Cod sursa(job #2986752)
Utilizator | Dumitrascu Constantin Alexandru alex_dac | Data | 1 martie 2023 00:40:30 |
---|---|---|---|
Problema | Deque | Scor | 0 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.6 kb |
#include <bits/stdc++.h>
using namespace std;
ifstream fin("deque.in");
ofstream fout("deque.out");
long long n,k,x,s;
deque<int> dq;
vector<int> v;
int main()
{
cin>>n>>k;
for(int i=1;i<=n;i++){
fin>>x;
v.push_back(x);
}
for(int i=0;i<n;i++){
while(!dq.empty() and v[dq.back()]>=v[i])
dq.pop_back();
dq.push_back(i);
if(i-dq.front()>=k)
dq.pop_front();
if(i>=k-1 and !dq.empty())
s+=v[dq.front()];
}
fout<<s;
}
/*
9 3
-7 9 2 4 -1 5 6 7 1
0 1 2 3 4 5 6 7 8
*/