# Print a given matrix in zigzag form in C++

In this problem, we are given a 2-dimensional matrix. Our task is to print the zigzag form of the matrix.

Let’s take an example to understand the problem

Input:
12 99 43
10 82 50
15 75 5
Output: 12 99 43 50 82 10 15 75 5

To solve this problem, we will print the elements of the array in both directions (LtoR and RtoL). And change the direction using the flag variable.

## Example

Live Demo

#include <iostream>
using namespace std;
void printZigZagPattern(int row, int col, int a[]) {
int evenRow = 0;
int oddRow = 1;
while (evenRow<ow) {
for (int i=0;i<col;i++) {
cout<<a[evenRow][i]<<" ";
}
evenRow = evenRow + 2;
if(oddRow < row) {
for (int i=col-1; i>=0; i--)
cout<<a[oddRow][i] <<" ";
}
oddRow = oddRow + 2;
}
}
int main() {
int r = 3, c = 3;
int mat[] = {
{12,99,43},
{10,82,50},
{15,75,5}
};
cout<<"Elements of the matrix in ZigZag manner :\n";
printZigZagPattern(r , c , mat);
return 0;
}

## Output

Elements of the matrix in a ZigZag manner −

12 99 43 50 82 10 15 75 5