error 3a 27std 3a 3ahigh resolution clock 27 has not been declared

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Miguel Ángel
08 May 2016
1#include <chrono>
2using std::chrono::high_resolution_clock;
3using std::chrono::microseconds;
4using std::chrono::duration_cast;
5
6auto start = high_resolution_clock::now();
7rd(n);
8auto stop = high_resolution_clock::now();
9auto duration = duration_cast<microseconds>(stop-start);
10std::cout << duration.count() << std::endl;
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error 3a 27std 3a 3ahigh resolution clock 27 has not been declarederror 3a 27std 3a 3ahigh resolution clock 27 has not been declared