-
Notifications
You must be signed in to change notification settings - Fork 3
/
fizz.cc
55 lines (46 loc) · 1.26 KB
/
fizz.cc
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
/*
Authored: [email protected]
Date: Nov 5, 2019
How to compile and run:
$ g++ -std=c++17 -O3 fizz.cc -o fizz && ./fizz 100000
Provides a friendly error message if you miss something.
*/
#include <iostream>
#include <vector>
#include <chrono>
#include <cassert>
using namespace std;
// C++ template to print vector container elements
template <typename T>
ostream& operator<<(ostream& os, const vector<T>& v)
{
os << "[";
for (size_t i = 0; i < v.size(); ++i) {
os << v[i];
if (i != v.size() - 1)
os << ", ";
}
os << "]\n";
return os;
}
vector<int> fizzbuzz(int n) {
int fizz = 0, buzz = 0, fizzbuzz = 0;
for (int i = 0; i < n; ++i) {
if (i % 6 == 0) ++fizzbuzz;
else if (i % 3 == 0) ++buzz;
else if (i % 2 == 0) ++fizz;
}
return {fizz, buzz, fizzbuzz};
}
int main(int argc, char* argv[]) {
if (argc < 2) {
cout << "Usage: fizz <count>\n eg. fizz 10000\n";
return -1;
}
auto start = chrono::high_resolution_clock::now();
cout << fizzbuzz(stoi(argv[1]));
auto end = chrono::high_resolution_clock::now();
cout << "Time taken (C++) (usec): "
<< chrono::duration_cast<std::chrono::microseconds>(end - start).count() << '\n';
return 0;
}