Submission #684894

#	Time	Username	Problem	Language	Result	Execution time	Memory
684894		sidon	Cigle (COI21_cigle)	C++17	100 / 100	284 ms	196188 KiB

cigle

#include <bits/stdc++.h>
using namespace std;
#define int int64_t
#define z(X, Y) (X = max(X, Y))

signed main() {
	cin.tie(0)->sync_with_stdio(0);
	
	int N; cin >> N;
	int d[N]; for(int &i : d) cin >> i;

	int dp[N][N] {}, ans {};

	for(int i = 1; i < N; ++i) {
		int s0 {}, s1 {}, k = i - 1, cnt {};

		for(int j = i, f {}; j < N; ++j) {

			for(; k >= 0 && s0 + d[k] < s1 + d[j]; --k)
				if((s0 += d[k]) == s1) ++cnt, f = k;

			s1 += d[j];

			if(f > 0) z(dp[i][j], dp[f-1][i-1] + cnt);

			z(ans, z(dp[i][j], dp[i][j-1]));
		}

		for(int j = 1; j <= i; ++j)
			z(dp[j][i], dp[j-1][i]);
	}

	cout << ans;
}

• Subtask 1: 9 / 9
• Subtask 2: 11 / 11
• Subtask 3: 13 / 13
• Subtask 4: 15 / 15
• Subtask 5: 52 / 52