Preview:
// You are using GCC
#include<bits/stdc++.h>
using namespace std;
int main(){
    int n;
    cin>>n;
    int arr[n];
    for(int i=0;i<n;i++){
        cin>>arr[i];
    }
    cout<<"after sorted using bubble sort: ";
    for(int i=0;i<n-1;i++){
        for(int j=0;j<n-i-1;j++){
            if(arr[j]>arr[j+1]){
                swap(arr[j],arr[j+1]);
            //   int temp=arr[j];
            //   arr[j]=arr[j+1];
            //   arr[j+1]=temp;
            }
        }
    }
        for(int i=0;i<n;i++){
        cout<<arr[i]<<" ";
        }
    }
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