Pagini recente » Cod sursa (job #3247633) | Cod sursa (job #406085) | Cod sursa (job #82791) | Cod sursa (job #2148266) | Cod sursa (job #3345773)
#include <iostream>
#define NMAX 500000
void merge_sort(int *v, int n)
{
int i, j, k;
int *w;
if (n < 2)
return;
merge_sort(v, n / 2);
merge_sort(v + n / 2, n - n / 2);
i = 0;
j = n / 2;
k = 0;
w = new int[n];
while (i < n / 2 && j < n)
if (v[i] < v[j])
w[k++] = v[i++];
else
w[k++] = v[j++];
while (i < n / 2)
w[k++] = v[i++];
while (j < n)
w[k++] = v[j++];
for (int i = 0; i < n; ++i)
v[i] = w[i];
delete[] w;
}
int main()
{
int n;
int v[NMAX];
freopen("algsort.in", "r", stdin);
freopen("algsort.out", "w", stdout);
std::cin >> n;
for (int i = 0; i < n; ++i)
std::cin >> v[i];
merge_sort(v, n);
for (int i = 0; i < n; ++i)
std::cout << v[i] << ' ';
std::cout << '\n';
return 0;
}