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[][5]) {    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[][5] = {       {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