Advertisement
Not a member of Pastebin yet?
Sign Up,
it unlocks many cool features!
- #include <iostream>
- #include <vector>
- #include <algorithm>
- using iter = std::vector<int>::iterator;
- iter partition(iter begin, iter end, int predicut) {
- while (begin != end) {
- while (predicut > *begin) {
- ++begin;
- if (begin == end) {
- return begin;
- }
- }
- do {
- --end;
- if (begin == end) {
- return begin;
- }
- } while (predicut <= *end);
- std::swap(*begin, *end);
- ++begin;
- }
- return begin;
- }
- int main() {
- int a, b, pr;
- std::vector<int> v;
- std::cin >> a;
- if (a != 0) {
- for (int i = 0; i < a; i++) {
- std::cin >> b;
- v.push_back(b);
- }
- std::cin >> pr;
- iter end = partition(v.begin(), v.end(), pr);
- int s = end - v.begin();
- std::cout << s << '\n';
- std::cout << a - s;
- } else {
- std::cin >> b;
- std::cout << 0 << '\n';
- std::cout << 0;
- }
- }
Advertisement
Add Comment
Please, Sign In to add comment
Advertisement