Cod sursa(job #574722)

Utilizator informatician28Andrei Dinu informatician28 Data 7 aprilie 2011 14:39:07
Problema Numarare triunghiuri Scor 70
Compilator cpp Status done
Runda Arhiva de probleme Marime 0.31 kb
Raporteaza aceasta sursa 
#include<fstream> 
using namespace std; 
int main() 
{ifstream f("nrtri.in"); 
ofstream g("nrtri.out"); 
int n,v[801],nr=0,i,j,k; 
f>>n; 
for(i=1;i<=n;i++) f>>v[i]; 
sort(v+1,v+n+1);
for(i=1;i<n-1;i++) 
	for(j=i+1;j<n;j++) 
		for(k=j+1;k<=n;k++) 
		{if(v[i]+v[j]>=v[k]) 
			nr++;}
		g<<nr;
		return 0; 
}