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Cod sursa(job #831672)
#include<fstream>
using namespace std;
int main()
{
int j,t,i,n,a,b,c,s=0,v[802]={0};
ifstream f("nrtri.in");
ofstream g("nrtri.out");
f>>n;
for (i=0;i<n;i++)
f>>v[i];
for (i=0;i<n-2;i++)
{
a=v[i];
for (j=i+1;j<n-1;j++)
{
b=v[j];
for (t=j+1;t<n;t++)
{
c=v[t];
if (a+b>=c && a+c>=b && b+c>=a) s++;
}
}
}
g<<s;
}