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Cod sursa(job #663010)
#include<fstream>
using namespace std;
ifstream f("nrtri.in");
ofstream g("nrtri.out");
int main()
{
int s[800],i,j,k,n,c=0,t;
f>>n;
for(i=1;i<=n;i++)
f>>s[i];
for(i=1;i<=n;i++)
for(j=1;j<=n;j++)
{
if(s[i]<s[j])
{
t=s[i];
s[i]=s[j];
s[j]=t;
}
for(i=1;i<=n-2;i++)
for(j=i+1;j<=n-1;j++)
for(k=j+1;k<=n;k++)
if(s[i]+s[j]>=s[k])
c++;
g<<c;
f.close();
g.close();
return 0; }