upd

kr/2 copy.cpp

@@ -0,0 +1,38 @@
+#include <vector>
+#include <iostream>
+#include <algorithm>
+
+template <typename I, typename F>
+I separate(I beg, I end, F pred) {
+    auto tmp = beg;
+    while (tmp != end) {
+        std::cout << *tmp << std::endl;
+        ++tmp;
+    }
+
+
+    auto r = remove_if(beg, end, pred);
+
+    tmp = beg;
+    while (tmp != end) {
+        std::cout << *tmp << std::endl;
+        ++tmp;
+    }
+
+    std::cout << "meow" << std::endl;
+
+    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;
+
+    for (auto& item : v) {
+        std::cout << item << std::endl;
+    }
+
+    return 0;
+}