Sir i am not able to pass the test cases i doesnot get my mistake please help me my code is below

#1
#2

this link doesn’t any code

resend the correct link

#3

okk sir

#4

Your mistakes

  1. print ", " (comma and space ) after each element
  2. don’t print endl at input

Modified Code

#include<iostream>
using namespace std;
void waveprint( int arr[][1000], int row, int col) {
	int end_column = col - 1;
	int end_row = row - 1;
	for ( int j = 0; j <= end_column; j++) {
		if (j % 2 == 0) {
			for ( int i = 0; i <= end_row; i++) {
				cout << arr[i][j] << ", ";
			}
		}
		else
			for ( int i = end_row; i >= 0; i--) {
				cout << arr[i][j] << ", ";
			}


	}
	cout << "END";

}
int main() {
	int m, n;
//cout<<" enter no of row or column"<<endl;
	cin >> m >> n;
	int arr[m][1000];
	for (int i = 0; i < m; i++) {
		for ( int j = 0; j < n; j++) {
			cin >> arr[i][j];
		}
	}
	waveprint(arr, m, n);
	return 0;
}

now it is passing all testcase

if your doubt resolved plz mark it as resolved