oj.uz

Submission #874273

# Submission time Handle Problem Language Result Execution time Memory
874273 2023-11-16T15:13:53 Z tsumondai Dango Maker (JOI18_dango_maker) C++14
100 / 100
 293 ms 80344 KB 
#include <bits/stdc++.h>
using namespace std;

#define int long long
#define fi first
#define se second
#define pb push_back
#define mp make_pair
#define foru(i, l, r) for(int i = l; i <= r; i++)
#define ford(i, r, l) for(int i = r; i >= l; i--)
#define __TIME  (1.0 * clock() / CLOCKS_PER_SEC)

typedef pair<int, int> ii;
typedef pair<ii, int> iii;
typedef pair<ii, ii> iiii;

const int N = 3000 + 5;

const int oo = 1e18, mod = 1e9 + 7;

int n, m, k, ans=0, dp[2*N][5];
int a[N][N]; // R G W

void process() {
	foru(tmp, 1, n+m) {
		memset(dp, 0, sizeof(dp));
		int i=1, j=tmp-1, cnt=1;
		while (i<=n && j>=1) {
			if (j>m) {
				i++; j--; continue;
			}
			dp[cnt][0]=max(dp[cnt-1][0], max(dp[cnt-1][1], dp[cnt-1][2]));
			if (a[i][j-1]==0 && a[i][j]==1 && a[i][j+1]==2) dp[cnt][1]=max(dp[cnt-1][0], dp[cnt-1][1])+1;
			if (a[i-1][j]==0 && a[i][j]==1 && a[i+1][j]==2) dp[cnt][2]=max(dp[cnt-1][0], dp[cnt-1][2])+1;
			i++; j--;
			cnt++;	
		}
		cnt--;
		ans+=max(dp[cnt][0], max(dp[cnt][1], dp[cnt][2]));
		//cout << dp[cnt][0] << ' ' << dp[cnt][1] << ' ' << dp[cnt][2] << '\n';
	}
	cout << ans << '\n';
	return;
}

signed main() {
	cin.tie(0)->sync_with_stdio(false);
	//freopen(".inp", "r", stdin);
	//freopen(".out", "w", stdout);
	cin >> n >> m;
	memset(a, -1, sizeof(a));
	foru(i, 1, n) foru(j, 1, m) {
		char x; 
		cin >> x; 
		if (x == 'R') a[i][j]=0;
		else if (x=='G') a[i][j]=1;
		else if (x=='W') a[i][j]=2;
	}

	process();
	cerr << "Time elapsed: " << __TIME << " s.\n";
	return 0;
}

/*
Xét các trường hợp đặc biệt
Kiểm tra lại input/output
Cố gắng trâu
Lật ngược bài toán
Calm down and get VOI
Stream of thought:
dp
*/

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 71256 KB Output is correct
2 Correct 12 ms 71256 KB Output is correct
3 Correct 9 ms 71260 KB Output is correct
4 Correct 9 ms 71132 KB Output is correct
5 Correct 9 ms 71260 KB Output is correct
6 Correct 9 ms 71324 KB Output is correct
7 Correct 10 ms 71260 KB Output is correct
8 Correct 9 ms 71260 KB Output is correct
9 Correct 9 ms 71260 KB Output is correct
10 Correct 9 ms 71180 KB Output is correct
11 Correct 9 ms 71260 KB Output is correct
12 Correct 9 ms 71332 KB Output is correct
13 Correct 9 ms 71260 KB Output is correct
14 Correct 9 ms 71260 KB Output is correct
15 Correct 10 ms 71260 KB Output is correct
16 Correct 10 ms 71260 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 71256 KB Output is correct
2 Correct 12 ms 71256 KB Output is correct
3 Correct 9 ms 71260 KB Output is correct
4 Correct 9 ms 71132 KB Output is correct
5 Correct 9 ms 71260 KB Output is correct
6 Correct 9 ms 71324 KB Output is correct
7 Correct 10 ms 71260 KB Output is correct
8 Correct 9 ms 71260 KB Output is correct
9 Correct 9 ms 71260 KB Output is correct
10 Correct 9 ms 71180 KB Output is correct
11 Correct 9 ms 71260 KB Output is correct
12 Correct 9 ms 71332 KB Output is correct
13 Correct 9 ms 71260 KB Output is correct
14 Correct 9 ms 71260 KB Output is correct
15 Correct 10 ms 71260 KB Output is correct
16 Correct 10 ms 71260 KB Output is correct
17 Correct 9 ms 71260 KB Output is correct
18 Correct 9 ms 71260 KB Output is correct
19 Correct 9 ms 71164 KB Output is correct
20 Correct 9 ms 71260 KB Output is correct
21 Correct 10 ms 71260 KB Output is correct
22 Correct 12 ms 71260 KB Output is correct
23 Correct 10 ms 71260 KB Output is correct
24 Correct 9 ms 71260 KB Output is correct
25 Correct 9 ms 71376 KB Output is correct
26 Correct 9 ms 71140 KB Output is correct
27 Correct 9 ms 71260 KB Output is correct
28 Correct 10 ms 71260 KB Output is correct
29 Correct 10 ms 71260 KB Output is correct
30 Correct 9 ms 71356 KB Output is correct
31 Correct 9 ms 71260 KB Output is correct
32 Correct 10 ms 71368 KB Output is correct
33 Correct 9 ms 71260 KB Output is correct
34 Correct 9 ms 71180 KB Output is correct
35 Correct 9 ms 71260 KB Output is correct
36 Correct 9 ms 71380 KB Output is correct
37 Correct 9 ms 71260 KB Output is correct
38 Correct 9 ms 71260 KB Output is correct
39 Correct 9 ms 71260 KB Output is correct
40 Correct 9 ms 71380 KB Output is correct
41 Correct 9 ms 71148 KB Output is correct
42 Correct 9 ms 71260 KB Output is correct
43 Correct 9 ms 71260 KB Output is correct
44 Correct 10 ms 71260 KB Output is correct
45 Correct 9 ms 71260 KB Output is correct
46 Correct 9 ms 71260 KB Output is correct
47 Correct 9 ms 71260 KB Output is correct
48 Correct 10 ms 71260 KB Output is correct
49 Correct 9 ms 71164 KB Output is correct
50 Correct 9 ms 71260 KB Output is correct
51 Correct 10 ms 71260 KB Output is correct
52 Correct 9 ms 71260 KB Output is correct
53 Correct 9 ms 71260 KB Output is correct

Subtask #3
67.0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 23 ms 71256 KB Output is correct
2 Correct 12 ms 71256 KB Output is correct
3 Correct 9 ms 71260 KB Output is correct
4 Correct 9 ms 71132 KB Output is correct
5 Correct 9 ms 71260 KB Output is correct
6 Correct 9 ms 71324 KB Output is correct
7 Correct 10 ms 71260 KB Output is correct
8 Correct 9 ms 71260 KB Output is correct
9 Correct 9 ms 71260 KB Output is correct
10 Correct 9 ms 71180 KB Output is correct
11 Correct 9 ms 71260 KB Output is correct
12 Correct 9 ms 71332 KB Output is correct
13 Correct 9 ms 71260 KB Output is correct
14 Correct 9 ms 71260 KB Output is correct
15 Correct 10 ms 71260 KB Output is correct
16 Correct 10 ms 71260 KB Output is correct
17 Correct 9 ms 71260 KB Output is correct
18 Correct 9 ms 71260 KB Output is correct
19 Correct 9 ms 71164 KB Output is correct
20 Correct 9 ms 71260 KB Output is correct
21 Correct 10 ms 71260 KB Output is correct
22 Correct 12 ms 71260 KB Output is correct
23 Correct 10 ms 71260 KB Output is correct
24 Correct 9 ms 71260 KB Output is correct
25 Correct 9 ms 71376 KB Output is correct
26 Correct 9 ms 71140 KB Output is correct
27 Correct 9 ms 71260 KB Output is correct
28 Correct 10 ms 71260 KB Output is correct
29 Correct 10 ms 71260 KB Output is correct
30 Correct 9 ms 71356 KB Output is correct
31 Correct 9 ms 71260 KB Output is correct
32 Correct 10 ms 71368 KB Output is correct
33 Correct 9 ms 71260 KB Output is correct
34 Correct 9 ms 71180 KB Output is correct
35 Correct 9 ms 71260 KB Output is correct
36 Correct 9 ms 71380 KB Output is correct
37 Correct 9 ms 71260 KB Output is correct
38 Correct 9 ms 71260 KB Output is correct
39 Correct 9 ms 71260 KB Output is correct
40 Correct 9 ms 71380 KB Output is correct
41 Correct 9 ms 71148 KB Output is correct
42 Correct 9 ms 71260 KB Output is correct
43 Correct 9 ms 71260 KB Output is correct
44 Correct 10 ms 71260 KB Output is correct
45 Correct 9 ms 71260 KB Output is correct
46 Correct 9 ms 71260 KB Output is correct
47 Correct 9 ms 71260 KB Output is correct
48 Correct 10 ms 71260 KB Output is correct
49 Correct 9 ms 71164 KB Output is correct
50 Correct 9 ms 71260 KB Output is correct
51 Correct 10 ms 71260 KB Output is correct
52 Correct 9 ms 71260 KB Output is correct
53 Correct 9 ms 71260 KB Output is correct
54 Correct 17 ms 71260 KB Output is correct
55 Correct 20 ms 71392 KB Output is correct
56 Correct 17 ms 71396 KB Output is correct
57 Correct 16 ms 71168 KB Output is correct
58 Correct 42 ms 72276 KB Output is correct
59 Correct 284 ms 80088 KB Output is correct
60 Correct 288 ms 80172 KB Output is correct
61 Correct 293 ms 80344 KB Output is correct
62 Correct 16 ms 71260 KB Output is correct
63 Correct 283 ms 79872 KB Output is correct
64 Correct 180 ms 80076 KB Output is correct
65 Correct 177 ms 80172 KB Output is correct
66 Correct 180 ms 80076 KB Output is correct
67 Correct 171 ms 80172 KB Output is correct
68 Correct 178 ms 80084 KB Output is correct
69 Correct 181 ms 80084 KB Output is correct
70 Correct 28 ms 72276 KB Output is correct
71 Correct 31 ms 72564 KB Output is correct
72 Correct 33 ms 72284 KB Output is correct
73 Correct 29 ms 72284 KB Output is correct
74 Correct 30 ms 72160 KB Output is correct
75 Correct 29 ms 72276 KB Output is correct
76 Correct 28 ms 72284 KB Output is correct
77 Correct 28 ms 72324 KB Output is correct
78 Correct 27 ms 72416 KB Output is correct
79 Correct 29 ms 72120 KB Output is correct
80 Correct 30 ms 72276 KB Output is correct
81 Correct 35 ms 72284 KB Output is correct
82 Correct 28 ms 72276 KB Output is correct
83 Correct 28 ms 72276 KB Output is correct
84 Correct 34 ms 72276 KB Output is correct
85 Correct 28 ms 72268 KB Output is correct
86 Correct 37 ms 72160 KB Output is correct
87 Correct 29 ms 72272 KB Output is correct
88 Correct 31 ms 72276 KB Output is correct
89 Correct 27 ms 72112 KB Output is correct
90 Correct 28 ms 72284 KB Output is correct