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Cod sursa(job #442324)
#include<fstream>
#include<iostream>
#include<cstdio>
#define maxn 100002
#define INFI 2147483647
using namespace std;
int n, m, v[maxn], rez;
int cauta(int x)
{
int st=1, dr=n, mij, rez=st;
while(st<dr)
{
mij=(st+dr)/2;
if(v[mij]<=x)
rez=mij, st=mij+1;
else
dr=mij-1;
}
return rez;
}
void cauta2(int x, int st , int dr)
{
int mij=(st+dr)/2;
if(v[mij]>=x)
{
//printf("%d %d\n", mij, reZ);
if(mij<rez)
{
rez=mij;
}
if(st<mij)
cauta2(x, st, mij-1);
}
else if(st<dr)
cauta2(x, mij+1, dr);
}
int main()
{
int i, op, x, rezz;
ifstream fin("cautbin.in");
freopen("cautbin.out", "w", stdout);
fin>>n;
for(i=1;i<=n;++i)
fin>>v[i];
fin>>m;
for(i=1;i<=m;++i)
{
fin>>op>>x;
if(!op)
{
rezz=cauta(x);
if(v[rezz]==x)
printf("%d\n", rezz);
else
printf("-1\n");
}
else if(op==1)
printf("%d\n", cauta(x));
else
{
rez=INFI;
cauta2(x, 1, n);
printf("%d\n", rez);
}
}
return 0;
}