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Submission #967484

# Submission time Handle Problem Language Result Execution time Memory
967484 2024-04-22T08:26:08 Z Halym2007 Split the sequence (APIO14_sequence) C++17
0 / 100
 2000 ms 8432 KB 
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pb push_back
#define sz size()
const int N = 1e5 + 5;
ll a[N], dp[N][205], par[N][205];
int n, k;
ll sum (int x, int y) {
	ll ret = 0;
	for (int i = x; i <= y; ++i) {
		ret += a[i];
	}
	return ret;
} 


int main () {
//	freopen ("sequence.in", "r", stdin);
//	freopen ("sequence.out", "w", stdout);
//	freopen ("input.txt", "r", stdin);
	cin >> n >> k;
	for (int i = 1; i <= n; ++i) {
		cin >> a[i];
	}
	reverse (a + 1,a + n + 1);
	// dp[i][j] i-cenli j grupba bolemde maximum value.
	
	for (int i = 2; i <= n; ++i) {
		for (int x = 2; x <= min (i, k + 1); ++x) {
			for (int j = x - 1; j < i; ++j) {
//				dp[i][x] = max (dp[i][x], dp[j][x - 1] + sum (j + 1, i) * sum (1, j));
				ll val = dp[j][x - 1] + sum (j + 1, i) * sum (1, j);
				if (dp[i][x] < val) {
					par[i][x] = j;
					dp[i][x] = val;
				} 
			}
		}
	}
	vector <int> cyk;
	int y = k + 1, x = n;
	while (1) {
		x = par[x][y];
		if (!x) break;
		cyk.pb (x);
	}
	cout << dp[n][k + 1] << "\n";
	assert ((int)cyk.sz == k);
	for (int i : cyk) {
//		cout << n - i - 1<< " ";
		cout << n - i << " ";
	}
	return 0;
}

Subtask #1
0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 348 KB contestant found the optimal answer: 108 == 108
2 Correct 1 ms 348 KB contestant found the optimal answer: 999 == 999
3 Runtime error 7 ms 600 KB Execution killed with signal 6
4 Halted 0 ms 0 KB -

Subtask #2
0 / 11.0

# Verdict Execution time Memory Grader output
1 Runtime error 7 ms 860 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #3
0 / 11.0

# Verdict Execution time Memory Grader output
1 Runtime error 13 ms 5724 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #4
0 / 17.0

# Verdict Execution time Memory Grader output
1 Runtime error 448 ms 8180 KB Execution killed with signal 6
2 Halted 0 ms 0 KB -

Subtask #5
0 / 21.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2062 ms 7520 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 29.0

# Verdict Execution time Memory Grader output
1 Execution timed out 2055 ms 8432 KB Time limit exceeded
2 Halted 0 ms 0 KB -