Submission #555696

#	Time	Username	Problem	Language	Result	Execution time	Memory
555696		fuad27	Aliens (IOI16_aliens)	C++17	16 / 100	159 ms	2264 KiB

aliens

#include "aliens.h"
#include<bits/stdc++.h>
using namespace std;
const long long INF = 1e18;
long long take_photos(int n, int m, int k, std::vector<int> r, std::vector<int> c) {
	if(c==r) {
	for(int i = 0;i<n;i++) {
		if(c[i] < r[i]) {
			swap(c[i], r[i]);
		}
	}
	vector<pair<int,int>> pts;
	for(int i = 0;i<n;i++) {
		pts.push_back({c[i], r[i]});
	}
	sort(pts.begin(), pts.end());
	long long dp[n+1][k+1];
	dp[0][0] = 0;
	for(int i = 1;i<=n;i++) {
		dp[i][0] = INF;
	}
	for(int i = 0;i<=k;i++)dp[0][i] = 0;
	for(int i = 1;i<=n;i++) {
		for(int j = 1;j<=k;j++) {
			int  mx = 0;
			dp[i][j] = INF;
			for(int z = i;z>=1;z--) {
				mx = max(mx, pts[i-1].first-pts[z-1].second+1);
				dp[i][j] = min(dp[i][j], dp[z-1][j-1] + mx*mx);
			}
		}
		}
		return dp[n][k];
	}
	else {
		for(int i = 0;i<n;i++) {
			if(c[i] < r[i]) {
				swap(c[i], r[i]);
			}
		}
		vector<vector<bool>> v(m, vector<bool> (m, 0));
		for(int i = 0;i<n;i++) {
			for(int f = min(r[i], c[i]);f<=max(r[i], c[i]);f++) {
				for(int j = min(r[i], c[i]);j<=max(r[i], c[i]);j++) {
					v[f][j] = 1;
				}
			}
		}
		long long ans = 0;
		for(int i = 0;i<m;i++) {
			for(int j = 0;j<m;j++) {
				if(v[i][j]) {
					ans++;
				}
			}
		}
		return ans;
	}
}

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