Submission #1091648

#	Time	Username	Problem	Language	Result	Execution time	Memory
1091648		ASN49K	Safety (NOI18_safety)	C++14	66 / 100	2032 ms	2000 KiB

safety

#include <bits/stdc++.h>
using namespace std;
using i64=long long;
#define UNUSED -1
#define all(x) x.begin(),x.end()
#define pb push_back
const int mod=1e9+7,inf=1e9+1;
const int N=2e5;

int n,h;
int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    cin>>n>>h;
    vector<i64>b;

    i64 rez=0;
    int last_l=0,last_r=0;
    for(int i=1;i<=n;i++)
    {
        int x;
        cin>>x;
        b.insert(lower_bound(all(b) , x),x);
        b.insert(lower_bound(all(b) , x),x);
        for(int j=0;j<i;j++)
        {
            b[j]-=h;
        }
        for(int j=i;j<2*i;j++)
        {
            b[j]+=h;
        }


        //rez se schimba, intervale disjuncte
        if(i!=1)
        {
            rez+=max(last_l-x , 0);
            rez+=max(x-last_r , 0);
        }
        last_l=b[i-1],last_r=b[i];
    }
    cout<<rez;
}

• Subtask 1: 3 / 3
• Subtask 2: 4 / 4
• Subtask 3: 9 / 9
• Subtask 4: 0 / 5
• Subtask 5: 6 / 6
• Subtask 6: 11 / 11
• Subtask 7: 11 / 11
• Subtask 8: 22 / 22
• Subtask 9: 0 / 29