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Cod sursa(job #901249)
#include <iostream>
#include <fstream>
using namespace std;
int v[100001];
int main()
{
int n,m,i,tip,a,st,dr,mij;
ifstream f("cautbin.in");
ofstream g("cautbin.out");
f>>n;
for(i=1;i<=n;i++)
{
f>>v[i];
}
f>>m;
for(i=1;i<=m;i++)
{
f>>tip>>a;
st=1;
dr=n+1;
if(tip==0)
{
while(dr-st>1)
{
mij=(dr+st)/2;
if(a>=v[mij])
{
st=mij;
}
else dr=mij;
}
if(a==v[st])g<<st<<'\n';
if(a==v[dr])g<<dr<<'\n';
if(a!=v[st] && a!=v[dr])g<<"-1"<<'\n';
}
if(tip==1)
{
st=1;
dr=n+1;
while(dr-st>1)
{
mij=(dr+st)/2;
if(a>=v[mij])
{
st=mij;
}
else dr=mij;
}
g<<st<<'\n';
}
if(tip==2)
{
st=1;
dr=n+1;
while(dr-st>1)
{
mij=(dr+st)/2;
if(a<=v[mij])
{
dr=mij;
}
else st=mij;
}
g<<dr<<'\n';
}
}
return 0;
}