Cod sursa(job #1767909)
Utilizator | Data | 29 septembrie 2016 21:14:21 | |
---|---|---|---|
Problema | Divk | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.44 kb |
#include<fstream>
using namespace std;
ifstream fin("divk.in");
ofstream fout("divk.out");
unsigned long long x[500005],s,nr=0;
int main()
{
int n,k,a,b;
fin>>n>>k>>a>>b;
int i;
for(i=1;i<=n;i++)
fin>>x[i];
for(i=1;i<=n;i++)
x[i]=x[i]%k;
int j;
for(i=1;i<=n;i++){s=0;
for(j=i;j<=n;j++)
if(j-i+1<=b&&j-i+1>=a)
{
s+=x[j];
if(s%k==0)
nr++;}}
fout<<nr;}