Cod sursa(job #96393)
Utilizator | Data | 1 noiembrie 2007 12:04:43 | |
---|---|---|---|
Problema | Numarare triunghiuri | Scor | 0 |
Compilator | cpp | Status | done |
Runda | Arhiva de probleme | Marime | 0.48 kb |
#include<stdio.h>
int main(){
int v[801],n,s,i,j,k;
freopen("nrtri.in","r",stdin);
freopen("nrtri.out","w",stdout);
scanf("%d",&n);
for (i=1;i<n+1;++i)
scanf("%d ",&v[i]);
s=0;
for (i=1;i<n+1;++i)
for (j=1;j<n+1;++j)
for (k=1;k<n+1;++k){
if(i==j) || (i==k) || (j==k){
}
else {
if(v[i]+v[j]>=v[k])&&(v[i]+v[k]>=v[j])&&(v[k]+v[j]>=v[i])
s=s+1;
}
}
s=s/3;
printf("%d\n",s);
fclose(stdin);
fclose(stdout);
return 0;
}