Cod sursa(job #2965075)
Utilizator | Alexandru Kelemen alexk | Data | 14 ianuarie 2023 13:31:53 |
---|---|---|---|
Problema | Numarare triunghiuri | Scor | 100 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva de probleme | Marime | 0.52 kb |
#include <fstream>
#include <algorithm>
using namespace std;
ifstream cin ("nrtri.in");
ofstream cout ("nrtri.out");
int v[803];
int main()
{
int n, cnt=0;
cin>>n;
for (int i=1; i<=n;i++)
{
cin>>v[i];
}
sort(v+1,v+n+1);
for(int i=1;i<=n;i++)
{
for(int j=i+1;j<=n;j++)
{
for(int k=j+1;k<=n;k++)
{
if (v[k]<=v[i]+v[j] && v[i]<=v[k]+v[j] && v[j]<=v[i]+v[k])
cnt++;
}
}
}
cout<<cnt;
return 0;
}