Nested loops: print pattern - square of stars

Problem: Print the following pattern for a given n (e.g. n=5 below).

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Solution in Python:

def print_pattern(n):
    """
    Author: Mayur P Srivastava
    n is number of colmns or rows.
    """

    for i in range(n):
        s = ""

        for j in range(n):
            s += "*"

        print s



Concepts learned: nested loops.