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Cod sursa(job #460141)
#include <cstdlib>
#include <fstream>
#define Nmax 100111
/*
*
*/
int main( void )
{
int v[Nmax];
int N, M, i, j, z, left, right, middle;
std::ifstream in( "cautbin.in" );
in>>N;
for( i=1; i <= N; ++i )
in>>v[i];
std::ofstream out( "cautbin.out" );
for( in>>M; M; --M )
{
in>>i>>j;
z=-1;
left=1; right=N;
while( left <= right )
{
middle=left+(right-left)/2;
if( 0 == i )
{
if( j == v[middle] )
{
for( z=middle; j == v[z+1]; ++z );
break;
}
if( j <= v[middle] )
right=middle-1;
else left=middle+1;
}
else if( 1 == i )
{
if( j >= v[middle] )
{
for( z=middle; j >= v[z+1]; ++z );
break;
left=middle+1;
}
else right=middle-1;
}
else if( 2 == i )
{
if( j <= v[middle] )
{
for( z=middle; j <= v[z-1]; --z );
break;
right=middle-1;
}
else left=middle+1;
}
}
out<<z<<'\n';
}
return EXIT_SUCCESS;
}