Cod sursa(job #2985073)
Utilizator | Rares Petrescu Raresp | Data | 25 februarie 2023 17:03:42 |
---|---|---|---|
Problema | Numarare triunghiuri | Scor | 85 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva de probleme | Marime | 0.5 kb |
#include <iostream>
#include <fstream>
#include <algorithm>
using namespace std;
ifstream fin("nrtri.in");
ofstream fout("nrtri.out");
int v[800];
int main()
{
int n,cnt=0;
fin>>n;
for(int i=0;i<n;i++)
fin>>v[i];
sort(v,v+n);
for(int i=0;i<n;i++)
for(int j=i+1;j<n;j++)
for(int k=j+1;k<n;k++)
if(v[i]+v[j]>=v[k] && v[k]+v[j]>=v[i] && v[i]+v[k]>=v[j])
cnt++;
fout<<cnt;
return 0;
}