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program.cpp
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59 lines (56 loc) · 1.09 KB
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/* Problem: Program to Move all the negative elements to one side of the array */
#include <iostream>
using namespace std;
//using quicksotrt partition method
void rearrange(int arr[],int n)
{
int j=0;
for(int i=0;i<n;i++)
{
if(arr[i]<0)
{
if(i!=j)
{
swap(arr[i],arr[j]);
}
j++;
}
}
}
//using left and right pointer
void arrangeElements(int arr[],int n)
{
int left=0,right=n-1;
while(left<=right)
{
if(arr[left]>0 && arr[right]>0)
{
right--;
}
else if(arr[left]<0 && arr[right]>0)
{
left++;
right--;
}
else if(arr[left]>0 && arr[right]<0)
{
swap(arr[left],arr[right]);
left++;
right--;
}
else{
left++;
}
}
}
int main()
{
int arr[]={-1,-2,5,10,-88,55};
int n=sizeof(arr)/sizeof(arr[0]);
// rearrange(arr,n);
arrangeElements(arr,n);
for(int i=0;i<n;i++)
{
cout<<arr[i]<<" ";
}
}