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Cod sursa(job #437088)
/*
* File: main.cpp
* Author: VirtualDemon
*
* Created on April 9, 2010, 11:39 AM
*/
#include <cstdlib>
#include <fstream>
#define Nmax 100111
/*
*
*/
using namespace std;
int main(int argc, char** argv)
{
int v[Nmax];
int N, M, i, j, left, right, middle, p;
ifstream in( "cautbin.in" );
ofstream out( "cautbin.out" );
in>>N;
for( i=1; i <= N; in>>v[i], ++i );
for( in>>M; M; --M )
{
in>>i>>j;
p=-1; left=1; right=N;
if( !i )
{
while( left <= right )
{
middle=left+(right-left)/2;
if( j == v[middle] )
{
for( p=left; j == v[p+1]; ++p );
break;
}
if( j <= v[middle] )
right=middle-1;
else left=middle+1;
}
}
else if( 1 == i )
{
while( left <= right )
{
middle=left+(right-left)/2;
if( j < v[middle] )
right=middle-1;
else p=middle, left=middle+1;
}
}
else {
while( left <= right )
{
middle=left+(right-left)/2;
if( j <= v[middle] )
p=middle, right=middle-1;
else left=middle+1;
}
}
out<<p<<'\n';
}
return EXIT_SUCCESS;
}