Submission #1067857

#	Time	Username	Problem	Language	Result	Execution time	Memory
1067857		Muhammad_Aneeq	Meetings (IOI18_meetings)	C++17	19 / 100	1510 ms	786432 KiB

meetings

#include <vector>
using namespace std;
vector<long long> minimum_costs(vector<int> H, vector<int> L,vector<int> R)
{
    int n=H.size();
    vector<long long>ans(L.size(),1e15);
    vector<int>qu[n]={};
    for (int i=0;i<L.size();i++)
    {
        for (int j=L[i];j<=R[i];j++)
            qu[j].push_back(i);
    }
    int val[n]={};
    long long pre[n+1]={};
    for (int i=0;i<n;i++)
    {
        if (qu[i].size()==0)
            continue;
        int mx=H[i];
        val[i]=mx;
        for (int j=i-1;j>=0;j--)
        {
            mx=max(mx,H[j]);
            val[j]=mx;
        }
        mx=H[i];
        for (int j=i+1;j<n;j++)
        {
            mx=max(mx,H[j]);
            val[j]=mx;
        }
        for (int j=1;j<=n;j++)
            pre[j]=pre[j-1]+val[j-1];
        for (auto j:qu[i])
            ans[j]=min(ans[j],pre[R[j]+1]-pre[L[j]]);
    }
    return ans;
}

Compilation message (stderr)

meetings.cpp: In function 'std::vector<long long int> minimum_costs(std::vector<int>, std::vector<int>, std::vector<int>)':
meetings.cpp:8:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
    8 |     for (int i=0;i<L.size();i++)
      |                  ~^~~~~~~~~

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