Cod sursa(job #2616792)
Utilizator | Data | 19 mai 2020 23:19:33 | |
---|---|---|---|
Problema | Numarare triunghiuri | Scor | 90 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva de probleme | Marime | 0.39 kb |
#include <bits/stdc++.h>
#include <fstream>
using namespace std;
ifstream f("nrtri.in");
ofstream g("nrtri.out");
int v[800];
int main()
{
int i,j,k,nr=0,n;
f>>n;
for(i=0;i<n;i++)
f>>v[i];
sort(v,v+n);
for(i=0;i<n-1;i++)
for(j=i+1;j<n;j++)
for(k=j+1;v[k]<=(v[i]+v[j])&&k<n;k++)
nr++;
g<<nr;
return 0;
}