Cod sursa(job #3207475)
Utilizator | Berbece David Cristian DavidCB | Data | 26 februarie 2024 11:16:06 |
---|---|---|---|
Problema | Divk | Scor | 50 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva de probleme | Marime | 0.62 kb |
#include <fstream>
using namespace std;
ifstream fin("divk.in");
ofstream fout("divk.out");
long long a,b,i,s[500001],st,dr,T,suma,n,k,j,v[500001];
int main()
{
fin>>n>>k>>a>>b;
for(i=1;i<=n;i++)
{
fin>>v[i];
s[i]=s[i-1]+v[i];
}
for(i=a;i<=b;i++)
{
for(j=1;j<=n-i+1;j++)
{
if(j+i-1<=n)
{
st=j;
dr=j+i-1;
suma=s[dr]-s[st-1];
if(suma%k==0)
{
T++;
}
}
}
}
fout<<T;
return 0;
}