public void deallocate(int address) {
    int addr = address - 1; // real start of the block
    int size = memory[addr]; // size of the block

    // If possible, add to quick list.

    if (size < QLSIZE) {
      memory[addr + 1] = quickGet[size];
      quickGet[size] = addr;
      return;
    }

    // Not quick, continue normal deallocation...