Cod sursa(job #143796)
Utilizator | Sofineti Mihai Sofineti | Data | 26 februarie 2008 21:12:59 |
---|---|---|---|
Problema | Numarare triunghiuri | Scor | 70 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.37 kb |
#include<stdio.h>
long a[800],n,i,j,k,numar;
int main()
{
freopen("nrtri.in","r",stdin);
freopen("nrtri.out","w",stdout);
scanf("%ld",&n);
for(i=0;i<n;i++)
scanf("%ld",&a[i]);
for(i=0;i<n-2;i++)
for(j=i+1;j<n-1;j++)
for(k=j+1;k<n;k++)
if((a[i]+a[j]>=a[k])&&(a[i]+a[k]>=a[j])&&(a[j]+a[k]>=a[i])) numar++;
printf("%ld",numar);
return 0;
}