Cod sursa(job #2795206)

Utilizator mihnea134Ionescu Mihnea mihnea134 Data 6 noiembrie 2021 09:46:05
Problema Numarare triunghiuri Scor 0
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 0.5 kb
#include <fstream>
#include <algorithm>
using namespace std;
ifstream cin("nrtri.in");
ofstream cout("nrtri.out");
int v[1000];
int main()
{
    int n,i=0,j,cnt=0;
    cin>>n;
    for(;i<n;i++)
        cin>>v[i];
    sort(v,v+n);
    for(i=1;i<n-1;i++)
    {
        if(v[i-1]+v[i]>=v[i+1])
        {
            j=i+1;
            while(v[i-1]+v[i]>=v[j]&&j<n)
            {
                cnt++;
                j++;
            }
        }
    }
    cout<<cnt;
    return 0;
}