Cod sursa(job #96954)
Utilizator | Bogolin Vlad vladb | Data | 4 noiembrie 2007 11:50:20 |
---|---|---|---|
Problema | Numarare triunghiuri | Scor | 70 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.41 kb |
#include<fstream>
using namespace std;
int n,a[800],c;
int main()
{ int i,j,k;
ifstream fin("nrtri.in");
ofstream fout("nrtri.out");
fin>>n;
for(i=1;i<=n;i++)
fin>>a[i];
for(i=1;i<=n;i++)
for(j=i+1;j<=n;j++)
for(k=j+1;k<=n;k++)
if(a[i]<=a[j]+a[k]&&a[k]<=a[i]+a[j]&&a[j]<=a[i]+a[k]) c++;
fout<<c;
fin.close();
fout.close();
return 0;
}