Pagini recente » Cod sursa (job #2825642) | Cod sursa (job #478796) | Cod sursa (job #258454) | Cod sursa (job #2663081) | Cod sursa (job #1192782)
using namespace std;
#include <fstream>
//#include <ctime>
//#include <cstdlib>
ifstream fin("algsort.in");
ofstream fout("algsort.out");
int v[500010];
int aux[500010];
void swap1(int, int) ;
void quick_sort(int, int) ;
int divide(int, int) ;
void merge_sort(int, int) ;
void interclasare(int, int, int, int) ;
void shell_sort(int, int) ;
int main()
{
//srand(time(NULL));
int i, n;
fin>>n;
for(i=0; i<n; ++i) fin>>v[i];
/*for(i=0; i<n/2; ++i)
{
a=rand()%n; b=rand()%n;
swap1(a, b);
}*/
shell_sort(0, n-1);
for(i=0; i<n; ++i) fout<<v[i]<<' ';
return 0;
}
void swap1(int a, int b)
{
int aux=v[a];
v[a]=v[b];
v[b]=aux;
}
void quick_sort(int p, int u)
{
int m=divide(p, u);
if(p<m-1) quick_sort(p, m-1);
if(m+1<u) quick_sort(m+1, u);
}
int divide(int st, int dr)
{
//int random = (rand())%((dr-st+1)) + st;
int random = (st+dr)/2;
swap1(random, st);
int x=v[st];
while(st<dr)
{
while(st<dr && v[dr]>=x) --dr;
v[st]=v[dr];
while(st<dr && v[st]<=x) ++st;
v[dr]=v[st];
}
v[st]=x;
return st;
}
void merge_sort(int st, int dr)
{
int mijl=(st+dr)>>1;
if(st<mijl) merge_sort(st, mijl);
if(mijl+1<dr) merge_sort(mijl+1, dr);
interclasare(st, mijl, mijl+1, dr);
}
void interclasare(int st1, int dr1, int st2, int dr2)
{
if(v[dr1]<=v[st2]) return;
int i, nr=0, init=st1;
while(st1!=dr1+1 && st2!=dr2+1)
{
if(v[st1]<v[st2])
aux[nr]=v[st1], ++st1;
else aux[nr]=v[st2], ++st2;
++nr;
}
for(i=st1; i<=dr1; ++i) aux[nr++]=v[i];
for(i=st2; i<=dr2; ++i) aux[nr++]=v[i];
for(i=init; i<=dr2; ++i) v[i]=aux[i-init];
}
void shell_sort(int st, int dr)
{
int i, n = dr-st+1, dif;
for(dif = n/2; dif>=1; dif>>=1)
{
for(i=st; i+dif<=dr; ++i)
if(v[i]>v[i+dif])
swap1(i, i+dif);
}
}