Cod sursa(job #2694296)
Utilizator | Streche Andrei Claudiu AndreiStrehe | Data | 8 ianuarie 2021 18:41:56 |
---|---|---|---|
Problema | Numarare triunghiuri | Scor | 75 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva de probleme | Marime | 0.88 kb |
#include <fstream>
using namespace std;
ifstream f("nrtri.in");
ofstream g("nrtri.out");
int laturi[805];
int nrtri,i,x;
int n,ok,k,j,a;
int main()
{
f>>n;
for(i=1;i<=n;i++)
{
f>>laturi[i];
}
while(ok==0)
{
ok=1;
for(i=2;i<=n;i++)
{
if(laturi[i]<laturi[i-1])
{
ok=0;
x=laturi[i];
laturi[i]=laturi[i-1];
laturi[i-1]=x;
}
}
}
for(i=1;i<=n-2;i++)
{
for(j=i+1;j<=n-1;j++)
{
for (k=j+1;k<=n;k++)
{
if(laturi[i]+laturi[j]>=laturi[k] && laturi[i]+laturi[k]>=laturi[j] && laturi[k]+laturi[j]>=laturi[i])
{
nrtri++;
}
}
}
}
g<<nrtri;
}