RB2.3 Разработка своего профайлера

RobertDeMilo

Apr 15th, 2024

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#include <iostream>
#include <fstream>
#include <vector>
#include <set>
#include <chrono>
using namespace std;
using namespace std::chrono;
class LogDuration
{
public:
explicit LogDuration(const string& msg = "") : message(msg + ": "), start(steady_clock::now())
{
}
~LogDuration()
{
auto finish = steady_clock::now();
auto dur = finish - start;
cerr << message << duration_cast<milliseconds>(dur).count() << " ms" << endl;
}
private:
string message;
steady_clock::time_point start;
};
int main()
{
LogDuration total("Total");
ifstream in("input.txt");
int element_count;
in >> element_count;
set<int> elements;
/*auto start = steady_clock::now();*/
{
LogDuration input("Input");
for (int i = 0; i < element_count; ++i)
{
int x;
in >> x;
elements.insert(x);
}
}
/*auto finish = steady_clock::now();
auto dur = finish - start;
cerr << duration_cast<milliseconds>(dur).count() << " ms" << endl;*/
int query_count;
in >> query_count;
int total_found = 0;
{
LogDuration queries("Queries processing");
for (int i = 0; i < query_count; ++i)
{
int x;
in >> x;
if (elements.find(x) != elements.end())
{
++total_found;
}
}
}
cout << total_found << endl;
return 0;
}

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