Submission #1039496

#	Time	Username	Problem	Language	Result	Execution time	Memory
1039496		vjudge1	Meetings (IOI18_meetings)	C++17	19 / 100	332 ms	238564 KiB

meetings

#include "meetings.h"
#include<bits/stdc++.h>
using namespace std;
#define K 5010
long long gol[K][K],gor[K][K];
vector<long long> minimum_costs(vector<int> H, vector<int> L,vector<int> R) {
    int Q=L.size(),N=H.size();
    vector<long long>C(Q),h;
    for(auto i:H)h.push_back(i);
    for(int i=0;i<N;i++)
        gol[i][i]=gor[i][i]=H[i];
    for(int i=0;i<N;i++)
        for(int j=i+1;j<N;j++)
            gor[i][j]=max(gor[i][j-1],h[j]);
    for(int i=0;i<N;i++)
        for(int j=i-1;~j;j--)
            gol[i][j]=max(gol[i][j+1],h[j]);
    for(int i=0;i<N;i++)
        for(int j=i+1;j<N;j++)
            gor[i][j]+=gor[i][j-1];
    for(int i=0;i<N;i++)
        for(int j=i-1;~j;j--)
            gol[i][j]+=gol[i][j+1];
    for (int i=0;i<Q;i++) {
        C[i]=1e18;
        for(int j=L[i];j<=R[i];j++)
            C[i]=min(C[i],gol[j][L[i]]+gor[j][R[i]]-H[j]);
    }
    return C;
}

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