Cod sursa(job #1673540)
Utilizator | Data | 3 aprilie 2016 22:06:18 | |
---|---|---|---|
Problema | Numarare triunghiuri | Scor | 95 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.49 kb |
#include <iostream>
#include <fstream>
#include <algorithm>
using namespace std;
ifstream fin("nrtri.in");
ofstream fout("nrtri.out");
int n,v[801],i,j,x,rez;
int main()
{
fin>>n;
for(i=1; i<=n; i++)
fin>>v[i];
sort(v+1,v+n+1);
for(i=1; i<=n-2; i++)
for(j=i+1; j<=n-1; j++)
for(x=j+1; x<=n; x++)
if(v[x]<=v[i]+v[j])
rez++;
fout<<rez;
fin.close();
fout.close();
return 0;
}