Submission #794131

#	Time	Username	Problem	Language	Result	Execution time	Memory
794131		NothingXD	Meetings (IOI18_meetings)	C++17	19 / 100	730 ms	216136 KiB

meetings

#include "meetings.h"
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
typedef double ld;
typedef complex<ld> point;

void debug_out(){cerr << endl;}
template<typename Head, typename... Tail>
void debug_out(Head H, Tail... T){
	cerr << H << ' ';
	debug_out(T...);
}

#define debug(...) cerr << "(" << #__VA_ARGS__ << "): ", debug_out(__VA_ARGS__)
#define F first
#define S second
#define all(x) x.begin(), x.end()
#define MP(x, y) make_pair(x, y)

const int maxn = 5e3 + 10;

int n, q;
ll h[maxn];
ll val[maxn][maxn][2];

vector<ll> minimum_costs(vector<int> H, vector<int> L, vector<int> R) {
	n = H.size();
	q = L.size();
	for (int i = 0; i < n; i++){
		h[i] = H[i];
	}
	for (int i = 0; i < n; i++){
		val[i][i][0] = val[i][i][1] = h[i];
		for (int j = i+1; j < n; j++){
			val[i][j][0] = max(val[i][j-1][0], h[j]);
		}
		for (int j = i+1; j < n; j++){
			val[i][j][0] += val[i][j-1][0];
			//debug(i, j, val[i][j][0]);
		}
		for (int j = i-1; ~j; j--){
			val[j][i][1] = max(val[j+1][i][1], h[j]);
		}
		for (int j = i-1; ~j; j--){
			val[j][i][1] += val[j+1][i][1];
		//	debug(i, j, val[i][j][1]);
		}
	}
	vector<ll> res;
	for (int i = 0; i < q; i++){
		ll ans = 1e18;
		for (int j = L[i]; j <= R[i]; j++){
			ans = min(ans, val[j][R[i]][0] + val[L[i]][j][1] - h[j]);
		}
		res.push_back(ans);
	}
	return res;
}

• Subtask 1: 4 / 4
• Subtask 2: 15 / 15
• Subtask 3: 0 / 17
• Subtask 4: 0 / 24
• Subtask 5: 0 / 40