Submission #1164775

#	Time	Username	Problem	Language	Result	Execution time	Memory
1164775		MuhammadSaram	Rabbit Carrot (LMIO19_triusis)	C++20	0 / 100	76 ms	328 KiB

triusis

#include <bits/stdc++.h>

using namespace std;

// #define int long long

signed main()
{
	int n,R;
	cin>>n>>R;
	int a[n];
	set<int> se;
	for (int i=0;i<n;i++)
		cin>>a[i];
	se.insert(R);
	vector<int> v;
	for (int i=1;i<=5000;i++)
		v.push_back(i);
	int m=v.size();
	int dp[2][m],l[m];
	for (int i=0;i<m;i++)
		dp[0][i]=n+1,l[i]=max(0,i-R);
	dp[0][R-1]=1;
	if (a[0]<=R)
		dp[0][a[0]-1]=0;
	for (int i=1;i<n;i++)
	{
		int suf[m];suf[m-1]=dp[1-i%2][m-1];
		for (int j=m-2;j>=0;j--)
			suf[j]=min(suf[j+1],dp[1-i%2][j]);
		for (int j=0;j<m;j++)
			dp[i%2][j]=suf[l[j]]+(a[i]!=j-1);
	}
	int ans=dp[1-n%2][0];
	for (int i=1;i<m;i++)
		ans=min(ans,dp[1-n%2][i]);
	cout<<ans<<endl;

	return 0;
}

• Subtask 1: 0 / 14
• Subtask 2: 0 / 21
• Subtask 3: 0 / 28
• Subtask 4: 0 / 37