Cod sursa(job #2264782)
Utilizator | Data | 20 octombrie 2018 11:40:26 | |
---|---|---|---|
Problema | Deque | Scor | 60 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.59 kb |
#include <iostream>
#include <cstdio>
#include <deque>
using namespace std;
int n, k, a[5000001];
long long s;
deque <int> d;
int main()
{
freopen("deque.in", "r", stdin);
freopen("deque.out", "w", stdout);
scanf("%d%d", &n, &k);
for(int i = 1; i <= n; i++)
scanf("%d", &a[i]);
for(int i = 1; i <= n; i++){
while(!d.empty() && a[d.back()] >= a[i])
d.pop_back();
d.push_back(i);
if(i - d.front() == k) d.pop_front();
if(i >= k) s += a[d.front()];
}
printf("%lld", s);
return 0;
}