oj.uz

Submission #1116203

# Submission time Handle Problem Language Result Execution time Memory
1116203 2024-11-21T10:43:01 Z NotLinux Cigle (COI21_cigle) C++17
100 / 100
 508 ms 294300 KB 
// Author : FatihCihan
#include <bits/stdc++.h>
using namespace std;
#define all(v) v.begin() , v.end()
#define sz(a) (int)a.size()
const int N = 5e3 * 5e3 + 7;
const int inf = 1e9 + 7;
void solve(){
	int n;
	cin >> n;
	int arr[n] , pre[n+1] , cnt[N];
	memset(cnt , -1 , sizeof(cnt));
	pre[0] = 0;
	cnt[0] = -1;
	for(int i = 0;i<n;i++){
		cin >> arr[i];
		pre[i+1] = pre[i] + arr[i];
		cnt[pre[i+1]] = i;
	}
	int dp[n+1][n+1] = {0} , maxi[n+1][n+1] = {0};
	for(int j = 2;j<n;j++){
		int sayac = 0;
		for(int i = j+1;i<=n;i++){
			maxi[i][j] = max({maxi[i][j] , maxi[i-1][j] , maxi[i][j-1] , dp[i][j]});
			if(2 * pre[j] - pre[i] >= 0 and cnt[2 * pre[j] - pre[i]] != -1){
				sayac++;
				// cout << " aha : " << i << " , " << j << " => " << sayac << " + " << maxi[j][cnt[2 * pre[j] - pre[i]]] << endl;
				// cout << "wtf : " << j << " , " << cnt[2 * pre[j] - pre[i]] << " : " << maxi[j][cnt[2 * pre[j] - pre[i]]] << endl;
				dp[i+1][j] = max(dp[i+1][j] , maxi[j][cnt[2 * pre[j] - pre[i]]] + sayac);
				// cout << "AHA : " << i << " , " << j << " : " << maxi[j][cnt[2 * pre[j] - pre[i]]] << " tf " << cnt[2 * pre[j] - pre[i]] << endl;
			}
			else{
				dp[i+1][j] = max(dp[i+1][j] , dp[i][j]);	
			}
			if(j > 0){
				if(i - j > 1)dp[i+1][i] = max(dp[i+1][i] , dp[i][j]);	
			}
			else{
				if(i > 2)dp[i+1][i] = max(dp[i+1][i] , dp[i][j]);	
			}
			// if(dp[i][j] >= 3){
			// 	cout << i << " " << j << " : " << dp[i][j] << " , " << maxi[i][j] << endl;
			// }
		}
	}
	int ans = 0;
	for(int i = 0;i<n;i++){
		ans = max(ans , dp[n][i]);
	}
	cout << ans << endl;
}
signed main(){
	ios_base::sync_with_stdio(0);cin.tie(0);
	int testcase = 1;//cin >> testcase;
	while(testcase--)solve();
	cerr << 1000.0 * clock() / CLOCKS_PER_SEC << " ms" << endl;
}

Subtask #1
9.0 / 9.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 98120 KB Output is correct
2 Correct 84 ms 98120 KB Output is correct
3 Correct 86 ms 98048 KB Output is correct
4 Correct 92 ms 98120 KB Output is correct
5 Correct 81 ms 98120 KB Output is correct
6 Correct 75 ms 98184 KB Output is correct
7 Correct 83 ms 98120 KB Output is correct
8 Correct 83 ms 98120 KB Output is correct
9 Correct 87 ms 98272 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 98120 KB Output is correct
2 Correct 84 ms 98120 KB Output is correct
3 Correct 86 ms 98048 KB Output is correct
4 Correct 92 ms 98120 KB Output is correct
5 Correct 81 ms 98120 KB Output is correct
6 Correct 75 ms 98184 KB Output is correct
7 Correct 83 ms 98120 KB Output is correct
8 Correct 83 ms 98120 KB Output is correct
9 Correct 87 ms 98272 KB Output is correct
10 Correct 85 ms 98120 KB Output is correct
11 Correct 83 ms 98120 KB Output is correct
12 Correct 84 ms 98132 KB Output is correct
13 Correct 82 ms 98120 KB Output is correct
14 Correct 87 ms 98120 KB Output is correct
15 Correct 79 ms 98120 KB Output is correct
16 Correct 83 ms 98128 KB Output is correct
17 Correct 86 ms 98120 KB Output is correct
18 Correct 83 ms 98120 KB Output is correct
19 Correct 82 ms 98120 KB Output is correct
20 Correct 82 ms 98120 KB Output is correct

Subtask #3
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 80 ms 100132 KB Output is correct
2 Correct 88 ms 100172 KB Output is correct
3 Correct 86 ms 100168 KB Output is correct
4 Correct 86 ms 100168 KB Output is correct
5 Correct 86 ms 100168 KB Output is correct
6 Correct 88 ms 100168 KB Output is correct
7 Correct 95 ms 100184 KB Output is correct
8 Correct 80 ms 100168 KB Output is correct
9 Correct 83 ms 100168 KB Output is correct
10 Correct 80 ms 100216 KB Output is correct
11 Correct 80 ms 100168 KB Output is correct
12 Correct 80 ms 100168 KB Output is correct

Subtask #4
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 98120 KB Output is correct
2 Correct 84 ms 98120 KB Output is correct
3 Correct 86 ms 98048 KB Output is correct
4 Correct 92 ms 98120 KB Output is correct
5 Correct 81 ms 98120 KB Output is correct
6 Correct 75 ms 98184 KB Output is correct
7 Correct 83 ms 98120 KB Output is correct
8 Correct 83 ms 98120 KB Output is correct
9 Correct 87 ms 98272 KB Output is correct
10 Correct 85 ms 98120 KB Output is correct
11 Correct 83 ms 98120 KB Output is correct
12 Correct 84 ms 98132 KB Output is correct
13 Correct 82 ms 98120 KB Output is correct
14 Correct 87 ms 98120 KB Output is correct
15 Correct 79 ms 98120 KB Output is correct
16 Correct 83 ms 98128 KB Output is correct
17 Correct 86 ms 98120 KB Output is correct
18 Correct 83 ms 98120 KB Output is correct
19 Correct 82 ms 98120 KB Output is correct
20 Correct 82 ms 98120 KB Output is correct
21 Correct 80 ms 100132 KB Output is correct
22 Correct 88 ms 100172 KB Output is correct
23 Correct 86 ms 100168 KB Output is correct
24 Correct 86 ms 100168 KB Output is correct
25 Correct 86 ms 100168 KB Output is correct
26 Correct 88 ms 100168 KB Output is correct
27 Correct 95 ms 100184 KB Output is correct
28 Correct 80 ms 100168 KB Output is correct
29 Correct 83 ms 100168 KB Output is correct
30 Correct 80 ms 100216 KB Output is correct
31 Correct 80 ms 100168 KB Output is correct
32 Correct 80 ms 100168 KB Output is correct
33 Correct 88 ms 100168 KB Output is correct
34 Correct 87 ms 100084 KB Output is correct
35 Correct 90 ms 100168 KB Output is correct
36 Correct 83 ms 100104 KB Output is correct
37 Correct 83 ms 100168 KB Output is correct
38 Correct 92 ms 100168 KB Output is correct
39 Correct 80 ms 100100 KB Output is correct
40 Correct 87 ms 100184 KB Output is correct
41 Correct 88 ms 100168 KB Output is correct
42 Correct 89 ms 100168 KB Output is correct
43 Correct 89 ms 100152 KB Output is correct
44 Correct 86 ms 100168 KB Output is correct
45 Correct 90 ms 100168 KB Output is correct
46 Correct 84 ms 100244 KB Output is correct
47 Correct 88 ms 100168 KB Output is correct
48 Correct 90 ms 100168 KB Output is correct
49 Correct 87 ms 100168 KB Output is correct

Subtask #5
52.0 / 52.0

# Verdict Execution time Memory Grader output
1 Correct 85 ms 98120 KB Output is correct
2 Correct 84 ms 98120 KB Output is correct
3 Correct 86 ms 98048 KB Output is correct
4 Correct 92 ms 98120 KB Output is correct
5 Correct 81 ms 98120 KB Output is correct
6 Correct 75 ms 98184 KB Output is correct
7 Correct 83 ms 98120 KB Output is correct
8 Correct 83 ms 98120 KB Output is correct
9 Correct 87 ms 98272 KB Output is correct
10 Correct 85 ms 98120 KB Output is correct
11 Correct 83 ms 98120 KB Output is correct
12 Correct 84 ms 98132 KB Output is correct
13 Correct 82 ms 98120 KB Output is correct
14 Correct 87 ms 98120 KB Output is correct
15 Correct 79 ms 98120 KB Output is correct
16 Correct 83 ms 98128 KB Output is correct
17 Correct 86 ms 98120 KB Output is correct
18 Correct 83 ms 98120 KB Output is correct
19 Correct 82 ms 98120 KB Output is correct
20 Correct 82 ms 98120 KB Output is correct
21 Correct 80 ms 100132 KB Output is correct
22 Correct 88 ms 100172 KB Output is correct
23 Correct 86 ms 100168 KB Output is correct
24 Correct 86 ms 100168 KB Output is correct
25 Correct 86 ms 100168 KB Output is correct
26 Correct 88 ms 100168 KB Output is correct
27 Correct 95 ms 100184 KB Output is correct
28 Correct 80 ms 100168 KB Output is correct
29 Correct 83 ms 100168 KB Output is correct
30 Correct 80 ms 100216 KB Output is correct
31 Correct 80 ms 100168 KB Output is correct
32 Correct 80 ms 100168 KB Output is correct
33 Correct 88 ms 100168 KB Output is correct
34 Correct 87 ms 100084 KB Output is correct
35 Correct 90 ms 100168 KB Output is correct
36 Correct 83 ms 100104 KB Output is correct
37 Correct 83 ms 100168 KB Output is correct
38 Correct 92 ms 100168 KB Output is correct
39 Correct 80 ms 100100 KB Output is correct
40 Correct 87 ms 100184 KB Output is correct
41 Correct 88 ms 100168 KB Output is correct
42 Correct 89 ms 100168 KB Output is correct
43 Correct 89 ms 100152 KB Output is correct
44 Correct 86 ms 100168 KB Output is correct
45 Correct 90 ms 100168 KB Output is correct
46 Correct 84 ms 100244 KB Output is correct
47 Correct 88 ms 100168 KB Output is correct
48 Correct 90 ms 100168 KB Output is correct
49 Correct 87 ms 100168 KB Output is correct
50 Correct 470 ms 294100 KB Output is correct
51 Correct 415 ms 294076 KB Output is correct
52 Correct 432 ms 293960 KB Output is correct
53 Correct 412 ms 294024 KB Output is correct
54 Correct 455 ms 293900 KB Output is correct
55 Correct 452 ms 293960 KB Output is correct
56 Correct 430 ms 293960 KB Output is correct
57 Correct 440 ms 294300 KB Output is correct
58 Correct 419 ms 293996 KB Output is correct
59 Correct 416 ms 293956 KB Output is correct
60 Correct 508 ms 293960 KB Output is correct
61 Correct 451 ms 293960 KB Output is correct
62 Correct 440 ms 293960 KB Output is correct
63 Correct 419 ms 293960 KB Output is correct
64 Correct 427 ms 293960 KB Output is correct
65 Correct 438 ms 294012 KB Output is correct
66 Correct 435 ms 294124 KB Output is correct
67 Correct 401 ms 293960 KB Output is correct
68 Correct 422 ms 294040 KB Output is correct
69 Correct 408 ms 293992 KB Output is correct
70 Correct 485 ms 293960 KB Output is correct
71 Correct 453 ms 294124 KB Output is correct
72 Correct 440 ms 294120 KB Output is correct