Submission #138897

#	Time	Username	Problem	Language	Result	Execution time	Memory
138897		arthurconmy	Aliens (IOI16_aliens)	C++14	12 / 100	118 ms	2368 KiB

aliens

#include <bits/stdc++.h>

#ifndef ARTHUR_LOCAL
	#include "aliens.h"
#endif

using namespace std;

using ll = long long;

const int MAXN = 501;

ll dp[MAXN][MAXN];

ll take_photos(int n, int m, int k_in_question, vector<int> R, vector<int> C)
{
	for(int i=0; i<MAXN; i++)
	{
		for(int j=0; j<MAXN; j++)
		{
			dp[i][j]=1e18;
		}
	}

	dp[0][0]=0;

	for(int i=0; i<n; i++) R[i]=R[i]+1;

	R.push_back(0);

	sort(R.begin(),R.end());

	for(int i=1; i<=n; i++) // covering the first i things
	{
		for(int j=1; j<=i; j++) // with j intervals
		{ 
			for(int k=i; k>=1; k--) // the last thing considered was k (so k--i square)
			{
				dp[i][j] = min(dp[i][j], ll(R[i]-R[k]+1)*ll(R[i]-R[k]+1) + dp[k-1][j-1]);
			}

			// cout << i << " " << j << " " << dp[i][j] << endl;
		}
	}

	ll ans = 1e18;

	for(int j=1; j<=k_in_question; j++)
	{
		ans = min(ans,dp[n][j]);
	}

	return ans;
}

#ifdef ARTHUR_LOCAL
	int main()
	{
		vector<int> V = {1,2};

		cout << take_photos(2,10,1,V,V) << endl;
	}
#endif

• Subtask 1: 0 / 4
• Subtask 2: 12 / 12
• Subtask 3: 0 / 9
• Subtask 4: 0 / 16
• Subtask 5: 0 / 19
• Subtask 6: 0 / 40