Cod sursa(job #2465708)
| Utilizator | Data | 30 septembrie 2019 18:37:15 | |
|---|---|---|---|
| Problema | Sortare prin comparare | Scor | 100 |
| Compilator | cpp-64 | Status | done |
| Runda | Arhiva educationala | Marime | 1.12 kb |
#include <fstream>
using namespace std;
ifstream fin("algsort.in");
ofstream fout("algsort.out");
int n,v[500001],i,j;
int main(){
fin>>n;
for(i=1;i<=n;i++)
fin>>v[i];
for(i=2;i<=n;i++){
j=i;
while(v[j]>v[j/2] && j/2!=0){
swap(v[j],v[j/2]);
j/=2;
}
}
for(i=n;i;i--){
swap(v[1],v[i]);
j=1;
while(j*2<i){
if(v[j]<=v[j*2] || v[j]<=v[j*2+1]){
if(2*j+1<i){
if(v[j*2]<v[j*2+1]){
swap(v[j],v[j*2+1]);
j=j*2+1;
}else{
swap(v[j],v[j*2]);
j=j*2;
}
}else{
if(v[j]<v[j*2]){
swap(v[j],v[j*2]);
j=j*2;
}else{
break;
}
}
}else{
break;
}
}
}
for(i=1;i<=n;i++)
fout<<v[i]<<" ";
return 0;
}
