Cod sursa(job #2795388)
Utilizator | Data | 6 noiembrie 2021 12:05:13 | |
---|---|---|---|
Problema | Numarare triunghiuri | Scor | 70 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva de probleme | Marime | 0.66 kb |
#include <fstream>
using namespace std;
int main()
{
ifstream fin ("nrtri.in");
ofstream fout ("nrtri.out");
int n,v[801],nrt=0;
fin>>n;
for(int i=1;i<=n;i++)
{
fin>>v[i];
}
for(int i=1;i<=n-2;i++)
{
int b1=v[i];
for(int j=i+1;j<=n-1;j++)
{
int b2=v[j];
for(int g=j+1;g<=n;g++)
{
int b3=v[g];
if(b1+b2>=b3 && b2+b3>=b1 && b3+b1>=b2)
{
nrt++;
}
}
}
}
fout<<nrt;
fin.close();
fout.close();
return 0;
}