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Cod sursa(job #197506)
#include<iostream.h>
#include<fstream.h>
int n,nr,a[801];
int main()
{ int j,i,k;
ifstream citire("nrtri.in");
ofstream afisare("nrtri.out");
citire>>n;
for(i=0;i<n;i++)
citire>>a[i];
for(i=0;i<n-2;i++)
for(j=i+1;j<n-1;j++)
for(k=j+1;k<n;k++)
if(a[i]+a[j]>=a[k])
if(a[i]+a[k]>=a[j])
if(a[j]+a[k]>=a[i])
nr++;
afisare<<nr;
return 0;
}