shihongzhi shihongzhi

## stop_watch.inl
#include <sys/time.h>                // for gettimeofday()

class StopWatch {
  timeval     started;
  std::string msg;

public:
  StopWatch(const std::string& m): msg(m)
    { gettimeofday(&started, NULL); }

## tree.md

      
        
          
            
              
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                shihongzhi
                / tree.md
            
            
              Created
              June 18, 2012 05:19
                — forked from hrldcpr/tree.md
            
              
                one-line tree in python
              
          
        
      
        
  
      
    One-line Tree in Python

Using Python's built-in defaultdict we can easily define a tree data structure:
def tree(): return defaultdict(tree)
That's it!
	#include <sys/time.h> // for gettimeofday()

	class StopWatch {
	timeval started;
	std::string msg;

	public:
	StopWatch(const std::string& m): msg(m)
	{ gettimeofday(&started, NULL); }