Waveprint error

#1

#include
using namespace std;

int main()
{
int n=3,m=4;
int row,col;
int a[3][4];

for ( col = 0; col < m; col++)
{	
	if (col%2==0)
	{
		for (row = 0; row < n; row++)
		{
			cout<<a[row][col]<<' ';
		}
	}
	else
	{
		for (row = n-1; row >=0; row--)
		{
			cout<<a[row][col]<<' ';
		}
	}
}
cout<<endl;	

return 0;

// not able to find the error

#2

hi @srivastavaayush1611_3fd51b257da0b834 take the input of 2d array also value for n and m dont hardcode it

#3

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