Cod sursa(job #2610327)
Utilizator | mihnea cazan mihnea.cazan15 | Data | 4 mai 2020 18:56:44 |
---|---|---|---|
Problema | Branza | Scor | 40 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva de probleme | Marime | 0.5 kb |
#include <fstream>
using namespace std;
ifstream cin("branza.in");
ofstream cout("branza.out");
long long v[100001],d[100001];
int main()
{
long long sum=0,n,s,t,st,dr,i,p;
cin>>n>>s>>t;
st=0;
dr=-1;
for(i=0;i<n;i++)
{
cin>>v[i]>>p;
if(st<=dr&&d[st]==i-t)
st++;
while(st<=dr&&v[i]<=v[d[dr]]+s*(i-d[dr]))
dr--;
d[++dr]=i;
sum+=1LL*p*(v[d[st]]+1LL*s*(i-d[st]));
}
cout<<sum;
return 0;
}