Cod sursa(job #1744931)
| Utilizator | Data | 20 august 2016 18:57:38 | |
|---|---|---|---|
| Problema | Cautare binara | Scor | 40 |
| Compilator | cpp | Status | done |
| Runda | Arhiva educationala | Marime | 1.3 kb |
#include <iostream>
#include <fstream>
#include <algorithm>
using namespace std;
unsigned long a[100005],n,m,i,t,x,*p,y;
int main()
{
ifstream f("cautbin.in");
ofstream g("cautbin.out");
f>>n;
for(i=0;i<n;i++)
{
f>>a[i];
}
f>>m;
for(i=1;i<=m;i++)
{
f>>t>>x;
if(t==0)
{
p=upper_bound(a,a+n,x);
y=p-a-1;
if(y>=0 && y<n && a[y]==x)
{
g<<y+1<<"\n";
}
else
{
g<<-1<<"\n";
}
}
if(t==1)
{
p=upper_bound(a,a+n,x);
y=p-a-1;
if(y>=0 && y<n)
{
g<<y+1<<"\n";
}
else
{
g<<n<<"\n";
}
}
if(t==2)
{
p=upper_bound(a,a+n,x);
y=p-a-1;
if(y>=0 && y<n)
{
if(a[y]==x)
{
g<<y+1<<"\n";
}
else
{
g<<y+2<<"\n";
}
}
else
{
g<<n<<"\n";
}
}
}
return 0;
}
