upd

kr/2.cpp

@@ -0,0 +1,29 @@
+#include <vector>
+// #include <iostream>
+#include <algorithm>
+
+template <typename I, typename F>
+I separate(I beg, I end, F pred) {
+    std::vector<int> mas_to;
+    std::copy_if(beg, end, std::back_inserter(mas_to), pred);
+
+    auto r = remove_if(beg, end, pred);
+    std::copy(mas_to.begin(), mas_to.end(), r);
+
+    return r;
+}
+
+// int main() {
+//     std::vector v{ 1, -2, 3, -4, 5, -6 };
+//     auto r = separate(v.begin(), v.end(), [](auto x) { return x >= 0; });
+
+//     // std::cout << std::distance(v.begin(), r) << std::endl << std::endl;
+
+//     std::cout << "meow" << std::endl;
+
+//     for (auto& item : v) {
+//         std::cout << item << std::endl;
+//     }
+
+//     return 0;
+// }