Arrays-wave print row wie

#1

#include
using namespace std;

int main(){
int M,N;
cin>>M>>N;
int arr[M][N];

for (int i = 0; i < M; i++)
{
    for (int j = 0; j < N; j++)
    {
       cin>>arr[i][j];
    }
    
}

cout<<endl;

for (int i = 0; i < M; i++)
{
    if (i%2==0)
    {
        for (int j = 0; i < N; j++)
        {
            cout<<arr[i][j]<<" ";
        }
        
    }

    else
    {
        for (int j = N-1; j >=0 ; j--)
        {
            cout<<arr[i][j]<<" ";
        }
     
    }
    
    
}

return 0;
}

my code is shoeing correct output but after completing it’s task it is giving garbage value
please tell what’s wrong

#2

@sahilkumar23102003_bbf6ee38349d98a1, u wrote i<M instead of j<M,
and to submit the code on hackerblocks here’s the code u were missing “,” and “END”

#3

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