Submission #923568

#	Time	Username	Problem	Language	Result	Execution time	Memory
923568		tvladm2009	Cloud Computing (CEOI18_clo)	C++17	100 / 100	1049 ms	2392 KiB

clo

#include <iostream>
#include <complex>
#include <vector>
#include <string>
#include <algorithm>
#include <cstdio>
#include <numeric>
#include <cstring>
#include <ctime>
#include <cstdlib>
#include <set>
#include <map>
#include <unordered_map>
#include <unordered_set>
#include <list>
#include <cmath>
#include <bitset>
#include <cassert>
#include <queue>
#include <stack>
#include <deque>
#include <random>
 
using namespace std;
template<typename T1, typename T2> inline void chkmin(T1 &a, T2 b) {if (a > b) a = b;}
template<typename T1, typename T2> inline void chkmax(T1 &a, T2 b) {if (a < b) a = b;}
#define files(FILENAME) read(FILENAME); write(FILENAME)
#define read(FILENAME) freopen((FILENAME + ".in").c_str(), "r", stdin)
#define write(FILENAME) freopen((FILENAME + ".out").c_str(), "w", stdout)
#define all(c) (c).begin(), (c).end()
#define sz(c) (int)(c).size()
#define left left228
#define right right228
#define y1 y1228
#define mp make_pair
#define pb push_back
#define y2 y2228
#define rank rank228
using ll = long long;
using ld = long double; 
const string FILENAME = "input";
const int MAXN = 2228;
const int MAXC = 50 * MAXN;
const ll inf = 1e18;

int n, m;
	
struct kek {
	int x;
	int y;
	int z;
	
	bool operator < (kek a) {
		return y < a.y;
	}
};

kek a[MAXN], b[MAXN];
ll dp[2][MAXC];

void addComputer(int ind) {
	dp[0][MAXC - 1] = -inf;
	for (int i = MAXC - 2; i >= 0; i--) {
		ll mx = dp[0][i + 1];
		chkmax(mx, dp[1][i]);
		chkmax(mx, dp[1][max(0, i - a[ind].x)] - a[ind].z);
		dp[0][i] = mx;
	}
	swap(dp[0], dp[1]);
}

void addCustomer(int ind) {
	dp[0][MAXC - 1] = -inf;
	for (int i = MAXC - 2; i >= 0; i--) {
		ll mx = dp[0][i + 1];
		chkmax(mx, dp[1][i]);
		if (i + b[ind].x < MAXC) {
			chkmax(mx, dp[1][i + b[ind].x] + b[ind].z);
		}
		dp[0][i] = mx;
	}
	swap(dp[0], dp[1]);
}

int main() {
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	//read(FILENAME);
	cin >> n;
	for (int i = 1; i <= n; i++) {
		cin >> a[i].x >> a[i].y >> a[i].z;
	}
	cin >> m;
	for (int i = 1; i <= m; i++) {
		cin >> b[i].x >> b[i].y >> b[i].z;
	}
	sort(a + 1, a + n + 1);
	sort(b + 1, b + m + 1);
	
	for (int i = 1; i < MAXC; i++) {
		dp[1][i] = -inf;
	}
	int j = n + 1;
	for (int i = m; i >= 1; i--) {
		while (j > 1 && a[j - 1].y >= b[i].y) {
			j--;
			addComputer(j);
		}
		addCustomer(i);
	}
	cout << dp[1][0] << '\n';
	return 0;
}

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