#pragma once

#include <vector>

namespace control_flow {

[[nodiscard]] auto sum_range(int from, int to) -> int;
// ReSharper disable once CppConstParameterInDeclaration
[[nodiscard]] auto factorial(const int n) -> long long pre(n >= 0);
[[nodiscard]] auto count_occurrences(const std::vector<int>& data, int target) -> int;
[[nodiscard]] auto first_index_of(const std::vector<int>& data, int target) -> int;

}  // namespace control_flow