Pagini recente » Cod sursa (job #3303155) | Cod sursa (job #3328439) | Cod sursa (job #3348345) | Cod sursa (job #3305199) | Cod sursa (job #3341445)
#include <bits/stdc++.h>
using namespace std;
void merge_halves(vector<int> &v, int left, int right) {
int mid = (left + right) / 2;
vector<int> aux;
int i = left, j = mid + 1;
while (i <= mid && j <= right) {
if (v[i] <= v[j]) {
aux.push_back(v[i]);
i++;
} else {
aux.push_back(v[j]);
j++;
}
}
while (i <= mid) {
aux.push_back(v[i]);
i++;
}
while (j <= right) {
aux.push_back(v[j]);
j++;
}
for (int k = left; k <= right; k++) {
v[k] = aux[k - left];
}
}
void merge_sort(vector<int> &v, int left, int right) {
if (left >= right)
return;
int mid = (left + right) / 2;
merge_sort(v, left, mid);
merge_sort(v, mid + 1, right);
merge_halves(v, left, right);
}
int main() {
ifstream fin("algsort.in ");
ofstream fout("algsort.out");
int n;
cin >> n;
vector<int> a(n), temp(n);
for (int i = 0; i < n; i++)
cin >> a[i];
merge_sort(a, 0, n - 1);
for (int i = 0; i < n; i++)
cout << a[i] << " ";
fin.close();
fout.close();
return 0;
}