Cod sursa(job #761613)

Utilizator misinozzz zzz misino Data 26 iunie 2012 20:02:36
Problema Numarare triunghiuri Scor 100
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.34 kb
Raporteaza aceasta sursa 
#include<fstream>
#include<algorithm>
using namespace std;
ifstream f("nrtri.in");
ofstream g("nrtri.out");
int nr,i,j,k,n,v[801];
int main()
{f>>n;
for(i=1;i<=n;++i)
	f>>v[i];
sort(v+1,v+n+1);
for(i=1;i<n;++i)
	for(j=i+1;j<n;++j)
		for(k=j+1;k<=n;++k)
			if(v[i]+v[j]>=v[k])
				++nr;
			else
				break;
g<<nr<<'\n';
return 0;
}