import java.util.*; import java.util.zip.*; import java.util.List; import java.util.regex.*; import java.util.concurrent.*; import java.util.concurrent.atomic.*; import java.util.concurrent.locks.*; import javax.swing.*; import javax.swing.event.*; import javax.swing.text.*; import javax.swing.table.*; import java.io.*; import java.net.*; import java.lang.reflect.*; import java.lang.ref.*; import java.lang.management.*; import java.security.*; import java.security.spec.*; import java.awt.*; import java.awt.event.*; import java.awt.image.*; import javax.imageio.*; import java.math.*; /** Return the least power of two greater than or equal to the specified value. * *
Note that this function will return 1 when the argument is 0. * * @param x a long integer smaller than or equal to 262. * @return the least power of two greater than or equal to the specified value. */ class main { static long nextPowerOfTwo( long x ) { if ( x == 0 ) return 1; x--; x |= x >> 1; x |= x >> 2; x |= x >> 4; x |= x >> 8; x |= x >> 16; return ( x | x >> 32 ) + 1; }}