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| #include <functional> | |
| #include <vector> | |
| #include <iostream> | |
| using std::vector; | |
| template <typename A, typename U = std::less<>> | |
| bool f(typename vector<A>::iterator a, typename vector<A>::iterator b, U u = U()); | |
| bool Less(int a, int b) { | |
| return a < b; | |
| } | |
| int main() | |
| { | |
| std::cout << std::boolalpha; | |
| std::cout << f(vector<int>{5}.begin(), vector<int>{20}.begin()) << '\n'; | |
| } | |
| template <typename A, typename U = std::less<>> | |
| bool f(typename vector<A>::iterator a, typename vector<A>::iterator b, U u) | |
| { | |
| return u(*a, *b); | |
| } |
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