Cod sursa(job #44298)
Utilizator | Gruia Radu RutZap | Data | 31 martie 2007 09:40:35 |
---|---|---|---|
Problema | Numarare triunghiuri | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.41 kb |
#include <stdio.h>
int main()
{
int n,v[800],j,k;
long ct=0;
freopen("nrtri.in","r",stdin);
freopen("nrtri.out","w",stdout);
scanf("%d",&n);
for (int i=1;i<=n;i++) scanf("%d",&v[i]);
for (i=1;i<n;i++)
for (j=i+1;j<=n;j++) if (v[i]>v[j]) v[i]=v[j]+v[i]-(v[j]=v[i]);
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]) ct++;
printf("%ld",ct);
return 1;
}