Pattern:

333

4444

Solution

Note: Don't jump directly to the solution, try it out yourself first.

Approach:

1)Require minimum 2 nested loop

2)Outer loop is for row

3)Inner loop is for column

4)Print in inner loop

Explanation:

1)The Pattern has 4 rows (total row=4) and each row corresponds to the row number (row 1 has 1 star, row 2 has 2 stars, etc.).

2)To print this pattern , we need two loops:

Outer loop for the rows (row=0 to total_row)

Inner loop for the columns(col= 0 to row ).

3)In each iteration of the outer loop, the inner loop prints (row+1) corresponding to the row number.

Video Solution

Java

public class Pattern {

public static void main(String[] args) {

// Number of rows in the pattern

int total_row = 3;

// Outer loop for rows

for (int row = 0; i < total_row; row++) {

// Inner loop for columns

for (int col=row ; col<=row; col++) {

System.out.print(row+1);

}

// Move to the next line

System.out.println();

}

C++

#include <iostream>
using namespace std;

int main() {
    int total_row = 4;  // number of rows

    // Outer loop for rows
    for (int row = 0; row < total_row ; row++) {
        // Inner loop for columns
        for (int col = 0; col <=row; col++) {
            cout << row+1;
        }
        cout << endl;  // Move to the next line after printing a row
    }

    return 0;
}