public static final BigInteger powTen(int exponent) { if ((exponent >= 0) && (exponent < bigIntTenPow.length)) { return bigIntTenPow[exponent]; } else { return bigIntTen.pow(exponent); } }
static { // TODO: DecimalFormat uses ROUND_HALF_EVEN, not ROUND_HALF_UP // Float: precision of 7 (6 digits after .) floatFormatter = new DecimalFormat(); floatFormatter.applyPattern("0.######E0"); // Double: precision of 16 (15 digits after .) doubleFormatter = new DecimalFormat(); doubleFormatter.applyPattern("0.###############E0"); bigIntTenPow = new BigInteger[20]; bigIntMinUnscaled = new BigInteger[20]; bigIntMaxUnscaled = new BigInteger[20]; for (int i = 0; i < bigIntTenPow.length; i++) { bigIntTenPow[i] = bigIntTen.pow(i); if (i < 19) { bigIntMaxUnscaled[i] = bigIntTenPow[i].subtract(BigInteger.ONE); bigIntMinUnscaled[i] = bigIntMaxUnscaled[i].negate(); } else { bigIntMaxUnscaled[i] = BigInteger.valueOf(Long.MAX_VALUE); bigIntMinUnscaled[i] = BigInteger.valueOf(Long.MIN_VALUE); } } }
/** @param args */ public static void main(String[] args) { // array: 99*99 = 9801; BigInteger[] array = new BigInteger[9801]; int cont = 0; for (int i = 2; i < 101; i++) { BigInteger dos = new BigInteger("2"); BigInteger uno = new BigInteger("1"); for (int j = 2; j < 101; j++) { array[cont] = dos.pow(i); cont++; dos = dos.add(uno); } } for (int x = 0; x < array.length; x++) { for (int j = 1; j + x < array.length; j++) { int res = array[x].compareTo(array[x + j]); if (res == 0) { cont--; System.out.println("salto!"); break; } } } System.out.println(cont); }
public static void abcd(String str) { BigInteger sum = BigInteger.ZERO; StringBuffer n = new StringBuffer(""); for (int i = 0; i < str.length(); i++) { BigInteger ab = BigInteger.valueOf(((int) str.charAt(i)) - 96); sum = sum.add(div.pow(str.length() - i - 1).multiply(ab)); } String s = sum.toString(); for (int i = 0; i < s.length(); i++) { if (i % 3 == 0 && i != 0) n.insert(0, ","); n.insert(0, s.charAt(s.length() - i - 1)); } while (str.length() < 22) str = str + " "; System.out.println(str + "" + n); }
public static void main(String args[]) { int t; Scanner s = new Scanner(System.in); t = s.nextInt(); BigInteger b1 = new BigInteger("0"); int b2; BigInteger b3 = new BigInteger("0"); BigInteger b4 = new BigInteger("10"); while (t > 0) { b1 = s.nextBigInteger(); b2 = s.nextInt(); b3 = b1.pow(b2); System.out.println(b3.mod(b4)); t--; } s.close(); }