Submission #872776

#	Time	Username	Problem	Language	Result	Execution time	Memory
872776		Danet	Holding (COCI20_holding)	C++14	22 / 110	1 ms	860 KiB

holding

#include<bits/stdc++.h>
using namespace std;
#pragma GCC optimize("O3")

#define tof_io  ios_base::sync_with_stdio(false);cin.tie(0) , cout.tie(0);
#define double  long double
#define int     long long
#define pb      push_back

#define all(x)  x.begin(),x.end()
#define endl    '\n'

const int mod = 998244353; //998244353 1e9+7 1e9+9
const int inf = 1e18;
const int N = 	60 + 23;	
const int lg = 23;
int fac[N];
int inv[N];
int  dnt_pow	(int a, int b, int md = mod){int ans = 1; while(b){if(b&1){ans = (a*ans)%md;}a = (a*a)%md;b >>= 1;}return ans ;}
void dnt_bld	(){fac[0] = 1; inv[0] = dnt_pow(fac[0],mod-2) ;for(int i = 1 ; i < N ; i++) {fac[i] = (fac[i-1] * i) % mod;inv[i] = dnt_pow( fac[i] , mod-2);}}
int  dnt_ncr	(int r,int n){if(r>n) return 0; return fac[n] * inv[r] % mod * inv[n-r] % mod;}
bool cmp (pair<int,int> a, pair<int,int> b){ return a.second > b.second; }
int dp[N][1000][N];
int n , k;
int L = 0;
int R = 0;
int ans = 0;
int32_t main()
{
    cin >> n >> L >> R >> k;
	vector<int> a(n+1);
    for(int i = 1; i <= n; i++) 
	{
		cin >> a[i];
	}
	k = min(k, n * n / 4);
	for(int i = L; i <= n; i++)
	{
		for(int j = 1; j <= k; j++)
		{
			for(int i2 = L - 1; i2 > 0; i2--)
			{
				dp[i][j][i2] = max(dp[i][j][i2], dp[i - 1][j][i2]);
				dp[i][j][i2] = max(dp[i][j][i2], dp[i][j][i2 - 1]);
				if(j - i + i2 >= 0)
				{
					dp[i][j][i2] = max(dp[i][j][i2], dp[i - 1][j - i + i2][i2 - 1] + a[i] - a[i2]);
				}
				ans = max(ans, dp[i][j][i2]);
			}
		}
	}
	for(int i = L; i <= n; i++) ans = ans - a[i];
    cout << abs(ans);
}

• Subtask 1: 22 / 22
• Subtask 2: 0 / 33
• Subtask 3: 0 / 33
• Subtask 4: 0 / 22