Pagini recente » Cod sursa (job #1826544) | Cod sursa (job #1373790) | Cod sursa (job #2724943) | Cod sursa (job #1794917) | Cod sursa (job #1942989)
#include<fstream>
using namespace std;
ifstream fin("cautbin.in");
ofstream fout("cautbin.out");
int a[100003],n;
int cautbin1(int value)
{
int l=1,r=n,mid,sol=-1;
while(l<=r)
{
mid=(l+r)/2;
if(a[mid]<value)
l=mid+1;
else if(a[mid]>value)
r=mid-1;
else
{
sol=mid;
l=mid+1;
}
}
return sol;
}
int cautbin2(int value)
{
int l=1,r=n,mid,i,sol;
while(l<=r)
{
mid=(l+r)/2;
if(a[mid]<=value)
{
sol=mid;
l=mid+1;
}
else
r=mid-1;
}
return sol;
}
int cautbin3(int value)
{
int l=1,r=n,mid,i,sol;
mid=(1+n)/2;
while(l<=r)
{
if(a[mid]>=value)
{
sol=mid;
r=mid-1;
}
else
l=mid+1;
mid=(l+r)/2;
}
return sol;
}
int main()
{
int i,m,x,p;
fin>>n;
for(i=1; i<=n; i++)
fin>>a[i];
fin>>m;
for(i=1; i<=m; i++)
{
fin>>p>>x;
if(p==0)
fout<<cautbin1(x)<<'\n';
else if(p==1)
fout<<cautbin2(x)<<'\n';
else
fout<<cautbin3(x)<<'\n';
}
}