Submission #962515

#	Time	Username	Problem	Language	Result	Execution time	Memory
962515		MinaRagy06	Aliens (IOI16_aliens)	C++17	12 / 100	141 ms	2396 KiB

aliens

#include <bits/stdc++.h>
#include "aliens.h"
#ifdef MINA
#include "grader.cpp"
#endif
using namespace std;
#define ll long long
#define sz(x) (int) x.size()

ll take_photos(int n, int crap, int m, vector<int> R, vector<int> C) {
	array<ll, 2> a[n + 1];
	vector<ll> v;
	for (int i = 1; i <= n; i++) {
		a[i] = {R[i - 1], C[i - 1]};
		if (a[i][0] > a[i][1]) swap(a[i][0], a[i][1]);
	}
	sort(a + 1, a + n + 1);
	ll dp[m + 1][n + 1];
	memset(dp, '?', sizeof dp);
	for (int j = 0; j <= m; j++) {
		dp[j][0] = 0;
	}
	for (int j = 1; j <= m; j++) {
		for (int i = 1; i <= n; i++) {
			ll mx = -1e18;
			for (int k = i; k >= 1; k--) {
				mx = max(mx, a[k][1]);
				ll c = (mx - a[k][0] + 1) * (mx - a[k][0] + 1);
				if (i + 1 <= n && mx >= a[i + 1][0]) {
					c -= (mx - a[i + 1][0] + 1) * (mx - a[i + 1][0] + 1);
				}
				dp[j][i] = min(dp[j][i], dp[j - 1][k - 1] + c);
//				cout << k << " to " << i << ": " << c << '\n';
			}
		}
	}
	return dp[m][n];
}

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