Function for Sieve of Eratosthenes
def sieve ( ) : NEW_LINE INDENT isPrime [ 0 ] = isPrime [ 1 ] = False ; NEW_LINE for i in range ( 2 , int ( sqrt ( sz ) ) + 1 ) : NEW_LINE INDENT if ( isPrime [ i ] ) : NEW_LINE INDENT for j in range ( i * i , sz , i ) : NEW_LINE INDENT isPrime [ j ] = False ; NEW_LINE DEDENT DEDENT DEDENT DEDENT