KB Output is correct
17 Correct 0 ms 348 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 348 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 0 ms 348 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 348 KB Output is correct
25 Correct 0 ms 348 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 0 ms 348 KB Output is correct
31 Correct 0 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 344 KB Output is correct
35 Correct 0 ms 600 KB Output is correct
36 Correct 0 ms 348 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 0 ms 348 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 348 KB Output is correct
43 Correct 0 ms 348 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 1 ms 348 KB Output is correct
46 Correct 1 ms 348 KB Output is correct
47 Correct 0 ms 348 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 1 ms 348 KB Output is correct
50 Correct 0 ms 344 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 0 ms 348 KB Output is correct
55 Correct 1 ms 716 KB Output is correct
56 Correct 1 ms 344 KB Output is correct
57 Correct 2 ms 604 KB Output is correct
58 Correct 62 ms 2696 KB Output is correct
59 Correct 546 ms 20284 KB Output is correct
60 Correct 547 ms 20432 KB Output is correct
61 Correct 550 ms 20288 KB Output is correct
62 Correct 1 ms 348 KB Output is correct
63 Correct 534 ms 19644 KB Output is correct
64 Correct 822 ms 20496 KB Output is correct
65 Correct 778 ms 20732 KB Output is correct
66 Correct 793 ms 20476 KB Output is correct
67 Correct 909 ms 20352 KB Output is correct
68 Correct 904 ms 20512 KB Output is correct
69 Correct 896 ms 20308 KB Output is correct
70 Correct 102 ms 2648 KB Output is correct
71 Correct 84 ms 2652 KB Output is correct
72 Correct 82 ms 2560 KB Output is correct
73 Correct 86 ms 2900 KB Output is correct
74 Correct 83 ms 2736 KB Output is correct
75 Correct 83 ms 2652 KB Output is correct
76 Correct 82 ms 2748 KB Output is correct
77 Correct 86 ms 2608 KB Output is correct
78 Correct 82 ms 2652 KB Output is correct
79 Correct 84 ms 2736 KB Output is correct
80 Correct 85 ms 2756 KB Output is correct
81 Correct 98 ms 2652 KB Output is correct
82 Correct 83 ms 2648 KB Output is correct
83 Correct 85 ms 2752 KB Output is correct
84 Correct 85 ms 2652 KB Output is correct
85 Correct 83 ms 2756 KB Output is correct
86 Correct 83 ms 2652 KB Output is correct
87 Correct 82 ms 2648 KB Output is correct
88 Correct 92 ms 2652 KB Output is correct
89 Correct 83 ms 2648 KB Output is correct
90 Correct 85 ms 2908 KB Output is correct