#include <cassert>
#include <complex>
#include <inplace_vector>
#include <numeric>
#include <print>
int main()
{
std::inplace_vector<int, 10> v(10, 0);
std::ranges::iota(v, 0);
std::println("Initially, v = {}", v);
auto erased = std::erase(v, 3);
std::println("After erase(v, 3), v = {}", v);
assert(erased == 1);
erased = std::erase_if(v, [](int x) { return x % 2 == 0; });
std::println("After erasing all even numbers, v = {}", v);
std::println("Erased even numbers: {}", erased);
std::inplace_vector<std::complex<double>> nums{{2, 2}, {4, 2}, {4, 8}, {4, 2}};
std::erase(nums, {4, 2}); // since U = T, the value type can be ommited
std::println("After erase {4, 2}, nums = {}", nums);
}
Initially, v = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
After erase(v, 3), v = [0, 1, 2, 4, 5, 6, 7, 8, 9]
After erasing all even numbers, v = [1, 5, 7, 9]
Erased even numbers: 5
After erase {4, 2}, nums = [(2,2), (4,8)]
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