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Cod sursa(job #273668)
#include <fstream.h>
#define nmax 100005
ifstream fin("cautbin.in");
ofstream fout("cautbin.out");
long x,m,y,n,a[nmax];
int caut (int x)
{int i, step;
for (step=1;step<n;step<<=1);
for (i=0;step;step>>=1)
if (i+step<n && a[i+step]<=x)
i+=step;
return i;
}
int main()
{int i,k;
fin>>n;
for (i=1;i<=n;i++) fin>>a[i];
fin>>m;
for (i=1;i<=m;i++)
{fin>>y>>x;
k=caut(x);
if (y==0)
if (a[k]==x) fout<<k<<'\n';
else
fout<<-1<<'\n';
if (y==1)
{for (;a[k]>x;k--);
fout<<k<<'\n';
}
if (y==2)
{for (;a[k]<x;k++);
fout<<k<<'\n';
}
}
fout.close();
return 0;
}