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.*; class main { static double usedHeapPercentage() { return doublePercent(usedMemory(), maxMemory()); } static double doublePercent(double x, double y) { return doublePercentRatio(x, y); } static long usedMemory() { return Runtime.getRuntime().totalMemory()-Runtime.getRuntime().freeMemory(); } static long maxMemory() { return Runtime.getRuntime().maxMemory(); } static double doublePercentRatio(double x, double y) { return doubleRatio(x, y)*100; } static double doubleRatio(double x, double y) { return y == 0 ? 0 : x/y; } }