mobile typing isn't scored — practice only
std::vector<int> filterEvens(const std::vector<int>& v) {
C++ · general · type the snippet below to practice
def fib(n):
a, b = 0, 1
for _ in range(n):
a, b = b, a + b
return a
about this snippet
This is the lambda snippet in C++ — 11 lines of real C++ code that exercises common patterns you'll see in production. DeveloperType scores you on net WPM and accuracy and only counts runs above 95% accuracy on the leaderboard, so practice rewards precision, not speed alone.
view source (11 lines)
#include <algorithm>
#include <vector>
std::vector<int> filterEvens(const std::vector<int>& v) {
std::vector<int> result;
std::copy_if(v.begin(), v.end(),
std::back_inserter(result),
[](int x) { return x % 2 == 0; });
return result;
}
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