Mai intai trebuie sa te autentifici.
Cod sursa(job #1837883)
Utilizator | Data | 30 decembrie 2016 15:50:36 | |
---|---|---|---|
Problema | Cautare binara | Scor | 60 |
Compilator | cpp | Status | done |
Runda | Arhiva educationala | Marime | 0.96 kb |
#include <iostream>
#include <fstream>
using namespace std;
ifstream f("cautbin.in");
ofstream g("cautbin.out");
int i,j,n,m,k,t,p,r;
int* v;
int cauta(int s,int d,int caz,int val)
{
int m;
while(s<d)
{
m=(s+d)/2;
if(v[m]>val)
d=m;
else
s=m+1;
}
if(caz==0)
{
if(v[m]>val)
m--;
if(v[m]==val)
return m;
}
else
if(caz==1)
{
if(v[m]>val)
m--;
return m;
}
else
if(caz==2)
{
while(v[m]>=val)
{
m--;
}
return m+1;
}
return -1;
}
int main()
{
f>>n;
v=new int[n+4];
for(i=1;i<=n;i++)
f>>v[i];
f>>p;
while(p!=0)
{
f>>i>>j;
g<<cauta(1,n,i,j)<<"\n";
p--;
}
}