Cod sursa(job #3212094)
Utilizator | Data | 11 martie 2024 09:21:28 | |
---|---|---|---|
Problema | Cautare binara | Scor | 0 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 1.91 kb |
#include <bits/stdc++.h>
using namespace std;
ifstream fin ("cautbin.in");
ofstream fout ("cautbin.out");
int n, m;
int cautat[100005];
int c[100005];
int x[100005];
int v[100005];
int main()
{
fin>>n;
for (int i=1; i<=n; ++i)
{
fin>>v[i];
}
fin>>m;
for (int i=1;i<=m; ++i)
{
cautat[i]=-1;
fin>>c[i]>>x[i];
if (c[i]==0)
{
int st, dr, mijl;
st=1;
dr=n;
while (st<dr)
{
mijl=(st+dr)/2;
if (v[mijl]==x[i])
{
cautat[i]=mijl;
st=mijl+1;
}
else if (v[mijl]>x[i])
{
dr=mijl-1;
}
else if (v[mijl]<x[i])
{
st=mijl+1;
}
}
}
else if (c[i]==1)
{
int st, dr, mijl;
st=1;
dr=n;
while (st<dr)
{
mijl=(st+dr)/2;
if (v[mijl]>x[i])
{
dr=mijl-1;
}
else if (v[mijl]<=x[i])
{
cautat[i]=mijl;
st=mijl+1;
}
}
}
else
{
int st, dr, mijl;
st=1;
dr=n;
while (st<dr)
{
mijl=(st+dr)/2;
if (v[mijl]>x[i])
{
cautat[i]=mijl;
dr=mijl-1;
}
else if (v[mijl]<x[i])
{
st=mijl+1;
}
}
}
}
for (int i=1; i<=m; ++i)
{
fout<<cautat[i];
}
return 0;
}