Submission #729577

#	Time	Username	Problem	Language	Result	Execution time	Memory
729577		dozer	Cloud Computing (CEOI18_clo)	C++14	100 / 100	1962 ms	3688 KiB

clo

#pragma GCC optimize("O3")
#include <bits/stdc++.h>
using namespace std;
#define sp " "
#define endl "\n"
#define fastio() cin.tie(0), ios_base::sync_with_stdio(0)
#define pii pair<int, int>
#define st first
#define nd second
#define pb push_back
#define N 2005
#define L(node) node * 2
#define R(node) node * 2 + 1
#define int long long
#define M 51

int dp[2][N][M][2];
array<int, 3> cust[N], comp[N];


const int INF = 2e18 + 7;

int32_t main()
{
	fastio();

	int n;
	cin>>n;
	for (int i = 1; i <= n; i++)
		cin>>comp[i][1]>>comp[i][0]>>comp[i][2];

	int m;
	cin>>m;
	for (int i = 1; i <= m; i++)
		cin>>cust[i][1]>>cust[i][0]>>cust[i][2];

	sort(comp + 1, comp + 1 + n);
	sort(cust + 1, cust + 1 + m);

	for (int i = 1; i <= n; i++)
	{
		for (int j = 1; j <= m; j++)
		{
			for (int l = 1; l >= 0; l--)
			{
				for (int k = 0; k < M; k++)
				{
					int t1 = -INF, t2 = -INF, t3 = -INF, t4 = -INF;
					t1 = dp[1][j - 1][k][l];
					t3 = dp[0][j][k][0];

					if (l == 0 && k + comp[i][1] >= cust[j][1] && k + comp[i][1] - cust[j][1] < M && comp[i][0] >= cust[j][0])
						t2 = dp[1][j - 1][k + comp[i][1] - cust[j][1]][1] - comp[i][2] + cust[j][2];

					if (l == 0 && k + comp[i][1] < M)
						t2 = max(t2, dp[1][j][k + comp[i][1]][1] - comp[i][2]); 

					if (k >= cust[j][1] && comp[i][0] >= cust[j][0])
						t4 = dp[1][j - 1][k - cust[j][1]][l] + cust[j][2];
					int ans = max(t1, t2);
					ans = max(ans, t3);
					ans = max(ans, t4);
					dp[1][j][k][l] = ans;
				}
			}
		}

		for (int j = 1; j <= m; j++)
		{
			for (int l = 1; l >=0; l--)
			{
				for (int k = 0; k < M; k++)
					dp[0][j][k][l] = dp[1][j][k][l];
			}
		}
	}

	cout<<dp[0][m][0][0]<<endl;
	cerr<<"time taken : "<<(float)clock() / CLOCKS_PER_SEC<<" seconds\n";
}

• Subtask 1: 18 / 18
• Subtask 2: 18 / 18
• Subtask 3: 18 / 18
• Subtask 4: 18 / 18
• Subtask 5: 18 / 18
• Subtask 6: 10 / 10