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Submission #951423

# Submission time Handle Problem Language Result Execution time Memory
951423 2024-03-21T23:42:19 Z pragmatist Dango Maker (JOI18_dango_maker) C++17
100 / 100
 270 ms 53800 KB 
#include<bits/stdc++.h>

using namespace std;

const int N = (int)3e3+7;
const long long INF = (long long)1e18+7;

int n, m, ans;
bool b[N][N], c[N][N];
char a[N][N];
vector<pair<bool, bool> > v[2*N];
int dp[N][2];

int get(vector<pair<bool, bool> > &h) {
	int t = (int)h.size();
	for(int i = 0; i < t; ++i) {
		dp[i][0]=dp[i][1]=0;
	}
	int res = 0;
	for(int i = 3; i < t; ++i) {
		dp[i][0]=dp[i-1][0];
		dp[i][1]=dp[i-1][1];
		if(h[i].first) {
			dp[i][0]=max(dp[i][0], dp[i-1][0]);
			dp[i][0]=max(dp[i][0], dp[i-1][1]);
			dp[i][0]=max(dp[i][0], dp[i-2][0]);
			dp[i][0]=max(dp[i][0], dp[i-2][1]);
			dp[i][0]++;			
		}
		if(h[i].second) {
			dp[i][1]=max(dp[i][1], dp[i-1][1]);
			dp[i][1]=max(dp[i][1], dp[i-2][1]);
	   		dp[i][1]=max(dp[i][1], dp[i-3][0]);
	   		dp[i][1]++;
		}
		res=max(res, dp[i][0]);
		res=max(res, dp[i][1]);
	}
	return res;
}

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
	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 = 1; j <= m; ++j) {
			if(j+2<=m && a[i][j]=='R' && a[i][j+1]=='G' && a[i][j+2]=='W') {
				b[i][j]=1;
			}
			if(i+2<=n && a[i][j]=='R' && a[i+1][j]=='G' && a[i+2][j]=='W') {
				c[i][j]=1;
			}
		}
	}
	for(int i = 1; i <= n; ++i) {
		for(int j = 1; j <= m; ++j) {
			v[i+j].push_back({b[i][j], c[i][j]});
		}
	}
	for(int i = 1; i <= n+m; ++i) {
		v[i].push_back({0, 0});
		v[i].push_back({0, 0});
		v[i].push_back({0, 0});
	}
	for(int i = 1; i <= n+m; ++i) {
		reverse(v[i].begin(), v[i].end());
		ans += get(v[i]);
	}
	cout << ans;
    return 0;
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Correct 0 ms 604 KB Output is correct
6 Correct 1 ms 4700 KB Output is correct
7 Correct 2 ms 4700 KB Output is correct
8 Correct 1 ms 4700 KB Output is correct
9 Correct 1 ms 4700 KB Output is correct
10 Correct 1 ms 2652 KB Output is correct
11 Correct 1 ms 4700 KB Output is correct
12 Correct 1 ms 4700 KB Output is correct
13 Correct 1 ms 4700 KB Output is correct
14 Correct 1 ms 2652 KB Output is correct
15 Correct 1 ms 2652 KB Output is correct
16 Correct 1 ms 2652 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Correct 0 ms 604 KB Output is correct
6 Correct 1 ms 4700 KB Output is correct
7 Correct 2 ms 4700 KB Output is correct
8 Correct 1 ms 4700 KB Output is correct
9 Correct 1 ms 4700 KB Output is correct
10 Correct 1 ms 2652 KB Output is correct
11 Correct 1 ms 4700 KB Output is correct
12 Correct 1 ms 4700 KB Output is correct
13 Correct 1 ms 4700 KB Output is correct
14 Correct 1 ms 2652 KB Output is correct
15 Correct 1 ms 2652 KB Output is correct
16 Correct 1 ms 2652 KB Output is correct
17 Correct 1 ms 4700 KB Output is correct
18 Correct 2 ms 4700 KB Output is correct
19 Correct 1 ms 6748 KB Output is correct
20 Correct 1 ms 6748 KB Output is correct
21 Correct 1 ms 6748 KB Output is correct
22 Correct 1 ms 6748 KB Output is correct
23 Correct 1 ms 6748 KB Output is correct
24 Correct 1 ms 4700 KB Output is correct
25 Correct 1 ms 2652 KB Output is correct
26 Correct 1 ms 604 KB Output is correct
27 Correct 1 ms 6748 KB Output is correct
28 Correct 1 ms 6748 KB Output is correct
29 Correct 1 ms 6748 KB Output is correct
30 Correct 1 ms 4696 KB Output is correct
31 Correct 1 ms 4700 KB Output is correct
32 Correct 1 ms 4700 KB Output is correct
33 Correct 1 ms 6748 KB Output is correct
34 Correct 1 ms 6748 KB Output is correct
35 Correct 1 ms 6748 KB Output is correct
36 Correct 1 ms 6748 KB Output is correct
37 Correct 1 ms 7000 KB Output is correct
38 Correct 1 ms 6748 KB Output is correct
39 Correct 1 ms 6748 KB Output is correct
40 Correct 1 ms 6748 KB Output is correct
41 Correct 1 ms 6748 KB Output is correct
42 Correct 1 ms 6748 KB Output is correct
43 Correct 1 ms 6748 KB Output is correct
44 Correct 1 ms 6748 KB Output is correct
45 Correct 1 ms 6748 KB Output is correct
46 Correct 1 ms 6744 KB Output is correct
47 Correct 1 ms 6748 KB Output is correct
48 Correct 2 ms 6748 KB Output is correct
49 Correct 1 ms 6776 KB Output is correct
50 Correct 1 ms 6748 KB Output is correct
51 Correct 1 ms 6748 KB Output is correct
52 Correct 1 ms 6748 KB Output is correct
53 Correct 1 ms 6744 KB Output is correct

Subtask #3
67.0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 600 KB Output is correct
2 Correct 0 ms 604 KB Output is correct
3 Correct 1 ms 604 KB Output is correct
4 Correct 0 ms 604 KB Output is correct
5 Correct 0 ms 604 KB Output is correct
6 Correct 1 ms 4700 KB Output is correct
7 Correct 2 ms 4700 KB Output is correct
8 Correct 1 ms 4700 KB Output is correct
9 Correct 1 ms 4700 KB Output is correct
10 Correct 1 ms 2652 KB Output is correct
11 Correct 1 ms 4700 KB Output is correct
12 Correct 1 ms 4700 KB Output is correct
13 Correct 1 ms 4700 KB Output is correct
14 Correct 1 ms 2652 KB Output is correct
15 Correct 1 ms 2652 KB Output is correct
16 Correct 1 ms 2652 KB Output is correct
17 Correct 1 ms 4700 KB Output is correct
18 Correct 2 ms 4700 KB Output is correct
19 Correct 1 ms 6748 KB Output is correct
20 Correct 1 ms 6748 KB Output is correct
21 Correct 1 ms 6748 KB Output is correct
22 Correct 1 ms 6748 KB Output is correct
23 Correct 1 ms 6748 KB Output is correct
24 Correct 1 ms 4700 KB Output is correct
25 Correct 1 ms 2652 KB Output is correct
26 Correct 1 ms 604 KB Output is correct
27 Correct 1 ms 6748 KB Output is correct
28 Correct 1 ms 6748 KB Output is correct
29 Correct 1 ms 6748 KB Output is correct
30 Correct 1 ms 4696 KB Output is correct
31 Correct 1 ms 4700 KB Output is correct
32 Correct 1 ms 4700 KB Output is correct
33 Correct 1 ms 6748 KB Output is correct
34 Correct 1 ms 6748 KB Output is correct
35 Correct 1 ms 6748 KB Output is correct
36 Correct 1 ms 6748 KB Output is correct
37 Correct 1 ms 7000 KB Output is correct
38 Correct 1 ms 6748 KB Output is correct
39 Correct 1 ms 6748 KB Output is correct
40 Correct 1 ms 6748 KB Output is correct
41 Correct 1 ms 6748 KB Output is correct
42 Correct 1 ms 6748 KB Output is correct
43 Correct 1 ms 6748 KB Output is correct
44 Correct 1 ms 6748 KB Output is correct
45 Correct 1 ms 6748 KB Output is correct
46 Correct 1 ms 6744 KB Output is correct
47 Correct 1 ms 6748 KB Output is correct
48 Correct 2 ms 6748 KB Output is correct
49 Correct 1 ms 6776 KB Output is correct
50 Correct 1 ms 6748 KB Output is correct
51 Correct 1 ms 6748 KB Output is correct
52 Correct 1 ms 6748 KB Output is correct
53 Correct 1 ms 6744 KB Output is correct
54 Correct 1 ms 2652 KB Output is correct
55 Correct 3 ms 19092 KB Output is correct
56 Correct 1 ms 4700 KB Output is correct
57 Correct 4 ms 23132 KB Output is correct
58 Correct 31 ms 17548 KB Output is correct
59 Correct 267 ms 53348 KB Output is correct
60 Correct 263 ms 53348 KB Output is correct
61 Correct 262 ms 53332 KB Output is correct
62 Correct 1 ms 2652 KB Output is correct
63 Correct 270 ms 52716 KB Output is correct
64 Correct 225 ms 53800 KB Output is correct
65 Correct 224 ms 53328 KB Output is correct
66 Correct 225 ms 53588 KB Output is correct
67 Correct 243 ms 45416 KB Output is correct
68 Correct 248 ms 51560 KB Output is correct
69 Correct 229 ms 52816 KB Output is correct
70 Correct 27 ms 17500 KB Output is correct
71 Correct 26 ms 17492 KB Output is correct
72 Correct 34 ms 17500 KB Output is correct
73 Correct 35 ms 17564 KB Output is correct
74 Correct 30 ms 17496 KB Output is correct
75 Correct 31 ms 17548 KB Output is correct
76 Correct 33 ms 17500 KB Output is correct
77 Correct 27 ms 17500 KB Output is correct
78 Correct 27 ms 17704 KB Output is correct
79 Correct 27 ms 17500 KB Output is correct
80 Correct 29 ms 17496 KB Output is correct
81 Correct 29 ms 17464 KB Output is correct
82 Correct 27 ms 17500 KB Output is correct
83 Correct 27 ms 17496 KB Output is correct
84 Correct 30 ms 17492 KB Output is correct
85 Correct 30 ms 17648 KB Output is correct
86 Correct 30 ms 17548 KB Output is correct
87 Correct 29 ms 17500 KB Output is correct
88 Correct 28 ms 17616 KB Output is correct
89 Correct 29 ms 17500 KB Output is correct
90 Correct 30 ms 17696 KB Output is correct