Submission #1002800

#	Time	Username	Problem	Language	Result	Execution time	Memory
1002800		Lalic	Cigle (COI21_cigle)	C++17	0 / 100	222 ms	497496 KiB

cigle

#include <bits/stdc++.h>
using namespace std;

#define fi first
#define se second
#define pb push_back
#define all(x) x.begin(), x.end()
#define allr(x) x.rbegin(), x.rend()
#define mp make_pair
#define int long long

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef complex<double> cd;

const int MAXN = 1e5+10;
const int MOD = 1e9+7;
const int INF = 0x3f3f3f3f;
const ll LINF = 0x3f3f3f3f3f3f3f3f;
const double PI = acos(-1);

int dp[505][505][505];

void solve(){
	int n; cin >> n;
	
	vector<int> arr(n+1); arr[0]=0;
	for(int i=1;i<=n;i++) cin >> arr[i];
	
	for(int i=3;i<=n;i++){
		int sum=arr[i];
		
		for(int c1=i-1;c1>=0;c1--){
			int tot=arr[c1], best=0;
			bool ok=0;
			
			for(int c2=c1-1;c2>=0;c2--){
				if(ok && tot>sum) dp[i][c1][c2]=dp[i-1][c1][c2]+1;
				else if(tot==sum) ok=1;
				else dp[i][c1][c2]=dp[i-1][c1][c2];
				
				tot+=arr[c2];
				best=max(best, dp[i-1][c1][c2]);
			}
			
			sum+=arr[c1];
			dp[i][i][c1]=best;
		}
	}
	
	int ans=0;
	for(int i=0;i<n;i++) ans=max(ans, dp[n][n][i]);
	
	cout << ans << "\n";
}
	

int32_t main(){
	ios_base::sync_with_stdio(false); cin.tie(NULL);
	
	int tt=1;
	//~ cin >> tt;
	while(tt--) solve();
	return 0;
}

• Subtask 1: 0 / 9
• Subtask 2: 0 / 11
• Subtask 3: 0 / 13
• Subtask 4: 0 / 15
• Subtask 5: 0 / 52