Pagini recente » Cod sursa (job #1971109) | Cod sursa (job #2889227) | Cod sursa (job #499524) | Cod sursa (job #477422) | Cod sursa (job #2871409)
#include <fstream>
#include <vector>
using namespace std;
constexpr auto kMaxLen = 500'000;
int vec[kMaxLen];
int Partition(int left, int right) {
auto mid = (left + right) / 2;
auto pivot = vec[mid];
auto i = left - 1;
auto j = right + 1;
while (true) {
do {
i += 1;
} while (vec[i] < pivot);
do {
j -= 1;
} while (vec[j] > pivot);
if (i >= j) {
return j;
}
swap(vec[i], vec[j]);
}
}
void QuickSort(int left, int right) {
if (left >= right) {
return;
}
auto mid = Partition(left, right);
QuickSort(left, mid);
QuickSort(mid + 1, right);
}
int main() {
ifstream fin("algsort.in");
ofstream fout("algsort.out");
int n;
fin >> n;
for (int i = 0; i < n; i += 1) {
fin >> vec[i];
}
QuickSort(0, n - 1);
for (int i = 0; i < n; i += 1) {
fout << vec[i] << " ";
}
fout << "\n";
return 0;
}