Nu aveti permisiuni pentru a descarca fisierul grader_test9.in
Cod sursa(job #2766568)
Utilizator | Data | 2 august 2021 12:49:35 | |
---|---|---|---|
Problema | Sortare prin comparare | Scor | 60 |
Compilator | cpp-64 | Status | done |
Runda | Arhiva educationala | Marime | 0.73 kb |
#include <cstdio>
#include <algorithm>
#include <random>
using namespace std;
//random number generator
mt19937 rng((long long)new char);
int n, a[500001];
void quicksort(int l, int r) {
if(l<r) {
int x = uniform_int_distribution<int>(l, r)(rng);
swap(a[r], a[x]);
int i = l-1;
for(int j=l;j<r;j++)
if(a[j] <= a[r])
swap(a[++i], a[j]);
swap(a[++i], a[r]);
int q = i;
quicksort(l, q-1);
quicksort(q+1, r);
}
}
int main()
{
freopen("algsort.in", "r", stdin);
freopen("algsort.out", "w", stdout);
scanf("%d", &n);
for(int i=0;i<n;i++)
scanf("%d", &a[i]);
quicksort(0, n-1);
for(int i=0;i<n;i++)
printf("%d ", a[i]);
}