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Submission #1002899

# Submission time Handle Problem Language Result Execution time Memory
1002899 2024-06-19T21:14:49 Z Lobo Cigle (COI21_cigle) C++17
100 / 100
 262 ms 197460 KB 
#include<bits/stdc++.h>
using namespace std;
#define int long long
#define pb push_back
#define mp make_pair
#define fr first
#define sc second
#define all(x) x.begin(),x.end()
const int inf = 1e18+10;

int32_t main() {
	// #ifndef ONLINE_JUDGE
	// freopen("in.in","r",stdin);
	// freopen("out.out","w",stdout);
	// #endif
	int n;
	cin >> n;
	vector<int> a(n+10);
	for(int i = 1; i <= n; i++) {
		cin >> a[i];
	}


	vector<vector<int>> dp(n+10,vector<int>(n+10,-inf));
	
	for(int i = 1; i <= n; i++) dp[1][i] = 0;
	int ans = 0;
	for(int i = 2; i <= n; i++) {
		int k = i;
		int sj = 0;
		int sk = 0;
		vector<int> qtd(n+10,0);
		// cout << i << endl;
		for(int j = i; j <= n; j++) {
			sj+= a[j];
			while(k-1 >= 1 && sk+a[k-1] <= sj) {
				k--;
				qtd[k] = (k == i-1 ? 0 : qtd[k+1]);
				sk+= a[k];
				if(sk == sj) qtd[k]++;
			}
			qtd[j] = (j == i ? 0 : qtd[j-1]);
			if(sj == sk) qtd[j]++;
		}
		vector<int> pfmaxdp(n+10,-inf);

		for(int j = 1; j <= i-1; j++) {
			pfmaxdp[j] = max(pfmaxdp[j-1],dp[j][i-1]);
		}
		k = i;
		sj = 0;
		sk = 0;
		int maxdpqtd = -inf;
		for(int j = i; j <= n; j++) {
			sj+= a[j];
			while(k-1 >= 1 && sk+a[k-1] <= sj) {
				k--;
				sk+= a[k];

				maxdpqtd = max(maxdpqtd,dp[k][i-1]+(k == i-1 ? 0 : qtd[k+1]));
			}
			maxdpqtd = max(maxdpqtd,dp[k][i-1]+(k == i-1 ? 0 : qtd[k+1]));
			dp[i][j] = max(maxdpqtd,pfmaxdp[k-1]+(j == i ? 0 : qtd[j-1]));
			// cout << " " << j << " " << k << " " << dp[i][j] << " " << dp[k][i-1] << endl;
		}
	}


	for(int i = 1; i <= n; i++) {
		ans = max(ans,dp[i][n]);
	}
	cout << ans << endl;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 432 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 432 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 344 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 432 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 432 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 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 436 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 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 604 KB Output is correct
20 Correct 0 ms 348 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2396 KB Output is correct
2 Correct 2 ms 2392 KB Output is correct
3 Correct 2 ms 2396 KB Output is correct
4 Correct 2 ms 2484 KB Output is correct
5 Correct 3 ms 2396 KB Output is correct
6 Correct 3 ms 2500 KB Output is correct
7 Correct 3 ms 2260 KB Output is correct
8 Correct 3 ms 2392 KB Output is correct
9 Correct 2 ms 2396 KB Output is correct
10 Correct 2 ms 2396 KB Output is correct
11 Correct 2 ms 2396 KB Output is correct
12 Correct 2 ms 2504 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 432 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 432 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 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 436 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 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 604 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 2 ms 2396 KB Output is correct
22 Correct 2 ms 2392 KB Output is correct
23 Correct 2 ms 2396 KB Output is correct
24 Correct 2 ms 2484 KB Output is correct
25 Correct 3 ms 2396 KB Output is correct
26 Correct 3 ms 2500 KB Output is correct
27 Correct 3 ms 2260 KB Output is correct
28 Correct 3 ms 2392 KB Output is correct
29 Correct 2 ms 2396 KB Output is correct
30 Correct 2 ms 2396 KB Output is correct
31 Correct 2 ms 2396 KB Output is correct
32 Correct 2 ms 2504 KB Output is correct
33 Correct 2 ms 2392 KB Output is correct
34 Correct 2 ms 2480 KB Output is correct
35 Correct 2 ms 2396 KB Output is correct
36 Correct 2 ms 2396 KB Output is correct
37 Correct 2 ms 2396 KB Output is correct
38 Correct 2 ms 2396 KB Output is correct
39 Correct 3 ms 2396 KB Output is correct
40 Correct 3 ms 2396 KB Output is correct
41 Correct 2 ms 2396 KB Output is correct
42 Correct 2 ms 2396 KB Output is correct
43 Correct 2 ms 2396 KB Output is correct
44 Correct 2 ms 2396 KB Output is correct
45 Correct 2 ms 2484 KB Output is correct
46 Correct 2 ms 2500 KB Output is correct
47 Correct 2 ms 2396 KB Output is correct
48 Correct 4 ms 2652 KB Output is correct
49 Correct 2 ms 2396 KB Output is correct

Subtask #5
52.0 / 52.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 432 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 1 ms 432 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 344 KB Output is correct
10 Correct 1 ms 344 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 344 KB Output is correct
13 Correct 0 ms 436 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 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 604 KB Output is correct
20 Correct 0 ms 348 KB Output is correct
21 Correct 2 ms 2396 KB Output is correct
22 Correct 2 ms 2392 KB Output is correct
23 Correct 2 ms 2396 KB Output is correct
24 Correct 2 ms 2484 KB Output is correct
25 Correct 3 ms 2396 KB Output is correct
26 Correct 3 ms 2500 KB Output is correct
27 Correct 3 ms 2260 KB Output is correct
28 Correct 3 ms 2392 KB Output is correct
29 Correct 2 ms 2396 KB Output is correct
30 Correct 2 ms 2396 KB Output is correct
31 Correct 2 ms 2396 KB Output is correct
32 Correct 2 ms 2504 KB Output is correct
33 Correct 2 ms 2392 KB Output is correct
34 Correct 2 ms 2480 KB Output is correct
35 Correct 2 ms 2396 KB Output is correct
36 Correct 2 ms 2396 KB Output is correct
37 Correct 2 ms 2396 KB Output is correct
38 Correct 2 ms 2396 KB Output is correct
39 Correct 3 ms 2396 KB Output is correct
40 Correct 3 ms 2396 KB Output is correct
41 Correct 2 ms 2396 KB Output is correct
42 Correct 2 ms 2396 KB Output is correct
43 Correct 2 ms 2396 KB Output is correct
44 Correct 2 ms 2396 KB Output is correct
45 Correct 2 ms 2484 KB Output is correct
46 Correct 2 ms 2500 KB Output is correct
47 Correct 2 ms 2396 KB Output is correct
48 Correct 4 ms 2652 KB Output is correct
49 Correct 2 ms 2396 KB Output is correct
50 Correct 222 ms 197120 KB Output is correct
51 Correct 209 ms 197204 KB Output is correct
52 Correct 185 ms 197160 KB Output is correct
53 Correct 193 ms 197200 KB Output is correct
54 Correct 199 ms 197200 KB Output is correct
55 Correct 187 ms 197180 KB Output is correct
56 Correct 217 ms 197096 KB Output is correct
57 Correct 233 ms 197052 KB Output is correct
58 Correct 243 ms 197460 KB Output is correct
59 Correct 237 ms 197176 KB Output is correct
60 Correct 241 ms 197160 KB Output is correct
61 Correct 237 ms 197200 KB Output is correct
62 Correct 222 ms 197200 KB Output is correct
63 Correct 215 ms 197200 KB Output is correct
64 Correct 226 ms 197204 KB Output is correct
65 Correct 212 ms 197112 KB Output is correct
66 Correct 211 ms 197036 KB Output is correct
67 Correct 192 ms 197188 KB Output is correct
68 Correct 196 ms 197000 KB Output is correct
69 Correct 188 ms 197220 KB Output is correct
70 Correct 234 ms 197200 KB Output is correct
71 Correct 262 ms 197444 KB Output is correct
72 Correct 244 ms 197200 KB Output is correct