spiralOrderMatrix.cpp

#include<bits/stdc++.h>

using namespace std;

int main(){

    #ifndef ONLINE_JUDGE
        freopen("input.txt", "r", stdin);
        freopen("output.txt", "w", stdout);
    #endif

    int n,m;
    cin>>n>>m;
    int arr[n][m];

    for(int i=0;i<n;i++){
        for(int j=0;j<m;j++){
            cin>>arr[i][j];
        }
    }
    
    // spiral order print 

    int row_start = 0, row_end=n-1, column_start=0, column_end=m-1;

    while(row_start <= row_end && column_start <= column_end){
        // for row start
        for(int col=column_start; col<=column_end; col++){
            cout<<arr[row_start][col]<<" ";
        }
        row_start++;

        // for col end
        for(int row=row_start;row<=row_end;row++){
            cout<<arr[row][column_end]<<" ";
        }
        column_end--;

        // for row end
        for(int col=column_end; col>=column_start; col--){
            cout<<arr[row_end][col]<<" ";
        }
        row_end--;

        // for col start
        for(int row=row_end;row>=row_start;row--){
            cout<<arr[row][column_start]<<" ";
        }
        column_start++;
    }
    
     
    return 0;
}