Pattern Double Sided Arrow.cpp

/* Hacker Blocks */
/* Title - Pattern Double Sided Arrow */
// Take N as input. For a value of N=7, we wish to draw the following pattern :

//                             1 
//                         2 1   1 2 
//                     3 2 1       1 2 3 
//                 4 3 2 1           1 2 3 4 
//                     3 2 1       1 2 3 
//                         2 1   1 2 
//                             1 

#include<iostream>
using namespace std;
int main() {
    int n;
    cin>>n;
    for(int i=1;i<=(n+1)/2;i++){
        for(int j=1;j<=(2*(n+1-2*i));j++){
            cout<<" ";
        }
        for(int j = i;j>0;j--){
            cout<<j<<" ";
        }
        
        for(int j=1;j<(4*(i-1)-1);j++){
            cout<<" ";
        }
        if(i>1){
        for(int j=1;j<=i;j++){
            cout<<j<<" ";
        }
    }
        cout<<endl;
    }
    for(int i=n/2;i>0;i--){
         for(int j=1;j<=(2*(n+1-2*i));j++){
            cout<<" ";
        }
        for(int j = i;j>0;j--){
            cout<<j<<" ";
        }
        
        for(int j=1;j<(4*(i-1)-1);j++){
            cout<<" ";
        }
        if(i>1){
        for(int j=1;j<=i;j++){
            cout<<j<<" ";
        }
        }
        cout<<endl;
    }
	return 0;
}