Submission #120150

#	Time	Username	Problem	Language	Result	Execution time	Memory
120150		Boxworld	Meetings (IOI18_meetings)	C++14	0 / 100	449 ms	400024 KiB

meetings

#include <bits/stdc++.h>
using namespace std; 
#include "meetings.h"
typedef long long LL;
vector<int> h;
int N,Q;
LL Dp[5010][5010];
int findmax(int l,int r){
	int M=l;
	for (int i=l;i<=r;i++)
	if(h[i]>h[M])M=i;
	return M;
}
LL dp(int l,int r){
	if(l>r)return 0;
	if (Dp[l][r]>0)return Dp[l][r];
	if(l==r)return Dp[l][r]=h[l];
	int x=findmax(l,r);
	return Dp[l][r]=min(dp(l,x-1)+h[x]*(r-x+1),dp(x+1,r)+h[x]*(x-l+1));
}
vector<LL> minimum_costs(vector<int> H,vector<int> L,vector<int> R) {
	N=H.size(),Q=L.size();
	h=H;
	vector<LL> C;
	memset(Dp,0,sizeof(Dp));
	for (int q=0;q<Q;q++){
		C.push_back(dp(L[q],R[q]));
	}
	return C;
}

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