danikin · March 6, 2016 20:05
diff --git a/just_stl.cpp b/just_stl.cpp
 // sudo yum install gcc-c++
 // gcc -std=gnu++0x -DNDEBUG -O3  just_stl.cpp -lstdc++ -o just_stl
 // time ./just_stl

 #include <unordered_map>
 int main()
 {
        std::unordered_map<int, int> m;
        for (int i = 0;i < 10000000;++i)
                m[i*i] = i;
        return 0;
 }
	// sudo yum install gcc-c++
	// gcc -std=gnu++0x -DNDEBUG -O3 just_stl.cpp -lstdc++ -o just_stl
	// time ./just_stl

	#include <unordered_map>
	int main()
	{
	std::unordered_map<int, int> m;
	for (int i = 0;i < 10000000;++i)
	m[i*i] = i;
	return 0;
	}