Wave print solution added

Author: akashmodak97

Hacker Blocks/Wave Print Column Wise.cpp

@@ -0,0 +1,48 @@
+/* Hacker Blocks */
+/* Title - Wave Print Column Wise */
+
+// Take as input a two-d array. Wave print it column-wise.
+
+// Input Format
+// Two integers M(row) and N(colomn) and further M * N integers(2-d array numbers).
+
+// Constraints
+// Both M and N are between 1 to 10.
+
+// Output Format
+// All M * N integers seperated by commas with 'END' wriiten in the end(as shown in example).
+
+// Sample Input
+// 4 4
+// 11 12 13 14
+// 21 22 23 24
+// 31 32 33 34
+// 41 42 43 44
+// Sample Output
+// 11, 21, 31, 41, 42, 32, 22, 12, 13, 23, 33, 43, 44, 34, 24, 14, END
+
+#include<iostream>
+using namespace std;
+int main() {
+	int m,n;
+	cin>>m>>n;
+	int i,j;
+	int a[m][n];
+	for(i=0;i<m;i++)
+	for(j=0;j<n;j++)
+	cin>>a[i][j];
+	for(i=0;i<n;i++){
+		if(i%2==0)
+		{
+			for(j=0;j<m;j++)
+				cout<<a[j][i]<<", ";	
+		}
+		else{
+			for(j=m-1;j>=0;j--)
+				cout<<a[j][i]<<", ";
+		}
+	}
+	cout<<" END";
+
+	return 0;
+}