Pattern of Left and Right Arrows.cpp

///Pattern of Left and Right Arrows

/**
*
*   author :: 101rror
*
**/

#include <bits/stdc++.h>

using namespace std;

#define MAX 100
#define infinity 1000000000000000LL
#define all(x) (x).begin(),(x).end()
#define FastRead ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#define mod(x,m) ((x%m)+m)%m;                               //101rror
#define fastread() (ios_base:: sync_with_stdio(false),cin.tie(NULL))

#define T while(t--)
#define for2(i,a,b) for(i=a;i>=b;i--)
#define for3(i,a,b) for(i=a;i<=b;i=i+2)
#define for1(i,a,b) for(i=a;i<=b;i=i+1)
#define for4(i,a,b) for(i=a;i>=b;i=i-2)

#define fi first
#define se second
#define pb push_back
#define eb emplace_back

#ifdef LOCAL
#include "algo/debug.h"
#else
#define debug(...) 42
#endif


int main()
{
    ios::sync_with_stdio(false);
    cin.tie(0);
    fastread();


    printf("Enter a Number : ");

    int num;
    cin >> num;  // ‘number’ must be odd
    cout << endl;

    int num1 = (num / 2 * 3);

    /// right arrow

    cout << "Right Arrow : ";
    cout << endl;
    cout << endl;

    for(int i = 0; i < num; i++)
    {
        for(int j = 0; j < num; j++)
        {
            if(i == (num / 2) || (j - i) == (num / 2) || (i + j) == num1) /* center horizontal, upper right diagonal, bottom right diagonal  */
            {
                cout << "*";
            }
            else
            {
                cout << " ";
            }
        }
        cout << endl;
    }

    /// left arrow

    cout << endl;
    cout << "Left Arrow : ";
    cout << endl;
    cout << endl;

    for(int i = 0; i < num; i++)
    {
        for(int j = 0; j < num; j++)
        {
            if(i == (num / 2) || (i - j) == (num / 2) || (i + j) == (num / 2)) /* center horizontal, bottom left diagonal, upper left diagonal  */
            {
                cout << "*";
            }
            else
            {
                cout << " ";
            }
        }
        cout << endl;
    }


    return 0;
}