Cod sursa(job #573202)

Utilizator valentina506Moraru Valentina valentina506 Data 5 aprilie 2011 23:55:43
Problema Numarare triunghiuri Scor 70
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.34 kb
Raporteaza aceasta sursa 
#include<fstream>
#include<algorithm>
using namespace std;
int n,i,j,k,nr,a[151],s;
int main()
{
	ifstream f("nrtri.in");
	ofstream g("nrtri.out");
	f>>n;
	for(i=1;i<=n;i++)
		f>>a[i];
	sort(a,a+n+1);
	
	for(i=1;i<n-1;i++)
		for(j=i+1;j<n;j++)
			for(k=j+1;k<=n;k++)
				if(a[i]+a[j]>=a[k])
					nr++;
				
		g<<nr;
		return 0;
}