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Cod sursa(job #780773)
#include <stdio.h>
#include <algorithm>
#define NMax 500010
using namespace std;
const char IN[]="algsort.in",OUT[]="algsort.out";
int N;
int v[NMax];
void slowsort(int ls,int ld){
for (int i=ls;i<=ld;++i)
for (int j=i;j>ls && v[j]<v[j-1];--j)
swap(v[j],v[j-1]);
}
int getpivot(int ls,int ld){
int i,j,y;
while (ls<ld){
for (i=j=ls;i<=ld;i+=5)
{
y=min(ld,i+4);
slowsort(i,y);
swap(v[j++],v[i+((y-i+1)>>1) + ((y-i+1)&1)-1]);
}
ld=j-1;
}
}
void sort(int ls,int ld){
if (ls>=ld) return;
if (ld-ls<5){
slowsort(ls,ld);
return;
}
int i,j;bool isSorted=true;
getpivot(ls,ld);
for (i=ls+1,j=ls;i<=ld;++i)
{
isSorted&= v[i-1]<=v[i];
if (v[i]<v[ls])
swap(v[++j],v[i]);
}
if (isSorted) return;
swap(v[j],v[ls]);
sort(ls,j-1);
sort(j+1,ld);
}
int main()
{
int i;
freopen(IN,"r",stdin);
scanf("%d",&N);
for (i=1;i<=N;++i) scanf("%d",v+i);
fclose(stdin);
sort(1,N);
freopen(OUT,"w",stdout);
for (i=1;i<=N;++i) printf("%d ",v[i]);
fclose(stdout);
return 0;
}