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feat(c++ karatsuba): measure the time taken for each method

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This commit is contained in:
newtykins 2022-01-16 02:03:51 +00:00
parent 547c38739b
commit c917c14744
1 changed files with 17 additions and 3 deletions
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20
languages/c++/code/karatsuba.cc
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@ -1,6 +1,11 @@
#include <iostream>
#include <math.h>
#include <chrono>
using namespace std;
using namespace std::chrono;
typedef high_resolution_clock Clock;
typedef Clock::time_point ClockTime;
double karatsuba(double num1, double num2) {
int num1Length = to_string((int)num1).size();
@ -37,9 +42,18 @@ int main() {
double num2;
cin >> num2;
ClockTime karatsubaBegin, karatsubaEnd;
karatsubaBegin = Clock::now();
double karatsubaResult = karatsuba(num1, num2);
double quadraticResult = num1 * num2;
karatsubaEnd = Clock::now();
double karatsubaTime = duration_cast<nanoseconds>(karatsubaEnd - karatsubaBegin).count();
cout << endl << "Quadratic Result: " + to_string(quadraticResult) << endl;
cout << "Karatsuba Result: " + to_string(karatsubaResult);
ClockTime quadraticBegin, quadraticEnd;
quadraticBegin = Clock::now();
double quadraticResult = num1 * num2;
quadraticEnd = Clock::now();
double quadraticTime = duration_cast<nanoseconds>(quadraticEnd - quadraticBegin).count();
cout << endl << "Quadratic Result: " << quadraticResult << " (" << quadraticTime << "ns)" << endl;
cout << "Karatsuba Result: " << karatsubaResult << " (" << karatsubaTime << "ns)";
}