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QuickSort.cpp
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55 lines (41 loc) · 749 Bytes
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#include<bits/stdc++.h>
using namespace std;
int partition(int a[],int s,int l){
int pivot=a[s];
int i=s+1;
int j=l;
while(i<j){
while(a[j]>pivot && i<j){
j--;
}
while(a[i]<pivot && i<j){
i++;
}
if(i<j){
swap(a[i],a[j]);
}
}
swap(a[s],a[j]);
return j;
}
void quicksort(int a[],int s,int l){
if(s<l){
int pi=partition(a,s,l);
quicksort(a,s,pi-1);
quicksort(a,pi+1,l);
}
return;
}
int main (){
int n;
cin>>n;
int a[n];
for(int i=0;i<n;i++){
cin>>a[i];
}
quicksort(a,0,n-1);
for(int i=0;i<n;i++){
cout<<a[i]<<" ";
}
return 0;
}