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Cod sursa(job #704310)
#include <fstream>
using namespace std;
ifstream f("nrtri.in");
ofstream g("nrtri.out");
int n,v[801],i,j,p,s=0,aux,a[30001];
int main()
{f>>n;
for(i=1;i<=n;i++)
f>>v[i];
for(i=1;i<=n-1;i++)
{
for(j=i+1;j<=n;j++)
{
if(v[j]<v[i])
{
aux=v[i];
v[i]=v[j];
v[j]=aux;
}
}
}
for(i=1;i<=n-2;i++)
{for(j=i+1;j<=n-1;j++)
{for(p=j+1;p<=n;p++)
{if(v[i]+v[j]>=v[p])
s++;
}
}
}
g<<s;
return 0;
}